Developer Tools
Fast, privacy-first utilities that run entirely in your browser. Paste goes in, results come out — nothing is sent to a server.
Available tools
11 liveJSON Formatter
Format, minify, and validate JSON with line:column error reporting.
Open toolBase64 Encoder
Encode text to Base64 or decode back. UTF-8 safe. Standard and URL-safe modes.
Open toolJWT Decoder
Decode a JSON Web Token header and payload. Decoded dates for exp/iat/nbf claims.
Open toolRegex Tester
Test regular expressions against sample text with live match highlighting.
Open toolHash Generator
MD5, SHA-1, SHA-256, SHA-384, SHA-512 hashes for text input.
Open toolTimestamp Converter
Convert between Unix timestamps and human-readable dates in any timezone.
Open toolUUID Generator
Generate v4 and v7 UUIDs with bulk mode and format variants.
Open toolURL Encoder
Percent-encode and decode URL components. RFC 3986 compliant.
Open toolHTML Encoder
Encode HTML entities (<, &, ") and decode them back to text.
Open toolCase Converter
Convert text between camelCase, PascalCase, snake_case, kebab-case, and more.
Open toolPassword Generator
Generate cryptographically strong passwords with configurable length and charset.
Open tool