Jsontooncraft

What it does

Convert JSON to any format, generate mock REST APIs, and access 10+ essential developer tools, all in a single unified workspace. Build and ship faster without juggling tabs or tools. Also comes with an offline-ready VS Code extension for instant in-editor conversions.

Free online tool to convert JSON to TypeScript interfaces, Zod schemas, OpenAPI specs, and TOON format. Reduce LLM token usage by 30-60%. 10 free developer tools including JWT debugger, Base64 encoder, UUID generator. 100% client-side, no sign-up required.

• GJ
  Generate JSON mock data for testing/initial app development2023 · jsongenerator.io · ▲103

  Easily create complex JSON data structures using intuitive templates.

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  JSON KnifeFeb 2026 · tools.shanecode.org · ▲4

  30 free developer tools. No ads, no signup, no BS.

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  JSONLint2025 · jsolint.com · ▲7

  All-in-one JSON Tools for Developers

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  JSONKitJun 2026 · jsonkit.in · ▲4

  47 free JSON tools — all in your browser, zero uploads

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  JSON Dev ToolsMay 2026 · jsondevtools.org · ▲2

  Free & Private JSON Tools That Run in Your Browse

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  JSON Playground ToolsJan 2026 · jsonplayground.online · ▲5

  Modern Developer Toolkit

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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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  Guideflow▲1,338

  Create interactive product demos and step-by-step guides in seconds with Guideflow, the leading AI-powered demo automation tool.

  AI · Nov 2025 · guideflow.com

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  I built a synth for my daughter▲1,278

  Hardware and software projects by Ali Roberts

  Life & fun · Nov 2025 · bitsnpieces.dev

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  Welltory▲1,028

  Measure your wellness. Use data to feel great every day.

  Work · Nov 2025 · welltory.com

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  Gemini 3▲1,016

  Bring any idea to life with multimodal capabilities

  AI · Nov 2025 · blog.google

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  TrustMRR▲833

  LLM Gateway is a b2b artificial intelligence based in United States, founded in 2025. $259,539/month in verified Stripe revenue. $78,764 MRR. Ahrefs Domain Rating 52/100. growing 55% month-over-month. Track LLM Gateway's verified metrics on TrustMRR.

  Growth · Nov 2025 · trustmrr.com

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  Boing▲782

  Life & fun · Nov 2025 · boing.greg.technology