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Format JSON, encode Base64, convert Unix timestamps, test regular expressions and encode URLs — all online, directly in your browser. No data is ever sent over the internet.
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JSON Formatter
Format, validate and minify JSON with syntax highlighting. Free, 100% browser-based.
JSON
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Free
Base64 Encode/Decode
Encode and decode text and images in Base64. Full UTF-8 support, Data URIs.
Base64
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Free
Unix Timestamp Converter
Convert Unix timestamps to dates and back. Live clock, multi-timezone.
EpochDate
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Free
URL Encode/Decode
Encode and decode URLs and query parameters. Full special character support.
URLURI
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Free
Regex Tester
Test regex patterns in real-time with match highlighting and capture groups.
Regex
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