Dev tools · alternatives · 2026
24 alternatives to Handle Extension
Refine UI in the browser, feed changes to your coding agent
Handle Extension is a browser tool that lets developers refine website UI directly in the browser and send changes to coding agents like Claude Code, Cursor, and Codex. Instead of repeatedly describing design changes… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
- 1
Automate your work on any website
2021 · browserflow.app · its alternatives →
- 2
Visual Editor▲504Edit web apps visually in the Cursor Browser
Dec 2025 · cursor.com · its alternatives →
- 3
Refined GitHub▲324Browser extension that makes GitHub cleaner & more powerful
2017 · github.com · its alternatives →
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Iteration X▲501Iterate and collaborate directly on your live product
2022 · iterationx.com · its alternatives →
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Refined Twitter▲576A browser extension that improves the Twitter experience
2018 · github.com · its alternatives →
- 6
Web Editor▲85Chrome extension to customize websites without coding chaos
2021 · chromewebstore.google.com · its alternatives →
- 7
Free website feedback collaboration and design bug fixing
2017 · canvasflip.com · its alternatives →
- 8
We're open-sourcing 14 components & examples today for PDF, DOCX, and XLSX viewers, plus bounding box citations, file upload, e-signature, and more. It's MIT licensed and fully customizable. Demo video here: https://share.extend.ai/kRmSGKRF When we started, we tried every file viewer and document component library we could find. Unfortunately, none of them had all the functionality (and polish) that we wanted, so we ended up building our own for https://extend.ai/. It was only ever meant to be internal, but enough customers kept asking for it that we decided to…
Jun 2026 · extend.ai · its alternatives →
- 9
Sketch UI mockups directly on live websites in Chrome
2025 · chromewebstore.google.com · its alternatives →
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FlowLens▲134Hi HN, We often run into this with coding agents like Claude Code: debugging turns into copy-pasting logs, writing long explanations, and sharing screenshots. FlowLens is an MCP server plus a Chrome extension that captures browser context (video, console, network, user actions, storage) and makes it available to MCP-compatible agents like Claude Code. You can try it here: https://magentic.ai/flowlens Any feedback—good, bad, or brutal—is welcome.
Dec 2025 · magentic.ai · its alternatives →
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Devsync▲319Visually edit CSS. Live-sync the result with your editor.
2020 · devsync.co · its alternatives →
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SuperDev▲164All in one browser extension for web designers & developers
2022 · chromewebstore.google.com · its alternatives →
- 17
Edit HTML files visually. Contribute to urin/vscode-web-visual-editor development by creating an account on GitHub.
2024 · github.com · its alternatives →
- 18
Edit web pages like Figma
2024 · chromewebstore.google.com · its alternatives →
- 19
Web Inspector▲107Inspect, debug, and extract — all in one web tool
2025 · chromewebstore.google.com · its alternatives →
- 20
DevLensPro▲98AI-powered debugging for Claude Code. Point, click, fix
Jan 2026 · devlens.pro · its alternatives →
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VS Code extension for building web applications ("swings") using a interactive and editor-integrated coding environment - lostintangent/codeswing
2020 · github.com · its alternatives →
- 23
Beni▲125Browser extension finds the best resale deals online
2022 · joinbeni.com · its alternatives →
- 24
A Sublime Text plugin to execute JavaScript in Google Chrome - acarabott/ChromeREPL
2018 · github.com · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →