Dev tools · alternatives · 2026
24 alternatives to Open source browser add-on
If you like the project and protect people.
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Open source browser add-on launched in 2022; newer entries below may have overtaken it.
- 1
Control the web with prompts (open source)
2025 · browser-use.com · its alternatives →
- 2
Anything API▲656Hey HN! We built Notte, a browser infrastructure and agents platform. Many of our users automate UI workflows or extract data from sites that don’t have APIs. In practice, we noticed that once an agent understands how a site works, parts of the task can often run without a browser by interacting with the same network requests the site uses. So we built Anything API: describe a browser task, and our agent explores the site, builds a function, tests it against your description, and deploys a callable REST endpoint. No infra to manage. How the build works: - Describe the task (best results come…
Mar 2026 · anything.notte.cc · its alternatives →
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💚🇺🇸🗽Secure remote browsing anywhere, any way you like it. - GitHub - BrowserBox/BrowserBox: 💚🇺🇸🗽Secure remote browsing anywhere, any way you like it.
2021 · github.com · its alternatives →
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Source Lair▲136SourceLair lets people develop software in their browsers.
2015 · sourcelair.com · its alternatives →
- 7BA
2014 · breach.cc · its alternatives →
- 8
Yes, it's open source: https://github.com/lissy93/web-check :) Why I'm building this? There are a lot of tools out there for discovering meta and security data relating to a website, IP or server. But currently, there isn't anything that does everything, all in one place and without a paywall/ user sign up. It's still a WIP, and I'm working on a new version, with some more comprehensive checks, so any feedback would be much appreciated :)
2024 · v1.web-check.xyz · its alternatives →
- 9
🔥 Open Source Browser API for AI Agents & Apps. Steel Browser is a batteries-included browser sandbox that lets you automate the web without worrying about infrastructure. - steel-dev/steel-browser
2024 · github.com · its alternatives →
- 10
Turn any website into a reliable API with 1 prompt
Dec 2025 · skills.browser-use.com · its alternatives →
- 11
Expose▲184A beautiful, open-source, tunneling service - written in PHP
2020 · github.com · its alternatives →
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HTTPS Everywhere▲294Chrome extension that encrypts and secures your browser
2017 · chromewebstore.google.com · its alternatives →
- 14
Hey HN, Robert from Laminar (lmnr.ai) here. We built Index - new SOTA Open Source browser agent. It reached 92% on WebVoyager with Claude 3.7 (extended thinking). o1 was used as a judge, also we manually double checked the judge. At the core is same old idea - run simple JS script in the browser to identify interactable elements -> draw bounding boxes around them on a screenshot of a browser window -> feed it to the LLM. What made Index so good: 1. We essentially created browser agent observability. We patched Playwright to record the entire browser session while the agent operates,…
2025 · github.com · its alternatives →
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Browser Arena▲175Open-source benchmarks for cloud browser infrastructure
Apr 2026 · browserarena.ai · its alternatives →
- 16
Open source, dev-friendly and powered by GraphQL and React
2019 · webiny.com · its alternatives →
- 17
Track browser extension installations / threats in real-time
2019 · extensionmonitor.com · its alternatives →
- 18
Beacon is a privacy and security-focused browser with native DANE support and a decentralized p2p light client.
2021 · impervious.com · its alternatives →
- 19
Bring confidence and security to your Web3 transactions
2024 · web3antivirus.io · its alternatives →
- 20WL
My company launched a new open source web browser built on Chromium. It supports decentralized domains on Handshake and is the first browser to support .eth DNS. It is also the first browser to support secure web browsing with DANE. Check it out: https://impervious.com/beacon https://github.com/imperviousinc/beacon
2022 · its alternatives →
- 21
Open Browser Use▲112Open-source browser automation for local AI agents
May 2026 · github.com · its alternatives →
- 22
ThreatSlayer▲85Free enterprise grade security for your personal browser
2023 · chromewebstore.google.com · its alternatives →
- 23HN
Hello everyone! This is a browser extension that attempts to enhance Hacker News user experience, while your data is kept secure, and private (never leaves the browser). Browsers have evolved significantly since doing a v1 back in 2010, which was one of the contributing factors, for attempting a complete re-take few months ago. Personally, I was surprised how useful it turned out to be when browsing around HN. On the linked page you can find install link(s) from web-browser stores, and demo video/screenshots of the features[1] What do you think ? [1] including, browsing content with…
2023 · carina.app · its alternatives →
- 24
What browser am I using? What version is my browser? WhatsMyBrowser.org is the easiest way to find information about your browser, and share it to your designer, developer, or support rep.
2014 · whatsmybrowser.org · 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 →