Developer utilities

Useful everyday helpers for file verification, URLs, JSON, and encoding.

12 tools

Available tools

Straightforward tools for exact technical tasks.

SHA-512 file checksumCalculate a SHA-512 checksum of a local file.Developer utilities SHA-1 file checksumCalculate legacy SHA-1 checksums for file comparisons; not recommended for security.Developer utilities File to Base64Convert a small local file into Base64 text.Developer utilities Base64 to fileDecode Base64 text into a downloadable binary file.Developer utilities UUID v4 generatorGenerate cryptographically random version 4 UUIDs.Developer utilities Random password generatorGenerate strong random passwords locally.Developer utilities URL query parameter parserParse a URL and display its decoded query parameters as JSON.Developer utilities Unix timestamp converterConvert Unix timestamps to ISO dates or dates to timestamps.Developer utilities JSON formatter & validatorValidate JSON, format it with indentation or minify it into a single line.Developer utilities URL encoder & decoderPercent-encode or decode URL component text using standard URI component rules.Developer utilities Base64 text encoder & decoderEncode UTF-8 text to Base64 or decode Base64 back to Unicode text.Developer utilities SHA-256 file checksumCalculate the SHA-256 fingerprint of a local file for integrity checking.Developer utilities

Processing notes

These tools use browser-side processing; support varies with file format and device capabilities. Check each tool’s details before use.