In-browser conversion · zero upload
Convert anything. In milliseconds.
13 free converters that run entirely in your browser. We show you the exact time it took — usually faster than the upload to other sites would have been.
Data formats
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CSV to JSON
Convert CSV to JSON in your browser. RFC 4180 compliant, handles quoted fields, multiline cells, and CRLF.
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JSON to CSV
Convert JSON arrays to CSV in your browser. Handles nested values, escaping, and custom delimiters.
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JSON to YAML
Convert JSON to YAML 1.2 in your browser. Preserves types, arrays, and nested objects.
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YAML to JSON
Convert YAML to JSON in your browser. Handles anchors, aliases, and YAML 1.2 features.
Image
Text & encoding
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Base64 Encode / Decode
Encode text to Base64 or decode Base64 back to text. Unicode-safe, runs entirely in your browser.
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URL Encode / Decode
Percent-encode strings for URLs or decode them back. Choose between encodeURI and encodeURIComponent behavior.
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JWT Decoder
Decode a JWT in your browser. View header, payload, and expiry. Token is never sent anywhere.
ID & hashes
Popular image conversions
Direct landing pages for the most-searched format pairs. See all conversion pairs →
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