According to AlphaMoat, the Developer Tools category tracks 627 AI browser extensions; the most-installed is Similarweb (1.0M users). Ranked by install count, listing extensions with 1,000+ users.
# Extension Publisher Users Rating
1 Similarweb Instant website analysis, AI traffic insights, and SEO metrics at your fingertips.
similarweb 1.0M ★ 4.6 2 OCR A powerful optical character recognition (OCR) extension to capture and convert images to text
- 200.0K ★ 4.1 3 Ui.Vision Task and UI test automation with Computer Vision/OCR. Ui.Vision combines browser automation and desktop automation.
ui 200.0K ★ 3.9 6 ChatGPT LightSession Trim heavy ChatGPT threads client-side by keeping only the last N messages along the active path. Toggle and configure via popup.
- 50.0K ★ 4.8 7 Windsurf Plugin Your modern coding superpower. Get code completions in Colab and more.
codeium 50.0K ★ 4.8 8 GPT for Ecom Free Open AI ChatGPT and AI writer tool for e-commerce to generate compelling Product listing content easily
- 20.0K ★ 3.6 9 Testing Toolkit Redefine manual testing with best-in-class tools, supercharged with AI. JSON Formatter, Cache Manager, Responsive testing & more
BrowserStack 20.0K ★ 4.9 10 WizExtend Get real-time security alerts and context-aware insights in your cloud portal.
wiz 20.0K ★ 5.0 11 店小宝-货源比价助手 电商商家必备神器，多种便捷功能永久免费使用！支持截图搜同款，1688、淘宝、亚马逊、SHEIN等全网平台比价找货源，商品图片/视频一键下载，多维度信息一键导出...
dianxiaobao 20.0K ★ 4.0 12 TestCraft TestCraft - GPT-Powered Test Idea Generator & Automated Test Creator
- 10.0K ★ 3.5 15 Web Capture Capture elements from the web. Convert elements into interactive React components and edit manually or with AI on a canvas.
magicpath 10.0K ★ 4.5 16 MetaSuites Integrating 30+ popular Web3 and AI Tools, 300M+ Address Labels, and the Fund Flow Map into a single extension.
blocksec 10.0K ★ 4.9 17 Agenty Web scraping software with AI to extract data from websites using point-and-click extension to get data from web crawling
AGENTY ANALYTICS 10.0K ★ 4.1 19 Claude Session Key Copy your Claude.ai session key to clipboard with one click. Companion for Claude Usage Widget.
- 10.0K ★ 4.4 20 GitIngest Turn any Git repository into a prompt-friendly text ingest for LLMs. By replacing hub with ingest to access a coresponding digest.
Coderamp 9.0K ★ 4.9 26 prajnAM This extension is used for auto invigilation of recruitment tests attempted by candidates from remote locations. The tests are…
geeekassess 5.0K ★ 3.4 28 Web to MCP A Chrome extension that captures website components and sends them to AI coding assistants like Cursor, Claude Code, Codex, etc
web-to-mcp 4.0K ★ 3.7 29 Copy as Markdown for AI A little extension that lets you easily copy sites into LLM optimized Markdown.
Convert web pages to LLM-optimized Markdown + YAML…
- 4.0K ★ 5.0 31 Claude Token Counter Shows ~token count, cache timer, and native session/weekly usage bars on claude.ai.
- 3.0K ★ 5.0 32 LLMFeeder Web to Markdown converter for ChatGPT, Claude & AI. Extract clean content, copy to clipboard. Now with dark mode.
jatinkrmalik 3.0K ★ 4.0 33 ContextCapsule Compress AI conversations into token-efficient briefings. Switch models instantly—no context lost. Works on ChatGPT, Claude & more.
- 3.0K ★ 5.0 34 Codex Dev Developer's Insight Tool - View your website in multiple responsive screen sizes simultaneously with synchronized scrolling.
- 3.0K ★ 5.0 35 Claude Pulse Token estimate, cache countdown, 5h/7d usage bars, and chat export on claude.ai. Computed locally.
- 3.0K ★ 4.8 36 AI Site Cloner Clone any website in one click using AI, powered by Step1.dev.
- 3.0K ★ 2.3 37 ChatGPT Path Analyze and extract insights from your ChatGPT conversations, including search queries, thoughts, products, and sources.
Ayima UK 3.0K ★ 3.8 38 ZeroThreat AI Recorder Automate threat & vulnerability detection (OWASP Top 10) for web apps & APIs. Fits developers & pentesters.
- 3.0K ★ 4.4 41 Houston IT Developers 3.0K ★ 4.8 43 Claude Code Browser Point at page elements and let Claude Code fix them. Visual debugging with picker, DOM tree, streaming chat. By Fineguide.AI.
- 3.0K ★ 5.0 45 Webvizio Provide website feedback, report bugs, and generate detailed AI prompts for developers in one click—right on top of live web pages.
webvizio 2.0K ★ 4.9 46 Qodo Merge Chat with your GitHub pull request code, and get AI-powered reviews, descriptions, and code suggestions
qodo 2.0K ★ 4.9 50 Claude Project Downloader One-click export of all your Claude project files — download individually, as ZIP, in native or Markdown format.
tailsgate 2.0K ★ 5.0 Previous 1 2 Next Category listings include Chrome extensions with 1,000+ users, by latest-month install count. See methodology .