JSON Crack
Visualize JSON data as an interactive graph. Paste any JSON and instantly see the structure as nodes and edges. Essential for understanding complex nested API responses.

JSON Crack, as it opens in a browser tab.
Not sure how to add JSON Crack to your home screen? Step-by-step for Chrome, Safari, Firefox and Edge — it takes about ten seconds, and there is no app store involved.
Own JSON Crack? Have us re-run this measurement — we open it in a real browser, cut the network, and send you what survived.
How to install JSON Crack as a PWA
Screenshots
Are you the maker of JSON Crack? Claim this listing →
Similar to JSON Crack
Fast, offline, and free documentation browser for developers. Search 100+ docs in one web app including HTML, CSS, JavaScript, PHP, Ruby, Python, Go, C, C++, and many more.
Convert between web formats — JSON to TypeScript, HTML to JSX, CSS to Tailwind, SVG to React component, and 30+ other transformations. Indispensable for frontend developers.
Convert data between formats: JSON, CSV, Excel, Markdown tables, SQL INSERT statements, HTML tables. Paste data and get the output instantly. Essential for data wrangling.

A React based progressive web app that uses Open Weather Map API to fetch the weather data and display it in a beautiful card. This web app is also available offline. Obviously it can't fetch new weather data but it can display a warning message to suggest user to connect to the

A single-page web tool that visualizes searching and sorting algorithms to demonstrate computer science concepts such as Big-O complexity. Built with React, TypeScript, and D3, and tuned with progressive web app capability. Useful for students and developers studying data structures and algorithms.
A multilingual, local-first toolbox for JSON, API, OpenAPI, JWT/JWK, code formatting and data validation in the browser. Installs to your home screen from any modern browser — no app store, no download; its manifest declares standalone display with a 512px icon, and its service worker caches assets for offline use. Submitted by its author and measured on 2026-08-31.
Own a PWA? See the listing options — standard submission is free.