ByteTools
Fast, privacy-friendly developer utilities that run entirely in your browser. No data ever leaves your device.
All Tools
Choose a utility from below to get started with your task.
JSON to YAML Converter
Convert JSON to YAML format with validation feedback.
YAML to JSON Converter
Convert YAML to JSON format with validation feedback.
Base64 Encoder
Convert text to Base64 with UTF-8 safe handling.
Base64 Decoder
Convert Base64 to text with UTF-8 safe handling.
JWT Tool
Encode, decode, and verify JSON Web Tokens, highlighting headers, payloads, and signatures.
Cron Tester
Searchable cron patterns with 3 execution times. Search "every 5 minutes" or "weekdays".
Regex Tester
Evaluate patterns against sample text, showing matches and captured groups.
Timestamp Converter
Translate Unix epochs and ISO strings across time zones and relative formats.
Hash Generator
Produce cryptographic hashes (MD5, SHA families) with selectable output encodings.
Text Compare Tool
Compare two texts side-by-side and highlight differences instantly. Free online text diff tool.
All tools run client-side for maximum privacy and speed.