Developer tools
Developer tools for private, predictable everyday workflows.
Base64 encoder and decoder
Encode or decode Base64 text locally in your browser.
Case converter
Convert text into a clean camel-style identifier locally.
SHA-256 and SHA-512 hash generator
Calculate a one-way checksum locally without uploading text or files.
HTML entity encoder and decoder
Encode HTML-sensitive characters or decode entities without rendering unsafe markup.
JSON formatter, validator, and minifier
Validate JSON with clear errors, format it for reading, or minify it locally.
Slug generator
Turn a title into a clean lowercase URL slug locally.
URL encoder and decoder
Encode URL components or decode percent-encoded text locally.
UUID generator
Generate one or many cryptographically random UUID v4 values locally.