{"id":16790,"date":"2026-01-07T17:07:24","date_gmt":"2026-01-07T17:07:24","guid":{"rendered":"https:\/\/icobench.com\/fr\/?page_id=16790"},"modified":"2026-01-07T17:07:24","modified_gmt":"2026-01-07T17:07:24","slug":"token-erc20","status":"publish","type":"page","link":"https:\/\/icobench.com\/fr\/token-erc20\/","title":{"rendered":"Qu&rsquo;est-ce que l&rsquo;ERC20 et les tokens ERC20 ? Guide simple du d\u00e9butant en crypto"},"content":{"rendered":"<p>Bienvenue dans ce guide sur le concept de token<strong> ERC20<\/strong>, ou <em>Ethereum Request for Comment 20<\/em>, la norme de token la plus r\u00e9pandue dans l\u2019univers Ethereum. Depuis plus de 10 ans, cette norme d\u00e9finit un ensemble de r\u00e8gles que doivent suivre les tokens cr\u00e9\u00e9s sur cette blockchain. Pourquoi ? Pour que tous les tokens ERC-20 soient compatibles entre eux et avec les wallets, les exchanges et les applications d\u00e9centralis\u00e9es (DeFi).<\/p>\n<p>Dans cette page, vous allez d\u00e9couvrir <strong>ce qu\u2019est un token ERC20<\/strong>, comment il fonctionne sur la <strong>blockchain Ethereum<\/strong>, \u00e0 quoi il sert concr\u00e8tement et quels sont ses avantages et limites, des exemples concrets et ce que \u00e7a implique pour vous si vous commencez dans la crypto.<\/p>\n<div style=\"background: #920047;margin: auto;width: 50%;text-align: center;padding: 8px;border-radius: 5px;background-image: linear-gradient(107deg,#930046,#59008a);color: white;padding-left: 1em;padding-right: 1em;font-size: 16px\">Acheter des tokens ERC-20<\/div>\n<div><div>\n    <section class=\"toc-sticky w-100 bg-white \">\n        <div class=\"toc-sticky__container container\">\n            <div class=\"toc-sticky__open d-flex align-items-end\" data-bs-toggle=\"collapse\" aria-controls=\"multiCollapse1\" data-bs-target=\"#multiCollapse1\">\n                <button class=\"btn btn-primary collapse-action-btn p-1 rounded-circle\" type=\"button\">\n                    <i class=\"icon-chevron-up\"><\/i>\n                <\/button>\n                <span id=\"toc-current-title\" class=\"d-flex align-items-center\">\n                    Table of Contents\n                <\/span>\n                <span class=\"toc-main-title-permanent\">Table of Contents<\/span>\n            <\/div>\n            <div class=\"collapse my-3\" id=\"multiCollapse1\">\n                <ol class=\"StepProgress\">\n                                                                        <li class=\"StepProgress-item current\">\n                                                <div class=\"StepProgress-item__group\">\n                            <a data-id=\"erc20_et_token_erc20_lessentiel_a_retenir\" onclick='handleScrollToTitle(\"erc20_et_token_erc20_lessentiel_a_retenir\")' class=\"StepProgress-item__link\" data-level=\"2\">ERC20 et token ERC20 : l'essentiel \u00e0 retenir<\/a>\n                                                    <\/div>\n                                                <\/li>\n                                                                        <li class=\"StepProgress-item\">\n                                                <div class=\"StepProgress-item__group\">\n                            <a data-id=\"quest-ce_quun_token_erc20\" onclick='handleScrollToTitle(\"quest-ce_quun_token_erc20\")' class=\"StepProgress-item__link\" data-level=\"2\">Qu\u2019est-ce qu\u2019un token ERC20 ?<\/a>\n                                                    <\/div>\n                                                <\/li>\n                                                                        <li class=\"StepProgress-item\">\n                                                <div class=\"StepProgress-item__group\">\n                            <a data-id=\"a_quoi_sert_la_norme_erc20\" onclick='handleScrollToTitle(\"a_quoi_sert_la_norme_erc20\")' class=\"StepProgress-item__link\" data-level=\"2\">\u00c0 quoi sert la norme ERC20 ?<\/a>\n                                                    <\/div>\n                                                <\/li>\n                                                                        <li class=\"StepProgress-item\">\n                                                <div class=\"StepProgress-item__group\">\n                            <a data-id=\"comment_fonctionne_un_token_erc20\" onclick='handleScrollToTitle(\"comment_fonctionne_un_token_erc20\")' class=\"StepProgress-item__link\" data-level=\"2\">Comment fonctionne un token ERC20 ?<\/a>\n                                                    <\/div>\n                                                <\/li>\n                                                                        <li class=\"StepProgress-item\">\n                                                <div class=\"StepProgress-item__group\">\n                            <a data-id=\"les_fonctions_cles_dun_token_erc20\" onclick='handleScrollToTitle(\"les_fonctions_cles_dun_token_erc20\")' class=\"StepProgress-item__link\" data-level=\"2\">Les fonctions cl\u00e9s d\u2019un token ERC20<\/a>\n                                                    <\/div>\n                                                <\/li>\n                                                                        <li class=\"StepProgress-item\">\n                                                <div class=\"StepProgress-item__group\">\n                            <a data-id=\"exemples_de_tokens_erc20_connus\" onclick='handleScrollToTitle(\"exemples_de_tokens_erc20_connus\")' class=\"StepProgress-item__link\" data-level=\"2\">Exemples de tokens ERC20 connus<\/a>\n                                                    <\/div>\n                                                <\/li>\n                                                                        <li class=\"StepProgress-item\">\n                                                <div class=\"StepProgress-item__group\">\n                            <a data-id=\"avantages_du_token_erc20\" onclick='handleScrollToTitle(\"avantages_du_token_erc20\")' class=\"StepProgress-item__link\" data-level=\"2\">Avantages du token ERC20<\/a>\n                                                    <\/div>\n                                                <\/li>\n                                                                        <li class=\"StepProgress-item\">\n                                                <div class=\"StepProgress-item__group\">\n                            <a data-id=\"limites_et_risques_a_connaitre_du_token_erc20\" onclick='handleScrollToTitle(\"limites_et_risques_a_connaitre_du_token_erc20\")' class=\"StepProgress-item__link\" data-level=\"2\">Limites et risques \u00e0 conna\u00eetre du token ERC20<\/a>\n                                                    <\/div>\n                                                <\/li>\n                                                                        <li class=\"StepProgress-item\">\n                                                <div class=\"StepProgress-item__group\">\n                            <a data-id=\"ou_stocker_et_utiliser_des_tokens_erc20\" onclick='handleScrollToTitle(\"ou_stocker_et_utiliser_des_tokens_erc20\")' class=\"StepProgress-item__link\" data-level=\"2\">O\u00f9 stocker et utiliser des tokens ERC20 ?<\/a>\n                                                    <\/div>\n                                                <\/li>\n                                                                        <li class=\"StepProgress-item\">\n                                                <div class=\"StepProgress-item__group\">\n                            <a data-id=\"glossaire\" onclick='handleScrollToTitle(\"glossaire\")' class=\"StepProgress-item__link\" data-level=\"2\">Glossaire<\/a>\n                                                    <\/div>\n                                                <\/li>\n                                                                        <li class=\"StepProgress-item\">\n                                                <div class=\"StepProgress-item__group\">\n                            <a data-id=\"conclusion\" onclick='handleScrollToTitle(\"conclusion\")' class=\"StepProgress-item__link\" data-level=\"2\">Conclusion<\/a>\n                                                    <\/div>\n                                                <\/li>\n                                                                        <li class=\"StepProgress-item\">\n                                                <div class=\"StepProgress-item__group\">\n                            <a data-id=\"faq_questions_frequentes_sur_les_tokens_erc20\" onclick='handleScrollToTitle(\"faq_questions_frequentes_sur_les_tokens_erc20\")' class=\"StepProgress-item__link\" data-level=\"2\">FAQ \u2013 Questions fr\u00e9quentes sur les tokens ERC20<\/a>\n                                                    <\/div>\n                                                <\/li>\n                                    <\/ol>\n                <div class=\"toc-sticky__container__disperse\"><\/div>\n                <div class=\"toc-sticky__btn-top justify-content-center\">\n                    <button class=\"btn btn-link d-flex align-items-center\" onclick=\"{btnTop()}\"><p>Show Full Guide<\/p><img decoding=\"async\" src=\"\/wp-content\/plugins\/table-of-contents\/assets\/images\/arrow-up-circle.svg\" alt=\"arrow-up-circle\">\n                    <\/button>\n                <\/div>\n            <\/div>\n        <\/div>\n    <\/section>\n    <div class=\"toc-sticky-list\">\n        <div class=\"toc-sticky__container container\">\n            <div class=\"toc-sticky__open d-flex align-items-end\" data-bs-toggle=\"collapse\" aria-controls=\"multiCollapse2\" data-bs-target=\"#multiCollapse2\">\n                <button class=\"btn btn-primary collapse-action-btn p-1 rounded-circle\" type=\"button\">\n                    <i class=\"icon-chevron-up up\"><\/i>\n                <\/button>\n                <span id=\"toc-current-title\" class=\"d-flex align-items-center\">\n                    Table of Contents\n                <\/span>\n            <\/div>\n            <div class=\"collapse my-3\" id=\"multiCollapse2\">\n                <ol class=\"StepProgress\">\n                    \t\t\t\t\t \t\t\t\t\t                                                     <li class=\"StepProgress-item current \">\n                                                    <div class=\"StepProgress-item__group\">\n                                <a data-id=\"erc20_et_token_erc20_lessentiel_a_retenir\" onclick='handleScrollToTitle(\"erc20_et_token_erc20_lessentiel_a_retenir\")' class=\"StepProgress-item__link\" data-level=\"2\">ERC20 et token ERC20 : l'essentiel \u00e0 retenir<\/a>\n                                                            <\/div>\n                                                    <\/li>\n                    \t\t\t\t\t \t\t\t\t\t                                                     <li class=\"StepProgress-item \">\n                                                    <div class=\"StepProgress-item__group\">\n                                <a data-id=\"quest-ce_quun_token_erc20\" onclick='handleScrollToTitle(\"quest-ce_quun_token_erc20\")' class=\"StepProgress-item__link\" data-level=\"2\">Qu\u2019est-ce qu\u2019un token ERC20 ?<\/a>\n                                                            <\/div>\n                                                    <\/li>\n                    \t\t\t\t\t \t\t\t\t\t                                                     <li class=\"StepProgress-item \">\n                                                    <div class=\"StepProgress-item__group\">\n                                <a data-id=\"a_quoi_sert_la_norme_erc20\" onclick='handleScrollToTitle(\"a_quoi_sert_la_norme_erc20\")' class=\"StepProgress-item__link\" data-level=\"2\">\u00c0 quoi sert la norme ERC20 ?<\/a>\n                                                            <\/div>\n                                                    <\/li>\n                    \t\t\t\t\t \t\t\t\t\t\n\t\t\t\t\t\t <span class=\"show_moretoc\">Show Full Guide<\/span>\n\t\t\t\t\t\t \t\t\t\t\t \t\t\t\t\t\t  \t\t\t\t\t                                                      <li class=\"StepProgress-item ms_hidetoc\">\n                                                    <div class=\"StepProgress-item__group\">\n                                <a data-id=\"comment_fonctionne_un_token_erc20\" onclick='handleScrollToTitle(\"comment_fonctionne_un_token_erc20\")' class=\"StepProgress-item__link\" data-level=\"2\">Comment fonctionne un token ERC20 ?<\/a>\n                                                            <\/div>\n                                                    <\/li>\n                    \t\t\t\t\t \t\t\t\t\t \t\t\t\t\t\t  \t\t\t\t\t                                                      <li class=\"StepProgress-item ms_hidetoc\">\n                                                    <div class=\"StepProgress-item__group\">\n                                <a data-id=\"les_fonctions_cles_dun_token_erc20\" onclick='handleScrollToTitle(\"les_fonctions_cles_dun_token_erc20\")' class=\"StepProgress-item__link\" data-level=\"2\">Les fonctions cl\u00e9s d\u2019un token ERC20<\/a>\n                                                            <\/div>\n                                                    <\/li>\n                    \t\t\t\t\t \t\t\t\t\t \t\t\t\t\t\t  \t\t\t\t\t                                                      <li class=\"StepProgress-item ms_hidetoc\">\n                                                    <div class=\"StepProgress-item__group\">\n                                <a data-id=\"exemples_de_tokens_erc20_connus\" onclick='handleScrollToTitle(\"exemples_de_tokens_erc20_connus\")' class=\"StepProgress-item__link\" data-level=\"2\">Exemples de tokens ERC20 connus<\/a>\n                                                            <\/div>\n                                                    <\/li>\n                    \t\t\t\t\t \t\t\t\t\t \t\t\t\t\t\t  \t\t\t\t\t                                                      <li class=\"StepProgress-item ms_hidetoc\">\n                                                    <div class=\"StepProgress-item__group\">\n                                <a data-id=\"avantages_du_token_erc20\" onclick='handleScrollToTitle(\"avantages_du_token_erc20\")' class=\"StepProgress-item__link\" data-level=\"2\">Avantages du token ERC20<\/a>\n                                                            <\/div>\n                                                    <\/li>\n                    \t\t\t\t\t \t\t\t\t\t \t\t\t\t\t\t  \t\t\t\t\t                                                      <li class=\"StepProgress-item ms_hidetoc\">\n                                                    <div class=\"StepProgress-item__group\">\n                                <a data-id=\"limites_et_risques_a_connaitre_du_token_erc20\" onclick='handleScrollToTitle(\"limites_et_risques_a_connaitre_du_token_erc20\")' class=\"StepProgress-item__link\" data-level=\"2\">Limites et risques \u00e0 conna\u00eetre du token ERC20<\/a>\n                                                            <\/div>\n                                                    <\/li>\n                    \t\t\t\t\t \t\t\t\t\t \t\t\t\t\t\t  \t\t\t\t\t                                                      <li class=\"StepProgress-item ms_hidetoc\">\n                                                    <div class=\"StepProgress-item__group\">\n                                <a data-id=\"ou_stocker_et_utiliser_des_tokens_erc20\" onclick='handleScrollToTitle(\"ou_stocker_et_utiliser_des_tokens_erc20\")' class=\"StepProgress-item__link\" data-level=\"2\">O\u00f9 stocker et utiliser des tokens ERC20 ?<\/a>\n                                                            <\/div>\n                                                    <\/li>\n                    \t\t\t\t\t \t\t\t\t\t \t\t\t\t\t\t  \t\t\t\t\t                                                      <li class=\"StepProgress-item ms_hidetoc\">\n                                                    <div class=\"StepProgress-item__group\">\n                                <a data-id=\"glossaire\" onclick='handleScrollToTitle(\"glossaire\")' class=\"StepProgress-item__link\" data-level=\"2\">Glossaire<\/a>\n                                                            <\/div>\n                                                    <\/li>\n                    \t\t\t\t\t \t\t\t\t\t \t\t\t\t\t\t  \t\t\t\t\t                                                      <li class=\"StepProgress-item ms_hidetoc\">\n                                                    <div class=\"StepProgress-item__group\">\n                                <a data-id=\"conclusion\" onclick='handleScrollToTitle(\"conclusion\")' class=\"StepProgress-item__link\" data-level=\"2\">Conclusion<\/a>\n                                                            <\/div>\n                                                    <\/li>\n                    \t\t\t\t\t \t\t\t\t\t \t\t\t\t\t\t  \t\t\t\t\t                                                      <li class=\"StepProgress-item ms_hidetoc\">\n                                                    <div class=\"StepProgress-item__group\">\n                                <a data-id=\"faq_questions_frequentes_sur_les_tokens_erc20\" onclick='handleScrollToTitle(\"faq_questions_frequentes_sur_les_tokens_erc20\")' class=\"StepProgress-item__link\" data-level=\"2\">FAQ \u2013 Questions fr\u00e9quentes sur les tokens ERC20<\/a>\n                                                            <\/div>\n                                                    <\/li>\n                                    <\/ol>\n            <\/div>\n            <div class=\"toc-sticky__container__disperse\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n\n<script id=\"toc-js\">\n    window.addEventListener(\"DOMContentLoaded\", () => {\n        const header = document.querySelector(\".site-header\");\n\n        const pageLegend = document.querySelector('#multiCollapse1');\n        const pageLegendList = document.querySelector('#multiCollapse2');\n        const pageLegendCollapse = new bootstrap.Collapse(pageLegend, {toggle: document.querySelector(\".toc-sticky\").classList.contains('sticky')});\n\n        \/**\n         * Changing current title\n         *\/\n        (function (pageLegend) {\n            const titleNodes = pageLegend.querySelectorAll('.StepProgress-item__link');\n\n            if (!titleNodes.length) return;\n\n            const titles = 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    top: el.offsetTop - 60 - headerHeightDifference - 10,\n        });\n    }\n<\/script>\n<\/div>\n<h2><span id=\"erc20_et_token_erc20_lessentiel_a_retenir\">ERC20 et token ERC20 : l\u2019essentiel \u00e0 retenir<\/span><\/h2>\n<div class=\"su-note\" style=\"border-color:#c2e1e0;border-radius:3px;-moz-border-radius:3px;-webkit-border-radius:3px;\"><div class=\"su-note-inner su-u-clearfix su-u-trim\" style=\"background-color:#dcfbfa;border-color:#ffffff;color:#333333;border-radius:3px;-moz-border-radius:3px;-webkit-border-radius:3px;\">\n<ul>\n<li>Un <strong>token ERC20<\/strong> est un type de <strong>jeton num\u00e9rique cr\u00e9\u00e9 sur la blockchain Ethereum<\/strong>, qui suit une norme technique pr\u00e9cise appel\u00e9e <strong>ERC-20<\/strong>.<\/li>\n<li>Cette norme permet \u00e0 tous les tokens conformes d\u2019\u00eatre compatibles entre eux, que ce soit pour les <a href=\"https:\/\/icobench.com\/fr\/meilleur-wallet-crypto\/\" rel=\"\">wallets<\/a>, les plateformes d\u2019\u00e9change ou les applications d\u00e9centralis\u00e9es (DApps)<\/li>\n<li>Si vous d\u00e9butez dans la crypto, comprendre ce qu\u2019est un token ERC20 est essentiel : ces tokens constituent une grande partie de l\u2019\u00e9cosyst\u00e8me Ethereum et sont utilis\u00e9s dans de nombreuses applications DeFi, stablecoins, projets tokenis\u00e9s,<\/li>\n<\/ul>\n<\/div><\/div>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-16828\" src=\"https:\/\/icobench.com\/fr\/wp-content\/uploads\/sites\/5\/2026\/01\/stock-image_optimized.webp\" alt=\"token ERC20\" width=\"1200\" height=\"673\" srcset=\"https:\/\/icobench.com\/fr\/wp-content\/uploads\/sites\/5\/2026\/01\/stock-image_optimized.webp 1456w, https:\/\/icobench.com\/fr\/wp-content\/uploads\/sites\/5\/2026\/01\/stock-image_optimized-300x168.webp 300w, https:\/\/icobench.com\/fr\/wp-content\/uploads\/sites\/5\/2026\/01\/stock-image_optimized-1024x574.webp 1024w, https:\/\/icobench.com\/fr\/wp-content\/uploads\/sites\/5\/2026\/01\/stock-image_optimized-768x430.webp 768w\" sizes=\"(max-width: 1200px) 100vw, 1200px\"><\/p>\n<h2><span id=\"quest-ce_quun_token_erc20\">Qu\u2019est-ce qu\u2019un token ERC20 ?<\/span><\/h2>\n<p>Un <strong>token ERC20<\/strong> est un <strong>jeton num\u00e9rique fongible<\/strong> cr\u00e9\u00e9 sur la blockchain Ethereum. Il respecte une norme technique appel\u00e9e <strong>ERC\u201120<\/strong>, qui d\u00e9finit un ensemble de r\u00e8gles communes pour tous les tokens de ce type.<\/p>\n<p>Fongible signifie que chaque token est interchangeable avec un autre identique. Un token ERC20 vaut exactement la m\u00eame chose qu\u2019un autre token ERC20 du m\u00eame projet, comme deux pi\u00e8ces de 1 euro.<\/p>\n<p>La norme ERC20 permet notamment :<\/p>\n<ul>\n<li><strong><span style=\"font-weight: 400\">\u2705 <\/span><\/strong>d\u2019envoyer des tokens d\u2019une adresse \u00e0 une autre,<\/li>\n<li><strong><span style=\"font-weight: 400\">\u2705\u00a0 <\/span><\/strong>de consulter un solde,<\/li>\n<li><strong><span style=\"font-weight: 400\">\u2705 <\/span><\/strong>d\u2019autoriser une application ou un contrat \u00e0 utiliser des tokens en votre nom.<\/li>\n<\/ul>\n<p>Gr\u00e2ce \u00e0 cette standardisation, tous les tokens ERC20 fonctionnent de mani\u00e8re similaire sur les wallets, plateformes d\u2019\u00e9change et applications compatibles Ethereum.<\/p>\n<h2><span id=\"a_quoi_sert_la_norme_erc20\">\u00c0 quoi sert la norme ERC20 ?<\/span><\/h2>\n<p>Avant l\u2019ERC20, chaque projet cr\u00e9ait ses propres r\u00e8gles pour g\u00e9rer les tokens. Cela rendait leur int\u00e9gration compliqu\u00e9e, voire impossible, dans les wallets ou exchanges.<\/p>\n<p>La norme ERC20 a r\u00e9solu ce probl\u00e8me en imposant un <strong>langage commun<\/strong>. R\u00e9sultat :<\/p>\n<ul>\n<li>un <a href=\"https:\/\/icobench.com\/fr\/news\/wallet-ico-ethereum-reveille-apres-10-ans-104-transformes-en-15-m\/\" rel=\"\">wallet Ethereum<\/a> peut g\u00e9rer des milliers de tokens diff\u00e9rents,<\/li>\n<li>une plateforme d\u2019\u00e9change peut lister un nouveau token plus facilement,<\/li>\n<li>les applications DeFi peuvent interagir avec plusieurs tokens sans adaptation sp\u00e9cifique.<\/li>\n<\/ul>\n<p>C\u2019est l\u2019une des raisons pour lesquelles l\u2019\u00e9cosyst\u00e8me Ethereum s\u2019est d\u00e9velopp\u00e9 aussi rapidement.<\/p>\n<h2><span id=\"comment_fonctionne_un_token_erc20\">Comment fonctionne un token ERC20 ?<\/span><\/h2>\n<p>Un token ERC20 fonctionne gr\u00e2ce \u00e0 un <strong>smart contract<\/strong>, c\u2019est-\u00e0-dire un programme d\u00e9ploy\u00e9 sur la blockchain Ethereum.<\/p>\n<div class=\"su-box su-box-style-default\" id=\"\" style=\"border-color:#000002;border-radius:3px\"><div class=\"su-box-title\" style=\"background-color:#301835;color:#ffffff;border-top-left-radius:1px;border-top-right-radius:1px\">Ce contrat enregistre :<\/div><div class=\"su-box-content su-u-clearfix su-u-trim\" style=\"border-bottom-left-radius:1px;border-bottom-right-radius:1px\">\n<ul>\n<li>le nombre total de tokens,<\/li>\n<li>les soldes de chaque adresse,<\/li>\n<li>les r\u00e8gles de transfert.<\/li>\n<\/ul>\n<\/div><\/div>\n<p>Lorsque vous envoyez un token ERC20, vous ne d\u00e9placez pas un fichier. Vous d\u00e9clenchez une fonction du smart contract qui met \u00e0 jour les soldes.<\/p>\n<p>M\u00eame si vous n\u2019envoyez pas d\u2019ETH, chaque transaction n\u00e9cessite des <strong>frais de gas<\/strong>, pay\u00e9s en Ether. Ces frais r\u00e9mun\u00e8rent le r\u00e9seau Ethereum pour le traitement de l\u2019op\u00e9ration.<\/p>\n<h2><span id=\"les_fonctions_cles_dun_token_erc20\">Les fonctions cl\u00e9s d\u2019un token ERC20<\/span><\/h2>\n<p>Pour \u00eatre conforme \u00e0 la norme ERC20, un smart contract doit inclure plusieurs fonctions essentielles, notamment :<\/p>\n<ul>\n<li><strong>totalSupply<\/strong> : nombre total de tokens existants<\/li>\n<li><strong>balanceOf<\/strong> : solde d\u2019une adresse<\/li>\n<li><strong>transfer<\/strong> : envoi de tokens<\/li>\n<li><strong>approve<\/strong> : autorisation donn\u00e9e \u00e0 un tiers<\/li>\n<li><strong>allowance<\/strong> : montant autoris\u00e9 pour ce tiers<\/li>\n<li><strong>transferFrom<\/strong> : transfert effectu\u00e9 par un tiers autoris\u00e9<\/li>\n<\/ul>\n<p>Ces fonctions garantissent une compatibilit\u00e9 compl\u00e8te entre les diff\u00e9rents services de l\u2019\u00e9cosyst\u00e8me Ethereum.<\/p>\n<h2><span id=\"exemples_de_tokens_erc20_connus\">Exemples de tokens ERC20 connus<\/span><\/h2>\n<p>De nombreux projets populaires utilisent des tokens ERC20, par exemple :<\/p>\n<ul>\n<li><strong>USDT (Tether)<\/strong> et <strong>USDC<\/strong> : stablecoins index\u00e9s sur le dollar<\/li>\n<li><strong>UNI<\/strong> : token de gouvernance d\u2019Uniswap<\/li>\n<li><strong>LINK<\/strong> : token du r\u00e9seau Chainlink<\/li>\n<li><strong>WBTC<\/strong> : version tokenis\u00e9e du Bitcoin sur Ethereum<\/li>\n<\/ul>\n<p>Ces tokens peuvent \u00eatre utilis\u00e9s dans des wallets Ethereum, \u00e9chang\u00e9s sur des plateformes ou int\u00e9gr\u00e9s dans des protocoles DeFi.<\/p>\n<h2><span id=\"avantages_du_token_erc20\">Avantages du token ERC20<\/span><\/h2>\n<p>Les tokens ERC20 pr\u00e9sentent plusieurs avantages importants :<\/p>\n<ul>\n<li><strong><span style=\"font-weight: 400\">\u2705 <\/span>Interop\u00e9rabilit\u00e9<\/strong> : ils fonctionnent sur tous les services compatibles Ethereum<\/li>\n<li><strong><span style=\"font-weight: 400\">\u2705 <\/span>Standardisation<\/strong> : pas besoin de r\u00e8gles sp\u00e9cifiques pour chaque token<\/li>\n<li><strong><span style=\"font-weight: 400\">\u2705 <\/span>Large adoption<\/strong> : la majorit\u00e9 des tokens Ethereum utilisent cette norme<\/li>\n<li><strong><span style=\"font-weight: 400\">\u2705 <\/span>Facilit\u00e9 d\u2019int\u00e9gration<\/strong> : \u00e9changes, wallets et applications les reconnaissent automatiquement<\/li>\n<\/ul>\n<p>Ces points expliquent pourquoi l\u2019ERC20 est devenu le standard dominant.<\/p>\n<div style=\"background: #920047;margin: auto;width: 50%;text-align: center;padding: 8px;border-radius: 5px;background-image: linear-gradient(107deg,#930046,#59008a);color: white;padding-left: 1em;padding-right: 1em;font-size: 16px\">Acheter des tokens ERC-20<\/div>\n<h2><span id=\"limites_et_risques_a_connaitre_du_token_erc20\">Limites et risques \u00e0 conna\u00eetre du token ERC20<\/span><\/h2>\n<p>Malgr\u00e9 ses avantages, le token ERC20 pr\u00e9sente certaines limites :<\/p>\n<ul>\n<li><strong><span style=\"font-weight: 400\">\u274c <\/span><\/strong>Les <strong>frais de gas<\/strong> peuvent \u00eatre \u00e9lev\u00e9s lorsque le r\u00e9seau Ethereum est tr\u00e8s sollicit\u00e9<\/li>\n<li><strong><span style=\"font-weight: 400\">\u274c <\/span><\/strong>La s\u00e9curit\u00e9 d\u00e9pend du <strong>smart contract<\/strong> : une erreur peut entra\u00eener une perte de fonds<\/li>\n<li><strong><span style=\"font-weight: 400\">\u274c <\/span><\/strong>L\u2019ERC20 ne g\u00e8re que des tokens fongibles (pas les NFT)<\/li>\n<\/ul>\n<p>Il est donc important de v\u00e9rifier la <strong>fiabilit\u00e9 d\u2019un projet<\/strong> avant d\u2019utiliser ou d\u2019acheter un token.<\/p>\n<p><img decoding=\"async\" class=\"aligncenter wp-image-16830\" src=\"https:\/\/icobench.com\/fr\/wp-content\/uploads\/sites\/5\/2026\/01\/stock-image_optimized.jpg\" alt=\"ETH \" width=\"1200\" height=\"673\" srcset=\"https:\/\/icobench.com\/fr\/wp-content\/uploads\/sites\/5\/2026\/01\/stock-image_optimized.jpg 1456w, https:\/\/icobench.com\/fr\/wp-content\/uploads\/sites\/5\/2026\/01\/stock-image_optimized-300x168.jpg 300w, https:\/\/icobench.com\/fr\/wp-content\/uploads\/sites\/5\/2026\/01\/stock-image_optimized-1024x574.jpg 1024w, https:\/\/icobench.com\/fr\/wp-content\/uploads\/sites\/5\/2026\/01\/stock-image_optimized-768x430.jpg 768w\" sizes=\"(max-width: 1200px) 100vw, 1200px\"><\/p>\n<h2><span id=\"ou_stocker_et_utiliser_des_tokens_erc20\">O\u00f9 stocker et utiliser des tokens ERC20 ?<\/span><\/h2>\n<p>Les tokens ERC20 peuvent \u00eatre stock\u00e9s dans :<\/p>\n<ul>\n<li>des wallets logiciels compatibles Ethereum (<a href=\"\/fr\/visit\/bestwallet\" target=\"_blank\" rel=\"nofollow\">Best Wallet<\/a>, MetaMask, Trust Wallet),<\/li>\n<li>des wallets mat\u00e9riels comme Ledger ou Trezor,<\/li>\n<li>des plateformes d\u2019\u00e9change centralis\u00e9es.<\/li>\n<\/ul>\n<p>Lors d\u2019un transfert, il est essentiel d\u2019utiliser le <strong>r\u00e9seau Ethereum<\/strong>, sous peine de perdre d\u00e9finitivement vos tokens.<\/p>\n<h2><span id=\"glossaire\">Glossaire<\/span><\/h2>\n<ul>\n<li><strong>ERC20<\/strong> : norme technique pour les tokens fongibles sur Ethereum<\/li>\n<li><strong>Token<\/strong> : jeton num\u00e9rique repr\u00e9sentant une valeur ou un usage<\/li>\n<li><strong>Blockchain Ethereum<\/strong> : r\u00e9seau d\u00e9centralis\u00e9 supportant les smart contracts<\/li>\n<li><strong>Smart contract<\/strong> : programme autonome ex\u00e9cut\u00e9 sur la blockchain<\/li>\n<li><strong>Wallet<\/strong> : outil pour stocker et g\u00e9rer des cryptomonnaies<\/li>\n<li><strong>Gas<\/strong> : frais de transaction pay\u00e9s en ETH<\/li>\n<li><strong>Token fongible<\/strong> : token interchangeable avec un autre identique<\/li>\n<\/ul>\n<h2><span id=\"conclusion\">Conclusion<\/span><\/h2>\n<p>Le <strong>token ERC20<\/strong> est un pilier de l\u2019\u00e9cosyst\u00e8me Ethereum. Gr\u00e2ce \u00e0 une norme commune, il permet la cr\u00e9ation de tokens compatibles, simples \u00e0 utiliser et largement adopt\u00e9s.<\/p>\n<p>Comprendre le fonctionnement des tokens ERC20 vous aide ainsi \u00e0 mieux appr\u00e9hender la majorit\u00e9 des projets crypto actuels et \u00e0 utiliser les applications Ethereum de mani\u00e8re plus \u00e9clair\u00e9e.<\/p>\n<div style=\"background: #920047;margin: auto;width: 50%;text-align: center;padding: 8px;border-radius: 5px;background-image: linear-gradient(107deg,#930046,#59008a);color: white;padding-left: 1em;padding-right: 1em;font-size: 16px\">Acheter des tokens ERC-20<\/div>\n<h2><span id=\"faq_questions_frequentes_sur_les_tokens_erc20\">FAQ \u2013 Questions fr\u00e9quentes sur les tokens ERC20<\/span><\/h2>\n<div class=\"man_faq_sec\" itemscope itemtype=\"https:\/\/schema.org\/FAQPage\"><script>jQuery(document).ready(function() {\n\t\t\t\t\t\t\t\tjQuery(\".accordionButton\").click(function() {\n\t\t\t\t\t\t\t\t\tjQuery(\".accordionButton\").removeClass(\"on\");\n\t\t\t\t\t\t\t\t\tjQuery(\".accordionContent\").slideUp(\"normal\");\n\t\t\t\t\t\t\t\t\tif(jQuery(this).next().is(\":hidden\") == true) {\n\t\t\t\t\t\t\t\t\t\tjQuery(this).addClass(\"on\");\n\t\t\t\t\t\t\t\t\t\tjQuery(this).next().slideDown(\"normal\");\n\t\t\t\t\t\t\t\t\t } \n\t\t\t\t\t\t\t\t\t  \n\t\t\t\t\t\t\t\t });\n\t\t\t\t\t\t\t\t });\n\t\t\t\t\t\t\t<\/script><section class=\"ms_faq ms_card \"><div itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"><div class=\"accordionButton\"><h3 itemprop=\"name\">Qu\u2019est-ce qu\u2019un token ERC20, simplement ?<\/h3> <\/div>\n<div class=\"accordionContent\" itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"display:none;\"><p itemprop=\"text\">Un token ERC20 est un jeton num\u00e9rique cr\u00e9\u00e9 sur la blockchain Ethereum qui respecte une norme commune. Cette norme d\u00e9finit comment le token peut \u00eatre envoy\u00e9, re\u00e7u et utilis\u00e9. Gr\u00e2ce \u00e0 elle, les tokens ERC20 fonctionnent de la m\u00eame fa\u00e7on sur la plupart des wallets et plateformes.<\/p>\n                <\/div><\/div><\/section>\n<section class=\"ms_faq ms_card \"><div itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"><div class=\"accordionButton\"><h3 itemprop=\"name\">Un token ERC20 est-il une cryptomonnaie ?<\/h3> <\/div>\n<div class=\"accordionContent\" itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"display:none;\"><p itemprop=\"text\">Oui, mais avec une nuance. Un token ERC20 est une cryptomonnaie bas\u00e9e sur Ethereum, mais ce n\u2019est pas la blockchain elle-m\u00eame. L\u2019Ether (ETH) est la cryptomonnaie native d\u2019Ethereum, tandis que les tokens ERC20 sont cr\u00e9\u00e9s au-dessus d\u2019Ethereum via des smart contracts.<\/p>\n                <\/div><\/div><\/section>\n<section class=\"ms_faq ms_card \"><div itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"><div class=\"accordionButton\"><h3 itemprop=\"name\">Quelle est la diff\u00e9rence entre ETH et un token ERC20 ?<\/h3> <\/div>\n<div class=\"accordionContent\" itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"display:none;\"><p itemprop=\"text\">ETH sert \u00e0 payer les frais de transaction (le gas) et s\u00e9curiser le r\u00e9seau Ethereum. Les tokens ERC20 servent \u00e0 d\u2019autres usages : stablecoins, gouvernance, finance d\u00e9centralis\u00e9e, jeux, etc. M\u00eame pour envoyer un token ERC20, vous devez poss\u00e9der un peu d\u2019ETH pour payer le gas.<\/p>\n                <\/div><\/div><\/section>\n<section class=\"ms_faq ms_card \"><div itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"><div class=\"accordionButton\"><h3 itemprop=\"name\">O\u00f9 peut-on stocker des tokens ERC20 ?<\/h3> <\/div>\n<div class=\"accordionContent\" itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"display:none;\"><p itemprop=\"text\">Vous pouvez stocker vos tokens ERC20 dans :<\/p>\n<ul>\n<li>des wallets compatibles Ethereum (MetaMask, Trust Wallet),<\/li>\n<li>des wallets mat\u00e9riels (Ledger, Trezor),<\/li>\n<li>des plateformes d\u2019\u00e9change centralis\u00e9es.<\/li>\n<\/ul>\n<p>Il est donc important d\u2019utiliser le r\u00e9seau Ethereum lors des transferts, sous peine de perdre vos fonds.<\/p>\n                <\/div><\/div><\/section>\n<section class=\"ms_faq ms_card \"><div itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"><div class=\"accordionButton\"><h3 itemprop=\"name\">Les tokens ERC20 sont-ils s\u00fbrs ?<\/h3> <\/div>\n<div class=\"accordionContent\" itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"display:none;\"><p itemprop=\"text\">La norme ERC20 est largement \u00e9prouv\u00e9e, mais la s\u00e9curit\u00e9 d\u00e9pend surtout du smart contract du token. Un contrat mal con\u00e7u ou malveillant peut poser probl\u00e8me. Il est donc recommand\u00e9 de v\u00e9rifier le projet, le contrat et sa r\u00e9putation avant d\u2019interagir avec un token.<\/p>\n                <\/div><\/div><\/section>\n<section class=\"ms_faq ms_card \"><div itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"><div class=\"accordionButton\"><h3 itemprop=\"name\">Un token ERC20 est-il une cryptomonnaie ?<\/h3> <\/div>\n<div class=\"accordionContent\" itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"display:none;\"><p itemprop=\"text\">Oui. Il s\u2019agit d\u2019une cryptomonnaie construite sur Ethereum, mais diff\u00e9rente de l\u2019ETH, qui est la monnaie native du r\u00e9seau.<\/p>\n                <\/div><\/div><\/section>\n<section class=\"ms_faq ms_card \"><div itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"><div class=\"accordionButton\"><h3 itemprop=\"name\">Quelle est la diff\u00e9rence entre ETH et un token ERC20 ?<\/h3> <\/div>\n<div class=\"accordionContent\" itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"display:none;\"><p itemprop=\"text\">ETH sert en fait \u00e0 payer les frais de transaction et \u00e0 s\u00e9curiser le r\u00e9seau. Quant aux tokens ERC20, ils servent \u00e0 d\u2019autres usages : stablecoins, gouvernance, finance d\u00e9centralis\u00e9e, etc.<\/p>\n                <\/div><\/div><\/section>\n<section class=\"ms_faq ms_card \"><div itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"><div class=\"accordionButton\"><h3 itemprop=\"name\">Faut-il de l\u2019ETH pour envoyer un token ERC20 ?<\/h3> <\/div>\n<div class=\"accordionContent\" itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"display:none;\"><p itemprop=\"text\">Oui. M\u00eame si vous transf\u00e9rez uniquement des tokens, il faut payer des frais de gas en ETH.<\/p>\n                <\/div><\/div><\/section>\n<section class=\"ms_faq ms_card \"><div itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"><div class=\"accordionButton\"><h3 itemprop=\"name\">Les tokens ERC20 sont-ils tous fiables ?<\/h3> <\/div>\n<div class=\"accordionContent\" itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\" style=\"display:none;\"><p itemprop=\"text\">Non. La norme est fiable, mais chaque token d\u00e9pend de son smart contract et du s\u00e9rieux du projet<\/p>\n                <\/div><\/div><\/section>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Bienvenue dans ce guide sur le concept de token ERC20, ou Ethereum Request for Comment 20, la norme de&#8230;<\/p>\n","protected":false},"author":158,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"class_list":["post-16790","page","type-page","status-publish","hentry","entry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.8.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Qu&#039;est-ce qu&#039;un token ERC20 ? Guide d\u00e9butant<\/title>\n<meta name=\"description\" content=\"Cest quoi un token ERC20 ? 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