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JSON, YAML & CSV — convert, format, validate, diff

Convert between JSON, YAML and CSV, beautify or minify, validate with precise line/column errors, and diff two files line-by-line. All in your browser.

Every feature. No limits. No sign-up. No watermark. Nothing uploaded. Free forever. This runs 100% in your browser — your data is parsed and converted locally with JavaScript. Nothing is ever sent to a server, so there's nothing to pay for.

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Drop a file here, or click to choose
.json · .yaml/.yml · .csv · .txt

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A free tool by Kaira Prime — an independent software studio. Every feature, no limits, no sign-up, no watermark, nothing uploaded. Free forever. More free, in-browser tools: kairaprime.com/tools →