SA DevTools

What it does

SA DevTools is a collection of 19 free developer utilities that run entirely in your browser. Tools include: JSON Formatter, Text Comparator, Base64 Encoder/Decoder, Regex Tester, Markdown Preview, Color Picker, UUID Generator, Hash Generator, CSV ↔ JSON Converter, URL Encoder/Decoder, Case Converter, Word Counter, HTML & CSS Formatter, JS Minifier, Cron Parser, Timestamp Converter, and more. No login required. No data sent to any server. Completely open source and free forever.

Free online tool to compare text and JSON files semantically. Ignore key order, format JSON, and merge changes securely in your browser.

Compare text, JSON, XML, and structured data with semantic awareness — ignoring key order, formatting noise, and whitespace differences. SA DevTools is a small, independent toolkit built for the release reviews, architecture audits, and incident post-mortems that fill a modern engineering calendar. Instead of scattering utilities across dozens of microsites, we maintain a single home base so teams can bookmark one URL and meet users where they already collaborate. The About page shares the backstory and the interaction principles guiding every decision—clear typography, fast keyboard flows, and layouts that feel trustworthy to both humans and review bots. Traditional text comparison tools…from sadevtools.com

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  Dev tools · 23d ago · openbot.run

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  Talanoa▲345

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  Dev tools · Jun 2026 · brew.sh

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  Performative-UI – A react component library of design tropes▲1,181

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  I made Google Trends for Hacker News by indexing 18 years of comments▲822

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  Life & fun · Jun 2026 · hackernewstrends.com