Developer Tools

Free online developer tools — format JSON, encode Base64, convert Unix timestamps, compare text diffs, and more. No install, no login required.

JSON Formatter

Paste messy JSON and turn it into clean, readable output.

jsonformatter
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Base64 Encode / Decode

Encode plain text to Base64 or decode Base64 back to readable text.

base64encoding
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Timestamp Converter

Convert Unix timestamps into readable dates and back again.

timestampunix
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