Small tools for text and data.
Compare versions, tidy JSON, encode, hash and convert timestamps. Fast, free and private: everything runs in your browser, and nothing you paste is uploaded.
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Compare text
See every changed line and word between two versions, side by side or inline.
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JSON formatter
Validate, pretty-print, minify and sort keys, with the exact line of any error.
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Encode & decode
Base64, Base64URL, URL encoding, HTML entities and hex, both ways at once.
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Hash generator
MD5, SHA-1 and SHA-2 checksums of text or files, and a quick check against yours.
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Timestamp converter
Turn Unix time into readable dates and back, in UTC and in your time zone.
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UUID generator
Random version 4 or time-ordered version 7 IDs, one or a thousand at a time.