Developer tools that don't suck.
Free, private, in-browser. Your data stays on your device. No signup required.
Base64 Encode / Decode
Bidirectional Base64 with UTF-8 support and URL-safe output.
Case & Slug Converter
camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, slug.
Color Converter
HEX ↔ RGB ↔ HSL, bidirectional, with live color preview.
Cron Expression Parser
5-field cron parser. Next N run times, human-readable description.
Hash Generator
MD5 + SHA-1/256/384/512. UTF-8 safe, hex output, copy each.
IP Lookup
Your public IP, ISP, ASN, country, city and timezone at a glance.
JSON Formatter
Pretty-print, minify and validate JSON. 2/4-space or tab indent.
JWT Decoder
Decode JWT header + payload as JSON. Expiry check, base64url.
Nano ID Generator
Secure Nano IDs. Custom size, alphabet, URL-safe mode. Batch generate.
Number Base Converter
bin ↔ oct ↔ dec ↔ hex. BigInt for arbitrary precision.
Regex Tester
Live regex testing with flags (g/i/m/s/u), match highlighting, groups.
Snowflake Decoder
Decode Discord, Twitter/X, Instagram, Slack Snowflake IDs to creation timestamps.
Unix Timestamp Converter
Epoch ↔ date converter. Seconds or milliseconds, UTC + local.
URL Encode / Decode
encodeURI / encodeURIComponent and their decode counterparts.
UUID Generator
Generate random v4 UUIDs. Batch mode, uppercase, braces, no hyphens options.