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Pick a key column and compare two CSVs row-by-row. See new rows, deleted rows, and value-level changes per column.
This csv compare tool runs 100% in your browser. Nothing you paste, drop, or generate ever leaves your device - no analytics on your input, no uploads, no logs.
Use row index as key - order matters.
Same browser-only philosophy. Free, no signup, no upload.
Compare two blocks of text and see additions, deletions, and changes.
Compare two JSON payloads and see added, removed, and changed fields.
View, sort, filter and clean a CSV in your browser - no upload.
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.
We design and ship internal tooling, dashboards, and customer-facing utilities. Tell us what you need and we'll scope it.