nowfound

Dev tools · alternatives · 2026

ME

Matlock Extension is a browser tool for developers that identifies open source libraries used on web pages. It scans websites to reveal which libraries are in use, making it useful for developers researching… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Matlock Extension – Discover the Open Source Libraries Pages Are Using launched in 2019; newer entries below may have overtaken it.

  1. 1
    Kite▲867

    Internet-connected programming

    2016 · kite.com · its alternatives →

  2. 2

    Control and build your own VPN 🛠️

    2018 · getoutline.org · its alternatives →

  3. 3

    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 →

  4. 4

    Identify the software used on the websites you visit

    2015 · wappalyzer.com · its alternatives →

  5. 5

    Hi HN, I'm Barry and I've built Prism.Tools (https://blgardner.github.io/prism.tools/) – a collection of client-side developer utilities that respect your privacy. Many of these tools were used way back in the days when I ran a BBS and started my communities first ISP, serving three local communities with Dial-Up Internet, Web Hosting etc. The tools have been refined to reflect the changes in tech since then and designed for the Novice and Pro alike. As I locate more tools others may find useful I will refine and add them to the collection. Use them, Share them, or not.…

    Jan 2026 · blgardner.github.io · its alternatives →

  6. 6
    Padlock▲146

    A modern, open source password manager for everyone.

    2015 · its alternatives →

  7. 7
    Padlock▲107

    A modern, open source password manager for everyone.

    2017 · its alternatives →

  8. 8

    Slint is a declarative GUI toolkit written primarily in Rust, with API support for multiple programming languages such as C++ and JavaScript. It is designed for desktop and embedded usage. The Slint website has just been redesigned. And we added a new Royalty-Free License option besides GPL and commercial

    2023 · slint.dev · its alternatives →

  9. 9

    Hey HN, I’m Brad, one of the creators of Superblocks and a YC alum, excited to share our internal tooling IDE. As developers ourselves, we faced the problem of building tons of internal admin UIs, backends to connect siloed data, reporting jobs, and data pipelines. For UIs we would build one-off React components. For integrations, we would have to decipher vendor docs and implement auth. Finally, for reporting jobs we had to handle failures and observability – many hours of repetitive engineering effort. So we built Superblocks, an internal tooling IDE to connect to any datasource…

    2022 · superblocks.com · its alternatives →

  10. 10

    hey guys, wanted to show one of my side projects i just made public. the idea is basically another osint tool for pentesters and bug bounty hunters. it watches certificate transparency logs and checks newly-seen domains for exposed stuff like .env files, open .git dirs, config files, db dumps and so on, and puts whatever it finds into a searchable db. you just search a domain (or part of one) and see what's exposed. it's read-only and free. one thing i've been thinking about adding is a way to register for certain keywords and get notified when something new shows up for that search. would…

    Jul 2026 · search.cerast-intelligence.com · its alternatives →

  11. 11
    Stache▲209

    A smarter way to bookmark web pages for Mac and iOS

    2014 · its alternatives →

  12. 12

    Add OSINT & Threat tooltips to all pages. Use any REST API!

    2017 · github.com · its alternatives →

  13. 13

    The only OSINT tool you will ever need

    2023 · osint-tool.com · its alternatives →

  14. 14
    SuperDev▲164

    All in one browser extension for web designers & developers

    2022 · chromewebstore.google.com · its alternatives →

  15. 15

    Password-protect URLs using AES in the browser; create hidden bookmarks without a browser extension - jstrieb/link-lock

    2020 · github.com · its alternatives →

  16. 16

    Hi, I'm Alex - the creator of STRICH (https://strich.io), a barcode scanning library for web apps. Barcode scanning in web apps is nothing new. In my previous work experience, I've had the opportunity to use both high-end commercial offerings (e.g. Scandit) and OSS libraries like QuaggaJS or ZXing-JS in a wide range of customer projects, mainly in logistics. I became dissatisfied with both. The established commercial offerings had five- to six-figure license fees and the developer experience was not always optimal. The web browser as a platform also seemed not to be the main…

    2023 · strich.io · its alternatives →

  17. 17

    Learn ciphers by breaking them

    May 2026 · cipherlock.me · its alternatives →

  18. 18
    Tango▲70

    Get insights from your access logs with fun

    2020 · github.com · its alternatives →

  19. 19

    A fast and secure content blocker for iOS

    2018 · apps.apple.com · its alternatives →

  20. 20AO
  21. 21
    wΞlock▲82

    Web3 smart lock system that uses NFT as a key

    2022 · eap.w3lock.io · its alternatives →

  22. 22

    Live extension analysis: Point us at a Chrome/Edge/Firefox extension (store URL or CRX). We spin up a safe sandbox and observe it in real time—permissions use, message passing, storage writes, network calls, remote code loading, and UI injections. Package scanning: Paste an npm/package URL or code. We do quick static + dynamic checks: install/postinstall scripts, obfuscation/eval, exfil endpoints, suspicious APIs, and typosquat/reputation signals. AI explainer: An LLM summarizes the behaviors and risk patterns in plain English (why it’s risky, what to verify,…

    2025 · browsertotal.com · its alternatives →

  23. 23

    In-browser A.I. protection from online threats - all free

    Nov 2025 · its alternatives →

  24. 24

    Block malicious websites in real-time

    2022 · chromewebstore.google.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 →

Matlock Extension – Discover the Open Source Libraries…