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CurlyJSON

Developer Tools

Free JSON tools that run in your browser. Nothing is uploaded.

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Views
31
Stack
3 tools
Launched
Nov 2026

Overview

In the maker's words.

CurlyJSON is a set of free JSON tools that run entirely in your browser, so your data never leaves your device: a formatter that repairs broken JSON and keeps 64-bit IDs exact, a diff that ignores key order, a JSON Schema validator, jq, and type generation in 27 languages.

There is also a free Chrome extension that formats API responses in the tab. Free files up to 10 MB; Pro ($4/mo or $29.99/yr) raises the limit to 100 MB.

Stack

The tools and technologies listed by the maker.

Astro Framework Cloudflare Infra Tailwind CSS Framework

Milestones

What the maker has shipped since launch, newest first.

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Feedback

What's working and what's blocking, from people who tried it.

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Browse related lists

Category All Developer Tools products Every published product in this category. Stack pair Astro + Cloudflare 34 published products use both. Stack type Frameworks for Developer Tools 80 developer tools products list a framework. Launch month Launched in November 2026 Products that launched the same month.