25 tools
Encoding & data tools
Encode and decode Base64, URLs, HTML entities and JWTs, and convert between JSON, CSV and XML.
Free forever · nothing uploaded · no signup
- JSON FormatterFormat, validate and minify JSON.
- Base64 Encode / DecodeEncode or decode Base64 text.
- URL Encode / DecodePercent-encode or decode URLs.
- HTML Entity Encode / DecodeEscape or unescape HTML.
- JWT DecoderInspect a JWT header and payload.
- Query String ↔ JSONConvert query strings to/from JSON.
- Number Base ConverterConvert between binary, hex, decimal.
- JSON to CSVTurn a JSON array into CSV.
- CSV to JSONTurn CSV rows into JSON.
- Hex ↔ TextConvert text to and from hex.
- Binary ↔ TextConvert text to and from binary.
- ROT13 / Caesar CipherShift-cipher a string.
- Morse Code TranslatorText to and from Morse code.
- JSON String EscapeEscape or unescape a JSON string.
- Unix Timestamp ConverterEpoch seconds to and from dates.
- Base32 Encode / DecodeEncode or decode Base32.
- ASCII / Code PointsText to and from code points.
- Unicode EscapeEscape or unescape \u sequences.
- URL ParserBreak a URL into its parts.
- Base58 Encode / DecodeEncode or decode Base58.
- JSON to TypeScriptGenerate interfaces from JSON.
- CSV to Markdown TableTurn CSV into a Markdown table.
- XML FormatterPretty-print XML.
- QR Code GeneratorMake a QR code from any text.
- Markdown to HTMLRender Markdown to HTML.
- 1
Nothing is uploaded
Every tool on this page runs inside your browser tab. Your files are read from disk into memory and never sent anywhere.
- 2
No account, no cap
No signup, no email, no daily limit, no watermark, and no paid tier waiting behind the third file.
- 3
Keeps working offline
Load the page once and it still works with the network off, which is the clearest proof that nothing was ever being uploaded.