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URL Encoder / Decoder

Percent-encode and decode URL components. Free, no signup, runs in your browser.

Runs entirely in your browser — your file never leaves your device
Output appears here

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Data conversion

JSON Formatter

Paste JSON, get it formatted and validated. Free, no signup, runs in your browser.

#json#formatter#validator
Data conversion

JSON ↔ YAML Converter

Convert between JSON and YAML both ways. Free, no signup, runs in your browser.

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Regex Tester

Test JavaScript regex patterns with live matching and capture group highlighting.

#regex#validator
Data conversion

JSON ↔ CSV Converter

Convert a JSON array to CSV and back. Free, no signup, runs in your browser.

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Base64 Encoder

Encode and decode Base64 strings — text, URLs, file content. Browser-native, no network calls.

#base64#encoder#decoder
Data conversion

Timestamp Converter

Convert Unix timestamps to human dates and back. Free, no signup, runs in your browser.