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- JSON Formatter & ValidatorPaste JSON to pretty-print it, validate it and find the error line
- Regex TesterTest a regular expression live: see matches, capture groups and replacements
- Base64 & URL Encoder/DecoderEncode and decode Base64, URL (percent) encoding and HTML entities
- JWT DecoderDecode a JSON Web Token's header and payload. The token is never sent anywhere
- Unix Timestamp ConverterConvert Unix timestamps to dates and back
- UUID & Hash GeneratorGenerate UUIDs and compute MD5 and SHA hashes of text or files
- Color Code ConverterConvert between HEX, RGB, HSL, HSV and CMYK, and check text contrast
- Truth Table GeneratorEnter a logic expression to get its truth table and a simplified form
- Number Base Converter (Binary, Hex, Decimal)Convert between binary, octal, decimal, hexadecimal and any base, with steps and bitwise operations
- IP Subnet Calculator (CIDR)Network address, broadcast address, host range and host count from an IP address and mask
- Chmod CalculatorTick read, write and execute to get the octal (755) and symbolic (rwxr-xr-x) Linux permissions and the command
- Cron Expression Generator & ExplainerExplain a cron expression in plain words, list its next run times, or build one by picking a schedule
- XML Formatter & ValidatorPretty-print or minify XML, find syntax errors and browse it as a tree
- SQL FormatterTurn a one-line SQL query into clean, indented SQL
- YAML Validator & YAML ↔ JSON ConverterCheck YAML for errors and convert between YAML and JSON
- CRC CalculatorCRC-8, CRC-16 and CRC-32 checksums of text or hex bytes, with common presets and custom polynomials
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