Hasare

What it does

Free online developer tools that run 100% in your browser. JSON formatter, URL encoder/decoder, hash generator, diff checker, YAML converter, and more. Fast, secure, no data leaves your device.

Powerful developer utilities that run 100% in your browser. No data leaves your device. Fast, secure, and always free. Experience the power of local-first development. Built with Rust for blazing speed. 100% offline, zero latency, and keeps your secrets local. Your data never leaves your browser. Complete privacy guaranteed. Get full support for Claude Code , Cline , and top coding tools. Senior-only teams. Custom software, AI integration & product engineering. Convert between camelCase, snake_case, kebab-case, and more. Master the CSS box-shadow property. Learn offset, blur, spread, inset, and layered shadows, then generate production-ready code with a live preview. Learn the difference…from hasare.com

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  Tools20252025 · ▲8

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  Toolaska2025 · toolaska.com · ▲7

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  ToolCraftrDec 2025 · toolcraftr.com · ▲5

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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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  Tools Take2025 · ▲8

  Essential developer tools online

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  /dev/null▲482

  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 · 28d 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 · 26d 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▲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 · 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

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  AI · Jan 2026 · openclaw.ai

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  Dev tools · Jan 2026 · kilo.ai

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  PostSyncer▲793

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  AI · Jan 2026 · postsyncer.com