All tools

Every JSONForge tool. All of them run in your browser; none of them upload anything.

Formatter

Pretty-print, minify and sort JSON keys. Runs entirely in your browser.

Compare two JSON documents with smart array alignment that reports moves instead of 10,000 modified rows.

Fix truncated, fenced, commented or single-quoted JSON from LLM output — with a line-by-line report.

Infer a JSON Schema (draft-07 or 2020-12) from one or many sample documents.

Run JSONPath or JMESPath queries against a document, in-browser.

Browse newline-delimited JSON line by line; bad lines never block the rest.

Convert JSON to YAML, CSV, query strings and back — locally.

Convert JSON to YAML, CSV, query strings and back — locally.

Convert JSON to YAML, CSV, query strings and back — locally.

Generate Swift, TypeScript, Go or Python type declarations from a sample payload.

Generate Swift, TypeScript, Go or Python type declarations from a sample payload.