{"id":27321,"date":"2024-03-05T09:57:54","date_gmt":"2024-03-05T09:57:54","guid":{"rendered":"https:\/\/shopthemedetector.com\/blog\/?p=27321"},"modified":"2026-04-30T07:19:09","modified_gmt":"2026-04-30T07:19:09","slug":"shopify-cli-vs-theme-kit","status":"publish","type":"post","link":"https:\/\/shopthemedetector.com\/blog\/shopify-cli-vs-theme-kit\/","title":{"rendered":"Shopify CLI Vs Theme Kit"},"content":{"rendered":"<p>If you\u2019re choosing between Shopify CLI and Theme Kit for theme development in 2026, the decision is mostly made for you: <strong>Shopify officially deprecated Theme Kit in 2023<\/strong> and now directs all developers to Shopify CLI. Theme Kit still works for basic operations on existing projects, but it no longer receives feature updates, won\u2019t support newer Shopify features, and Shopify has stated it will eventually stop functioning entirely. This guide covers what that means in practice, the side-by-side comparison, the commands you\u2019ll actually use, and how to migrate if you\u2019re still on Theme Kit.<\/p>\n<div class=\"key-takeaways\"><div class=\"takeaways-title h2\">Key Takeaways<\/div><div class=\"takeaway-item\"><div class=\"takeaway-number\">1<\/div><div class=\"takeaway-text\">Theme Kit is deprecated as of 2023 - Shopify CLI is now the official theme development tool, and all new projects should use it.<\/div><\/div><div class=\"takeaway-item\"><div class=\"takeaway-number\">2<\/div><div class=\"takeaway-text\">Theme Kit still works for existing projects but receives no new features and lacks support for Online Store 2.0 capabilities like JSON templates and app blocks.<\/div><\/div><div class=\"takeaway-item\"><div class=\"takeaway-number\">3<\/div><div class=\"takeaway-text\">Shopify CLI provides superior workflow tools: hot reload, real-time previews, theme check, and a faster local development server.<\/div><\/div><div class=\"takeaway-item\"><div class=\"takeaway-number\">4<\/div><div class=\"takeaway-text\">Migrating from Theme Kit to Shopify CLI is straightforward - install the CLI, authenticate, and use shopify theme dev or shopify theme pull to start working with existing themes.<\/div><\/div><\/div>\n<h2>Theme Kit Is Deprecated - What That Means for You<\/h2>\n<p>In 2023, Shopify officially announced that Theme Kit (also known as themekit, the Go-based CLI tool that developers used for years) is no longer being actively developed. The official Shopify documentation now directs all theme developers to use Shopify CLI instead.<\/p>\n<p><strong>What still works on Theme Kit:<\/strong><\/p>\n<ul>\n<li>Pushing and pulling theme files to and from existing Shopify stores.<\/li>\n<li>Watching for local file changes and syncing them.<\/li>\n<li>Working with themes that don\u2019t use Online Store 2.0 features.<\/li>\n<\/ul>\n<p><strong>What does NOT work on Theme Kit:<\/strong><\/p>\n<ul>\n<li>Local theme preview with hot reload - Theme Kit relies on a polling-and-sync model that\u2019s much slower than Shopify CLI\u2019s local dev server.<\/li>\n<li>Full support for Online Store 2.0 features - JSON templates, app blocks, theme app extensions, and section-rendering API endpoints work better through Shopify CLI.<\/li>\n<li>Modern theme check rules - Shopify\u2019s theme-check linter receives updates only through the CLI.<\/li>\n<li>Future Shopify features. Anything new from Shopify\u2019s theme platform from 2024 onward will be CLI-only.<\/li>\n<\/ul>\n<p><strong>Should you migrate immediately?<\/strong> If you\u2019re starting a new theme project, yes - use Shopify CLI from day one. If you have an existing project on Theme Kit and it\u2019s not broken, you can keep using Theme Kit short-term. But the migration is small (covered later in this guide) and the longer you wait, the more deprecated tooling debt you accumulate.<\/p>\n<h2>Quick Comparison Table<\/h2>\n<table>\n<thead>\n<tr>\n<th>Feature<\/th>\n<th>Shopify CLI<\/th>\n<th>Theme Kit<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Status<\/td>\n<td>Active, Shopify-recommended<\/td>\n<td>Deprecated since 2023<\/td>\n<\/tr>\n<tr>\n<td>Install<\/td>\n<td><code>npm install -g @shopify\/cli<\/code><\/td>\n<td>Download binary from GitHub<\/td>\n<\/tr>\n<tr>\n<td>Local dev server with hot reload<\/td>\n<td>Yes - <code>shopify theme dev<\/code><\/td>\n<td>No (file-watch-and-push only)<\/td>\n<\/tr>\n<tr>\n<td>Theme check (linting)<\/td>\n<td>Yes - actively updated<\/td>\n<td>Limited, frozen ruleset<\/td>\n<\/tr>\n<tr>\n<td>Online Store 2.0 support<\/td>\n<td>Full<\/td>\n<td>Partial<\/td>\n<\/tr>\n<tr>\n<td>App development<\/td>\n<td>Yes (themes + apps)<\/td>\n<td>Themes only<\/td>\n<\/tr>\n<tr>\n<td>Authentication<\/td>\n<td>OAuth via browser<\/td>\n<td>API password (less secure)<\/td>\n<\/tr>\n<tr>\n<td>Future development<\/td>\n<td>Active<\/td>\n<td>None<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Migrating From Theme Kit to Shopify CLI<\/h2>\n<p>If you have an existing Theme Kit project, here\u2019s the practical migration path. The whole process takes about 15 minutes per theme.<\/p>\n<p><strong>Step 1 - Install Shopify CLI.<\/strong> If you don\u2019t already have it: <code>npm install -g @shopify\/cli<\/code>. Verify with <code>shopify version<\/code>.<\/p>\n<p><strong>Step 2 - Authenticate.<\/strong> From your theme directory, run <code>shopify theme dev --store your-store.myshopify.com<\/code>. The first time, it will open a browser window for OAuth login. Theme Kit\u2019s API-password approach is replaced - you authenticate once with your Shopify account.<\/p>\n<p><strong>Step 3 - Confirm the theme structure is compatible.<\/strong> Theme Kit and Shopify CLI use the same theme folder structure (assets, config, layout, locales, sections, snippets, templates). No file restructuring is needed for the migration itself.<\/p>\n<p><strong>Step 4 - Replace your Theme Kit commands.<\/strong> Practical mapping:<\/p>\n<ul>\n<li><code>theme watch<\/code> \u2192 <code>shopify theme dev<\/code><\/li>\n<li><code>theme deploy<\/code> \u2192 <code>shopify theme push<\/code><\/li>\n<li><code>theme download<\/code> \u2192 <code>shopify theme pull<\/code><\/li>\n<li><code>theme open<\/code> \u2192 <code>shopify theme open<\/code><\/li>\n<li><code>theme new<\/code> \u2192 <code>shopify theme init<\/code><\/li>\n<\/ul>\n<p><strong>Step 5 - Update your <code>config.yml<\/code>.<\/strong> Theme Kit used a <code>config.yml<\/code> in the theme root for store URL and API password. Shopify CLI doesn\u2019t need this file at all - store identity is handled through the OAuth session and command flags. You can delete the config file once you\u2019re confident the CLI workflow is working.<\/p>\n<p><strong>Step 6 - Update your CI\/CD or deployment scripts.<\/strong> If you\u2019re using Theme Kit in GitHub Actions, GitLab CI, or any deploy automation, swap the binary download for the npm install plus update the commands. Shopify also publishes a GitHub Action that wraps the CLI for theme deployment.<\/p>\n<h2>Essential Shopify CLI Commands for Theme Developers<\/h2>\n<p>The day-to-day commands you\u2019ll run most often:<\/p>\n<p><strong><code>shopify theme dev<\/code><\/strong> - starts a local development server with hot reload. Edit any theme file and the browser updates immediately. This is the headline feature that Theme Kit can\u2019t match.<\/p>\n<p><strong><code>shopify theme push<\/code><\/strong> - uploads your local theme to a development theme on the connected store. Add <code>--unpublished<\/code> to push to a brand-new unpublished theme, or <code>--theme=THEME_ID<\/code> to push to a specific existing theme.<\/p>\n<p><strong><code>shopify theme pull<\/code><\/strong> - downloads a theme from your store to your local directory. Use this to sync changes another developer made via the theme editor.<\/p>\n<p><strong><code>shopify theme check<\/code><\/strong> - lints your theme files for errors, deprecated syntax, and Liquid issues. Run before pushing to catch problems early.<\/p>\n<p><strong><code>shopify theme list<\/code><\/strong> - lists all themes on the connected store with their IDs, useful when you need to push to a specific theme.<\/p>\n<p><strong><code>shopify theme init<\/code><\/strong> - creates a new theme project from Shopify\u2019s Dawn theme starter. Faster than cloning a repo manually.<\/p>\n<p><strong><code>shopify theme open<\/code><\/strong> - opens the current theme in the Shopify admin\u2019s theme editor in your browser.<\/p>\n<p><strong><code>shopify theme share<\/code><\/strong> - generates a temporary preview URL for your unpublished theme that anyone can access without authentication. Useful for sharing work-in-progress with clients.<\/p>\n<h2>Workflow Comparison: Speed and Feedback<\/h2>\n<p><strong>Shopify CLI workflow.<\/strong> Shopify CLI runs a local development server. You edit a Liquid file in your editor, the CLI detects the change, and the browser updates in milliseconds - no manual push, no waiting for sync. The <code>theme check<\/code> linter catches errors before you push to production. For solo developers and small teams who prioritize speed, this workflow is significantly faster than anything Theme Kit can do.<\/p>\n<p><strong>Theme Kit workflow (legacy).<\/strong> Theme Kit watches local files and pushes changes to your Shopify store as you save. You then refresh the browser to see changes. The round-trip time is several seconds even on a fast connection. Error detection is limited and most problems surface only after you push to production.<\/p>\n<h2>Authentication and Security<\/h2>\n<p>Theme Kit used API passwords stored in <code>config.yml<\/code> files. Anyone who got that file got full access to your store, and rotating credentials meant updating every developer\u2019s local config. Shopify CLI replaced this with OAuth - you authenticate through the browser once, the credentials never sit in a file, and revoking access is one click in the Shopify admin. This is materially better for any team larger than one person.<\/p>\n<h2>Troubleshooting Tips<\/h2>\n<p><strong>If <code>shopify theme dev<\/code> hangs on startup:<\/strong> ensure your store URL is correct (no trailing slash, includes <code>.myshopify.com<\/code>) and that your account has access to the store. The CLI will print a clear error if authentication fails.<\/p>\n<p><strong>If hot reload stops working mid-session:<\/strong> restart the dev server. This is rare but happens after large structural changes (adding new sections, renaming templates).<\/p>\n<p><strong>If <code>theme check<\/code> reports errors you don\u2019t agree with:<\/strong> the linter has a config file at <code>.theme-check.yml<\/code> in your theme root where you can disable specific rules. Don\u2019t disable broadly - the rules exist for good reasons - but it\u2019s reasonable to silence one or two that don\u2019t apply to your project.<\/p>\n<p><strong>If you need to fall back to Theme Kit for a specific reason:<\/strong> it still installs and runs, but document why and plan the eventual migration. \u201cWe need it for X\u201d is fine; \u201cwe\u2019re avoiding Shopify CLI on principle\u201d stops being defensible as more Shopify features become CLI-only.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>If you\u2019re choosing between Shopify CLI and Theme Kit for theme development in 2026, the decision is mostly made for you: Shopify officially deprecated Theme Kit in 2023 and now\u2026<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_yoast_wpseo_title":"Shopify CLI vs Theme Kit (2026): Which to Use Now Theme Kit Is Deprecated","_yoast_wpseo_metadesc":"Shopify CLI vs Theme Kit in 2026 \u2014 Theme Kit was officially deprecated. Here's what still works, when to migrate, the commands you need, and the comparison table.","_yoast_wpseo_metatitle":"","footnotes":""},"categories":[13],"tags":[],"class_list":{"0":"post-27321","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-shopify-store-set-up"},"acf":{"breadcrumbs":[{"postpage":[27006]}],"conclusion":"<h2>Conclusion: Shopify CLI Vs Theme Kit<\/h2>\r\nUnderstanding the differences between Shopify CLI and Theme Kit is essential for enhancing your Shopify theme and app development processes. While Theme Kit is excellent for theme building and deployment, Shopify CLI offers a more extensive range of functionalities, including app development capabilities.\r\n\r\nBy carefully assessing your project needs and preferences, you can select the tool that aligns best with your requirements and boosts your overall development efficiency. Make a thoughtful choice to streamline your development journey and achieve success in Shopify development.","repeater":null,"filter":false,"attach_to_post":[9736],"author_bio":false,"custom_author_bio":false,"author_bio_name":"","author_bio_info":"","_meta_excerpt_title":"","meta_excerpt":"","trust_signals":{"expert_reviewed":true,"items_tested":""},"key_statistics":null,"key_takeaways":{"takeaways_items":null},"required_subtopics":null,"context_block":{"context_heading":"","context_excerpt":"","context_content":""},"methodology":{"methodology_heading":"","methodology_content":""},"comparison_table":"","mid_content_cta":{"cta_text":"","cta_button_text":"","cta_link":""}},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Shopify CLI vs Theme Kit (2026): Which to Use Now Theme Kit Is Deprecated<\/title>\n<meta name=\"description\" content=\"Shopify CLI vs Theme Kit in 2026 \u2014 Theme Kit was officially deprecated. 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