🧑‍💻 Developer

Developer utilities that run entirely in your browser. Nothing you paste leaves your device.

Bits & Bytes

🔄 Little EndianConvert a number between big-endian and little-endian bytes 🔢 Number ConverterConvert numbers between binary, decimal and hex 💾 ByteEvery representation of a byte: bits, hex, integer and ASCII 💡 BitFlip bits in an interactive editor

Time

⌛ Timestamp ConverterConvert Unix timestamps and dates 🕰️ Cron ExplainerExplain a cron expression and its next runs

Encoding

🎫 JWT DecoderDecode and inspect JSON Web Tokens 📦 Base64Encode and decode Base64 text and files 🔗 URL ParserSplit a URL and edit its query parameters 🏷️ HTML EntitiesEscape and unescape HTML entities 🧱 CBOR DecoderDecode CBOR into readable diagnostic notation and JSON 🧬 Protobuf DecoderDecode Protocol Buffers messages without a schema

Generators

🆔 UUID / ULIDGenerate and inspect UUIDs and ULIDs

Testing

🧪 Regex TesterTest regular expressions with live matches 📑 Text DiffCompare two texts line by line

Data

🧾 JSON FormatterFormat, minify and validate JSON 🆚 JSON DiffCompare two JSON documents 🔀 YAML ↔ JSONConvert between YAML and JSON 📊 CSV ↔ JSONConvert between CSV and JSON 🗄️ SQL FormatterFormat and beautify SQL queries

Web

🕵️ User-Agent ParserIdentify browser, OS and device from a User-Agent