Developer Utilities

What it does

Essential developer tools: JSON formatter, Base64, UUID, hashes, regex, URL encode, JWT decode, and timestamps.

26 free developer utility tools that run entirely in your browser — JSON formatter, SQL formatter, JWT decoder, Base64 encoder, UUID generator, chmod calculator, regex tester & more. No signup. Your data never leaves your device.

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  DevUtilsApr 2026 · tools.wasta-wocket.fr · ▲3

  25 free dev tools that run in your browser. No signup.

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  ViteTools.devNov 2025 · ▲10

  Free online developer tools & utilities

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  RAW - Developer ToolkitMay 2026 · rawtools.site · ▲6

  30+ dev tools in one place fast, free, and 100% client-side.

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  NicheUtils: 40+ Free Dev Tools 2025 · nicheutils.com · ▲9

  40+ dev tools that run 100% in your browser - no servers

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  QuickCodeToolsJan 2026 · quickcodetools.in · ▲4

  18+ free developer tools that never touch your data

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  TryDevUtilsFeb 2026 · opendevutils.com · ▲4

  Essential collection of developer utilities

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  /dev/null▲483

  a social network for devs

  Dev tools · 3d ago · dev-null.sh

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  Whiteboard (YC W26) – an open-source IDE for thoughtful software design▲423

  open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.

  Dev tools · 27d ago · github.com

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  Reladraw – A diagram language where you decide where to place things▲411

  Contribute to reladraw/reladraw development by creating an account on GitHub.

  Dev tools · 25d ago · github.com

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  OpenBot▲362

  Grok Bot alternative: free, local, open-source, multiplayer

  Dev tools · 23d ago · openbot.run

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  Talanoa▲345

  Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…

  Dev tools · 20d ago · talanoa.email

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  CoreSpeed▲332

  One MCP for everything your agents need: apps, memory, tools

  Dev tools · 28d ago · corespeed.io

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  isometric.nyc – giant isometric pixel art map of NYC▲1,325

  Hey HN! I wanted to share something I built over the last few weeks: isometric.nyc is a massive isometric pixel art map of NYC, built with nano banana and coding agents. I didn't write a single line of code. Of course no-code doesn't mean no-engineering. This project took a lot more manual labor than I'd hoped! I wrote a deep dive on the workflow and some thoughts about the future of AI coding and creativity: http://cannoneyed.com/projects/isometric-nyc

  AI · Jan 2026 · cannoneyed.com

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  Cowork▲1,088

  Turn Claude into your digital coworker

  AI · Jan 2026 · claude.com

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  DataFast▲867

  Revenue-first analytics

  Growth · Jan 2026 · datafa.st

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  OpenClaw▲836

  The AI that actually does things

  AI · Jan 2026 · openclaw.ai

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  Kilo Code Reviewer▲799

  Automatic AI-powered code reviews the moment you open a PR

  Dev tools · Jan 2026 · kilo.ai

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  PostSyncer▲793

  AI Content Maker, for Social Media Publishing

  AI · Jan 2026 · postsyncer.com