Developer Tools
5,662 totalBrowse all extensions in Developer Tools. Filter by popularity, version support and language.
SEOquake: On-Page SEO Checker
Run SEO audits, check technical issues, analyze links and keyword density, and see Semrush metrics as you browse and search.
- Version
- 4.3.1
- Size
- 1.81 MiB
- Downloads
- 44
Unicode Inspector
Break down strings into unicode codepoints
- Version
- 2.0.2
- Size
- 464.77 KiB
- Downloads
- 43
Cookie
Change a specified cookie from one domain to another.
- Version
- 0.0.3
- Size
- 19.56 KiB
- Downloads
- 41
Cookie Editor
The most powerful Cookie Manager & Editor for Chrome: bulk operations, domain groups, automation rules, profiles & analytics.
- Version
- 3.5.3
- Size
- 331.46 KiB
- Downloads
- 40
Antigravity Browser Extension
The Antigravity Browser Extension is required for the Antigravity Agent to access the web.
- Version
- 1.11.2
- Size
- 124.74 KiB
- Downloads
- 40
JSON Viewer
Makes JSON response easy to read.
- Version
- 2.1.0
- Size
- 27.98 KiB
- Downloads
- 39
GoRes
An URL redirect tool. Learn from ReRes and Fiddler. Thanks for their great work, especially ReRes.
- Version
- 1.4.0
- Size
- 226.42 KiB
- Downloads
- 39
Yet Another REST Client
YARC (Yet Another REST Client) is an easy-to-use REST Client. Use it to develop, test and debug RESTful APIs.
- Version
- 1.3.0
- Size
- 3.86 MiB
- Downloads
- 39
Ignore X-Frame headers
Drops X-Frame-Options and Content-Security-Policy HTTP response headers, allowing all pages to be iframed.
- Version
- 2.0.0
- Size
- 9.03 KiB
- Downloads
- 39
ComfortQuery — Elasticsearch tools & OpenSearch client
Elasticsearch & OpenSearch query builder and REST client: cluster health, shards, mappings, node stats. Private, no cloud.
- Version
- 2.2.13
- Size
- 938.87 KiB
- Downloads
- 38
Enhanced Vue.js devtools
This add-on is built on the top of Vue.js devtools 5.3.3. It Adds a panel for checking duplicate keys
- Version
- 1.3.1
- Size
- 896.10 KiB
- Downloads
- 37
清除缓存和Cookie - Clear cache and cookies
Clear one website's cache and cookies with one click. Easily manage and delete cache and cookies to save time clearing data.
- Version
- 2.3.2
- Size
- 297.05 KiB
- Downloads
- 37
OWASP Penetration Testing Kit
OWASP Penetration Testing Kit
- Version
- 9.9.9
- Size
- 10.50 MiB
- Downloads
- 37
Proxy Switch by Proxy-Hub.com
Proxy Swtich v3 is an ultimate proxy manager for proxy rotation with all needed features.
- Version
- 3
- Size
- 345.10 KiB
- Downloads
- 36
GitHub Web IDE
Open GitHub repositories in online web IDE
- Version
- 2.0.11
- Size
- 116.66 KiB
- Downloads
- 35
Foxified
Emulate firefox extensions in Chrome, Opera and other Chromium based browsers
- Version
- 2.2.0
- Size
- 709.67 KiB
- Downloads
- 34
JSON Viewer
Port of Firefox's JSON Viewer
- Version
- 2.2.0
- Size
- 141.32 KiB
- Downloads
- 34
daily.dev | Where developers discover what's next
Developer news, personalized to your stack, in every new tab. Join 400,000+ developers. Free and open source.
- Version
- 3.47.18
- Size
- 4.10 MiB
- Downloads
- 34
Link Redirect Trace
The all-in-one redirect path analyzer. It also analyzes protocol headers, REL-canonicals, robots.txt, backlink power, and trust!
- Version
- 1.1.5.27
- Size
- 550.01 KiB
- Downloads
- 34
Request Interceptor
Intercept Requests and add custom rules to modify request/response headers, block/redirect requests, modify query params.
- Version
- 2.0.1
- Size
- 2.04 MiB
- Downloads
- 33
Page Edit
Make any webpage into a content editable document and modify it via toolbar popup!
- Version
- 0.1.9
- Size
- 241.15 KiB
- Downloads
- 33
Markdown Editor for Chrome™
Create and view Markdown files easily from anywhere with our simple, GitHub-flavored markdown editor.
- Version
- 2026.7.30
- Size
- 1.93 MiB
- Downloads
- 33
EditThisCookie (fork)
EditThisCookie (fork) is a cookie manager. You can add, delete, edit, search, protect and block cookies!
- Version
- 1.7.11
- Size
- 1.58 MiB
- Downloads
- 33
Vue.js devtools (beta)
DevTools browser extension for Vue.js
- Version
- 7.0.0.12
- Size
- 2.54 MiB
- Downloads
- 33
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