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Side-by-side and inline diff with line and word-level highlighting. Useful for code review, contract comparison, log diffing.
This text diff checker runs 100% in your browser. Nothing you paste, drop, or generate ever leaves your device - no analytics on your input, no uploads, no logs.
Up to a few MB run smoothly. Beyond that, use a desktop diff tool.
Same browser-only philosophy. Free, no signup, no upload.
Compare two JSON payloads and see added, removed, and changed fields.
Compare two CSVs by row and column - find new, deleted, and changed rows.
Beautify, validate, and minify JSON with sortable keys, exact error positions, and a one-click copy.
Validate JSON syntax with exact line and column for every error.
Strip whitespace from JSON to produce a single compact line.
Convert a JSON array of objects into a downloadable CSV file.
We design and ship internal tooling, dashboards, and customer-facing utilities. Tell us what you need and we'll scope it.