{"id":3132,"date":"2025-07-02T14:05:08","date_gmt":"2025-07-02T14:05:08","guid":{"rendered":"https:\/\/www.devopssupport.in\/blog\/?p=3132"},"modified":"2025-07-02T14:05:09","modified_gmt":"2025-07-02T14:05:09","slug":"jwt-json-web-token-vs-oauth-2-0","status":"publish","type":"post","link":"https:\/\/www.devopssupport.in\/blog\/jwt-json-web-token-vs-oauth-2-0\/","title":{"rendered":"JWT (JSON Web Token) vs OAuth 2.0"},"content":{"rendered":"\n<p>Both JWT and OAuth 2.0 are used for managing authentication and authorization, but they serve different purposes and work in distinct ways.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>1. Purpose:<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>JWT (JSON Web Token):<\/strong>\n<ul class=\"wp-block-list\">\n<li>JWT is a <strong>compact, URL-safe<\/strong> token format used to securely transmit information between parties as a JSON object.<\/li>\n\n\n\n<li>It is typically used to <strong>authenticate<\/strong> users and <strong>share information<\/strong> between services. It can carry information about a user, session, or any other kind of data.<\/li>\n\n\n\n<li>JWT can be used independently or in conjunction with other protocols, such as OAuth.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>OAuth 2.0:<\/strong>\n<ul class=\"wp-block-list\">\n<li>OAuth 2.0 is a <strong>framework<\/strong> for authorization. It allows a user to grant third-party applications limited access to their resources without sharing their credentials.<\/li>\n\n\n\n<li>OAuth defines <strong>roles<\/strong> (Resource Owner, Client, Authorization Server, and Resource Server) and <strong>flows<\/strong> (Authorization Code, Implicit, Client Credentials, etc.) to allow different types of applications (web, mobile, etc.) to access user data securely.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>2. Role:<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>JWT:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Primarily used to <strong>represent<\/strong> claims or information in a compact and self-contained format.<\/li>\n\n\n\n<li>It&#8217;s a <strong>token<\/strong> that can carry authentication and authorization data. Once the user logs in, a JWT is often issued and used in subsequent API requests to verify the user&#8217;s identity.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>OAuth 2.0:<\/strong>\n<ul class=\"wp-block-list\">\n<li>OAuth is a protocol that <strong>delegates<\/strong> access to resources by issuing tokens (which could be JWT) to clients, allowing the client to access the resource on behalf of the user.<\/li>\n\n\n\n<li>OAuth 2.0 <strong>does not define the format<\/strong> of the access token, meaning the access token could be in JWT format, but it could also be other formats (like opaque tokens).<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>3. Token Format:<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>JWT:<\/strong>\n<ul class=\"wp-block-list\">\n<li>A JWT is a <strong>token format<\/strong> itself. It consists of three parts:\n<ul class=\"wp-block-list\">\n<li><strong>Header<\/strong> (metadata about the token),<\/li>\n\n\n\n<li><strong>Payload<\/strong> (the claims or data being transmitted),<\/li>\n\n\n\n<li><strong>Signature<\/strong> (used to verify the integrity of the token and ensure it hasn&#8217;t been tampered with).<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>JWT can be used independently for various purposes like <strong>authentication<\/strong>, <strong>information exchange<\/strong>, etc.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>OAuth 2.0:<\/strong>\n<ul class=\"wp-block-list\">\n<li>OAuth 2.0 is a <strong>protocol<\/strong> for authorization. It doesn&#8217;t dictate the token format, so the access token could be a JWT, an opaque token, or another custom format.<\/li>\n\n\n\n<li>OAuth provides the <strong>framework<\/strong> to obtain and validate these tokens, but doesn&#8217;t specify how the token&#8217;s content is structured.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>4. Authentication vs Authorization:<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>JWT:<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>Authentication<\/strong>: JWT is often used for <strong>authentication<\/strong>, particularly in the context of a web application or API. Once a user is authenticated, a JWT can be sent to the client (e.g., browser or mobile) and used for subsequent requests to prove that the user is authenticated.<\/li>\n\n\n\n<li>While it can carry <strong>authorization data<\/strong> (like roles or permissions), JWT itself is more commonly used to confirm a user&#8217;s identity.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>OAuth 2.0:<\/strong>\n<ul class=\"wp-block-list\">\n<li><strong>Authorization<\/strong>: OAuth 2.0 is specifically designed for <strong>authorization<\/strong>. It allows users to grant applications (clients) access to their resources (like Google or Facebook data) without sharing their login credentials.<\/li>\n\n\n\n<li>OAuth 2.0 <strong>does not authenticate users<\/strong> directly. Instead, it allows third-party apps to access a user&#8217;s data using access tokens, usually issued by an Authorization Server.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>5. Flow and Usage:<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>JWT:<\/strong>\n<ul class=\"wp-block-list\">\n<li>After a user successfully logs in (typically using credentials like username and password), a <strong>JWT<\/strong> is issued by the authentication server.<\/li>\n\n\n\n<li>The JWT can then be included in subsequent API requests, usually in the HTTP <strong>Authorization header<\/strong> (using the <code>Bearer<\/code> scheme), allowing the server to verify the user&#8217;s identity without needing to check a database each time.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>OAuth 2.0:<\/strong>\n<ul class=\"wp-block-list\">\n<li>In an OAuth flow, the user logs in and grants permission to a client (application) to access resources.<\/li>\n\n\n\n<li>OAuth 2.0 handles the <strong>authorization<\/strong> step and issues an <strong>access token<\/strong> (which could be a JWT). This access token is then used by the client to make requests to the resource server.<\/li>\n\n\n\n<li>OAuth defines several different &#8220;flows&#8221; to handle various situations, such as client credentials or user consent.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>6. Token Expiry and Revocation:<\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>JWT:<\/strong>\n<ul class=\"wp-block-list\">\n<li>JWTs often have an expiration time (usually defined within the payload in the <code>exp<\/code> field). Once the token expires, the user needs to reauthenticate or refresh the token.<\/li>\n\n\n\n<li>JWTs cannot be <strong>revoked<\/strong> (unless you implement a blacklisting mechanism). They remain valid until they expire.<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>OAuth 2.0:<\/strong>\n<ul class=\"wp-block-list\">\n<li>OAuth 2.0 tokens (like access tokens) also have an expiration time. However, OAuth allows for <strong>refresh tokens<\/strong> that can be used to obtain a new access token without re-authenticating the user.<\/li>\n\n\n\n<li>OAuth 2.0 <strong>supports revocation<\/strong>. Access tokens can be revoked by the authorization server, providing more control over token lifecycle management.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Summary of Differences:<\/strong><\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Feature<\/th><th><strong>JWT<\/strong><\/th><th><strong>OAuth 2.0<\/strong><\/th><\/tr><\/thead><tbody><tr><td><strong>Purpose<\/strong><\/td><td>Token format for authentication and data transmission.<\/td><td>Authorization framework.<\/td><\/tr><tr><td><strong>Role<\/strong><\/td><td>Token for identity assertion.<\/td><td>Protocol for granting access to resources.<\/td><\/tr><tr><td><strong>Token Format<\/strong><\/td><td>Defined (Header, Payload, Signature).<\/td><td>Token format is unspecified (could be JWT).<\/td><\/tr><tr><td><strong>Primary Use<\/strong><\/td><td>Authentication.<\/td><td>Authorization.<\/td><\/tr><tr><td><strong>Authentication\/Authorization<\/strong><\/td><td>Primarily authentication. Can carry authorization data.<\/td><td>Primarily authorization (delegated access).<\/td><\/tr><tr><td><strong>Revocation<\/strong><\/td><td>Not inherently supported.<\/td><td>Tokens can be revoked.<\/td><\/tr><tr><td><strong>Expiration<\/strong><\/td><td>Expiry defined in the token.<\/td><td>Expiry + refresh tokens.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>In summary, <strong>JWT<\/strong> is a <strong>token format<\/strong>, whereas <strong>OAuth 2.0<\/strong> is an <strong>authorization framework<\/strong>. OAuth 2.0 can use JWT as the access token, but JWT on its own is used for different use cases, primarily for authentication and information sharing.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Both JWT and OAuth 2.0 are used for managing authentication and authorization, but they serve different purposes and work in distinct ways. 1. Purpose: 2. Role: 3&#8230;. <\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3132","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>JWT (JSON Web Token) vs OAuth 2.0 - DevOps Support<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.devopssupport.in\/blog\/jwt-json-web-token-vs-oauth-2-0\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"JWT (JSON Web Token) vs OAuth 2.0 - DevOps Support\" \/>\n<meta property=\"og:description\" content=\"Both JWT and OAuth 2.0 are used for managing authentication and authorization, but they serve different purposes and work in distinct ways. 1. Purpose: 2. Role: 3....\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.devopssupport.in\/blog\/jwt-json-web-token-vs-oauth-2-0\/\" \/>\n<meta property=\"og:site_name\" content=\"DevOps Support\" \/>\n<meta property=\"article:published_time\" content=\"2025-07-02T14:05:08+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-07-02T14:05:09+00:00\" \/>\n<meta name=\"author\" content=\"Avinash kumar\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Avinash kumar\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.devopssupport.in\/blog\/jwt-json-web-token-vs-oauth-2-0\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.devopssupport.in\/blog\/jwt-json-web-token-vs-oauth-2-0\/\"},\"author\":{\"name\":\"Avinash kumar\",\"@id\":\"https:\/\/www.devopssupport.in\/blog\/#\/schema\/person\/ee29c62455ded10b2424fb9ca585e347\"},\"headline\":\"JWT (JSON Web Token) vs OAuth 2.0\",\"datePublished\":\"2025-07-02T14:05:08+00:00\",\"dateModified\":\"2025-07-02T14:05:09+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.devopssupport.in\/blog\/jwt-json-web-token-vs-oauth-2-0\/\"},\"wordCount\":826,\"commentCount\":0,\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.devopssupport.in\/blog\/jwt-json-web-token-vs-oauth-2-0\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.devopssupport.in\/blog\/jwt-json-web-token-vs-oauth-2-0\/\",\"url\":\"https:\/\/www.devopssupport.in\/blog\/jwt-json-web-token-vs-oauth-2-0\/\",\"name\":\"JWT (JSON Web Token) vs OAuth 2.0 - DevOps Support\",\"isPartOf\":{\"@id\":\"https:\/\/www.devopssupport.in\/blog\/#website\"},\"datePublished\":\"2025-07-02T14:05:08+00:00\",\"dateModified\":\"2025-07-02T14:05:09+00:00\",\"author\":{\"@id\":\"https:\/\/www.devopssupport.in\/blog\/#\/schema\/person\/ee29c62455ded10b2424fb9ca585e347\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.devopssupport.in\/blog\/jwt-json-web-token-vs-oauth-2-0\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.devopssupport.in\/blog\/jwt-json-web-token-vs-oauth-2-0\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.devopssupport.in\/blog\/jwt-json-web-token-vs-oauth-2-0\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.devopssupport.in\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"JWT (JSON Web Token) vs OAuth 2.0\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.devopssupport.in\/blog\/#website\",\"url\":\"https:\/\/www.devopssupport.in\/blog\/\",\"name\":\"DevOps Support\",\"description\":\"DevOps Support | DevSecOps Support | SRE Support | MLOps SRE Support\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.devopssupport.in\/blog\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.devopssupport.in\/blog\/#\/schema\/person\/ee29c62455ded10b2424fb9ca585e347\",\"name\":\"Avinash kumar\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.devopssupport.in\/blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/db01f522798b98f8f474a1dfdd200df1c0e7ada232088d7a8192e14919e4de0a?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/db01f522798b98f8f474a1dfdd200df1c0e7ada232088d7a8192e14919e4de0a?s=96&d=mm&r=g\",\"caption\":\"Avinash kumar\"},\"sameAs\":[\"www.linkedin.com\/in\/avinash-kumar-150791240\"],\"url\":\"https:\/\/www.devopssupport.in\/blog\/author\/avinash\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"JWT (JSON Web Token) vs OAuth 2.0 - DevOps Support","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.devopssupport.in\/blog\/jwt-json-web-token-vs-oauth-2-0\/","og_locale":"en_US","og_type":"article","og_title":"JWT (JSON Web Token) vs OAuth 2.0 - DevOps Support","og_description":"Both JWT and OAuth 2.0 are used for managing authentication and authorization, but they serve different purposes and work in distinct ways. 1. Purpose: 2. Role: 3....","og_url":"https:\/\/www.devopssupport.in\/blog\/jwt-json-web-token-vs-oauth-2-0\/","og_site_name":"DevOps Support","article_published_time":"2025-07-02T14:05:08+00:00","article_modified_time":"2025-07-02T14:05:09+00:00","author":"Avinash kumar","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Avinash kumar","Est. reading time":"4 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.devopssupport.in\/blog\/jwt-json-web-token-vs-oauth-2-0\/#article","isPartOf":{"@id":"https:\/\/www.devopssupport.in\/blog\/jwt-json-web-token-vs-oauth-2-0\/"},"author":{"name":"Avinash kumar","@id":"https:\/\/www.devopssupport.in\/blog\/#\/schema\/person\/ee29c62455ded10b2424fb9ca585e347"},"headline":"JWT (JSON Web Token) vs OAuth 2.0","datePublished":"2025-07-02T14:05:08+00:00","dateModified":"2025-07-02T14:05:09+00:00","mainEntityOfPage":{"@id":"https:\/\/www.devopssupport.in\/blog\/jwt-json-web-token-vs-oauth-2-0\/"},"wordCount":826,"commentCount":0,"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.devopssupport.in\/blog\/jwt-json-web-token-vs-oauth-2-0\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.devopssupport.in\/blog\/jwt-json-web-token-vs-oauth-2-0\/","url":"https:\/\/www.devopssupport.in\/blog\/jwt-json-web-token-vs-oauth-2-0\/","name":"JWT (JSON Web Token) vs OAuth 2.0 - DevOps Support","isPartOf":{"@id":"https:\/\/www.devopssupport.in\/blog\/#website"},"datePublished":"2025-07-02T14:05:08+00:00","dateModified":"2025-07-02T14:05:09+00:00","author":{"@id":"https:\/\/www.devopssupport.in\/blog\/#\/schema\/person\/ee29c62455ded10b2424fb9ca585e347"},"breadcrumb":{"@id":"https:\/\/www.devopssupport.in\/blog\/jwt-json-web-token-vs-oauth-2-0\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.devopssupport.in\/blog\/jwt-json-web-token-vs-oauth-2-0\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.devopssupport.in\/blog\/jwt-json-web-token-vs-oauth-2-0\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.devopssupport.in\/blog\/"},{"@type":"ListItem","position":2,"name":"JWT (JSON Web Token) vs OAuth 2.0"}]},{"@type":"WebSite","@id":"https:\/\/www.devopssupport.in\/blog\/#website","url":"https:\/\/www.devopssupport.in\/blog\/","name":"DevOps Support","description":"DevOps Support | DevSecOps Support | SRE Support | MLOps SRE Support","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.devopssupport.in\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/www.devopssupport.in\/blog\/#\/schema\/person\/ee29c62455ded10b2424fb9ca585e347","name":"Avinash kumar","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.devopssupport.in\/blog\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/db01f522798b98f8f474a1dfdd200df1c0e7ada232088d7a8192e14919e4de0a?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/db01f522798b98f8f474a1dfdd200df1c0e7ada232088d7a8192e14919e4de0a?s=96&d=mm&r=g","caption":"Avinash kumar"},"sameAs":["www.linkedin.com\/in\/avinash-kumar-150791240"],"url":"https:\/\/www.devopssupport.in\/blog\/author\/avinash\/"}]}},"_links":{"self":[{"href":"https:\/\/www.devopssupport.in\/blog\/wp-json\/wp\/v2\/posts\/3132","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.devopssupport.in\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.devopssupport.in\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.devopssupport.in\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.devopssupport.in\/blog\/wp-json\/wp\/v2\/comments?post=3132"}],"version-history":[{"count":2,"href":"https:\/\/www.devopssupport.in\/blog\/wp-json\/wp\/v2\/posts\/3132\/revisions"}],"predecessor-version":[{"id":3134,"href":"https:\/\/www.devopssupport.in\/blog\/wp-json\/wp\/v2\/posts\/3132\/revisions\/3134"}],"wp:attachment":[{"href":"https:\/\/www.devopssupport.in\/blog\/wp-json\/wp\/v2\/media?parent=3132"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.devopssupport.in\/blog\/wp-json\/wp\/v2\/categories?post=3132"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.devopssupport.in\/blog\/wp-json\/wp\/v2\/tags?post=3132"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}