About JSON Studio
JSON Studio is a free collection of everyday developer utilities for working with JSON, XML and SQL. There is no account to create, no upload step and no waiting — you paste, you get the answer.
Private by design
JSON and XML validation, formatting, minification and conversion run entirely with client-side JavaScript.
Built for speed
Server-rendered pages, minimal JavaScript and no network round trips for the core tools.
Developer accurate
Errors report the parser message plus the approximate line and column so you can fix issues fast.
How your data is handled
Every JSON and XML operation on this site is executed in your browser tab. Nothing you paste is transmitted, logged or stored. SQL formatting, structural checks and query generation are also local — no database is ever contacted and no query is executed.
Roadmap
Optional AI-assisted SQL generation is planned. If it ships, the model call will run on the server so credentials never appear in frontend code, and the local heuristic drafting will remain available.