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Convert Data
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Convert JSON to CSV, encode and decode Base64, transform Unix timestamps, switch between color formats, and calculate CSS units. Fast, browser-based data converters with no file uploads.

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Free Data Converters with Instant Results

These converters handle the small but time-consuming tasks that come up constantly in development and data work. Convert a JSON response to a CSV file you can open in a spreadsheet, or go the other way and bring CSV data into JSON format. Encode and decode Base64 strings, convert Unix timestamps to readable dates, switch between HEX, RGB, and HSL color formats, or calculate CSS units from pixels to rem. Each converter runs instantly in your browser with no file size limits and no sign-up needed.

All tools run entirely in your browser. No files are uploaded to our server.

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Frequently Asked Questions

Everything you need to know

Our converters support JSON to CSV, CSV to JSON, Base64 encode/decode, Unix timestamp to human-readable date, HEX to RGB, RGB to HSL, px to rem, and URL encode/decode.

No server-side limits. All conversions happen in your browser, so the only limit is your device's memory. Most tools handle large files (several MB) without issues.

Paste the Unix timestamp (in seconds or milliseconds) into our Timestamp Converter. It instantly shows the human-readable date and time in your local timezone and UTC.

Yes. Our Color Format Converter lets you input any color in HEX, RGB, or HSL format and instantly get the equivalent values in all other formats with one-click copy.

JSON is common in APIs and databases, but spreadsheet tools like Excel and Google Sheets use CSV. Our JSON to CSV converter makes it easy to export API data for reporting or data analysis.

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