TryDevUtils

What it does

Free open source developer utilities for JWT decoding, encoding, JSON formatting, validation, and UUID generation, Base64 converter, Timestamp/date converter, Text diff, Cron parser, Colour converter, Hash generator, Yaml validator. All processing happens locally in your browser.

Privacy-first developer utils for JWT decoding, JSON formatting, Base64 conversion, UUID generation, timestamp conversion, text diff, cron parsing, regex testing, SQL formatting, and more. Available as a web app, desktop app, and Chrome extension. All processing happens locally — no data leaves your device.

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

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

• 
  Developer UtilitiesJan 2026 · devutil.dev · ▲3

  https://www.devutil.dev/

• 
  ViteTools.devNov 2025 · ▲10

  Free online developer tools & utilities

• 
  Dev UtilitiesMay 2026 · github.com · ▲3

  Free online developer tools — 60+ utilities.

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

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

• 
  DevTools2025 · onlinewebdevtools.com · ▲18

  Collection of free online tools to help in web development

• 
  /dev/null▲484

  a social network for devs

  Dev tools · 3d ago · dev-null.sh

• 
  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 · 28d ago · github.com

• 
  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 · 26d ago · github.com

• 
  OpenBot▲362

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

  Dev tools · 23d ago · openbot.run

• 
  Talanoa▲346

  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 · 21d ago · talanoa.email

• 
  CoreSpeed▲332

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

  Dev tools · 28d ago · corespeed.io

• 
  Rork Max▲1,428

  Best AI for iOS apps. Website that replaces Xcode

  Life & fun · Feb 2026 · rork.com

• 
  happycapy▲1,365

  The agent-native computer, for the rest of us

  AI · Feb 2026 · happycapy.ai

• 
  SuperX▲897

  All-in-one growth OS for serious 𝕏 creators

  AI · Feb 2026 · superx.so

• 
  KiloClaw▲868

  Hosted OpenClaw. No Mac mini required.

  Dev tools · Feb 2026 · kilo.ai

• 
  Lovon AI Therapy▲801

  Feel closer and have more fun with your partner every day!

  AI · Feb 2026 · lovon.app

• 
  I spent 3 years reverse-engineering a 40 yo stock market sim from 1986▲721

  Hello my name is Ben Ward for the past 3 years I have been remastering the financial game Wall Street Raider created by Michael Jenkins originally on DOS in 1986. It has been a rough journey but I finally see the light at the end of the tunnel. I just recently redid the website and thought maybe the full story of how this project came to be would interest you all. Thank you for reading.

  Work · Feb 2026 · wallstreetraider.com