MevoLab
Generators and converters in one place
A growing collection of simple tools for text, data, encoding, formatting, and everyday conversions.
Base64 Encoder / Decoder
Convert plain text to Base64 or decode Base64 back to readable text.
Slug Generator
Generate URL-friendly slugs from your text.
Character Counter
Count characters in your text, including spaces and line breaks.
Case Converter
Convert text to different cases like uppercase, lowercase, title case, etc.
JSON Formatter
Format and syntax-highlight your JSON data for better readability.
Unit Converter
Convert between different units of measurement across various categories.
UUID Generator
Generate random UUID v4 values for identifiers, database records, and more.
Password Generator
Generate secure random passwords with custom length and character options.
Lorem Ipsum Generator
Generate placeholder text for layouts, mockups, prototypes, and content previews.
Hash Calculator
Generate SHA hashes for text or uploaded files, with hex and Base64 output.
JWT Validator
Use MevoLab’s free JWT validator to verify token structure, signatures, expiration, and claims securely in your browser.
File Metadata Reader & Editor
Inspect file and image metadata, add custom PNG fields, and edit supported image metadata locally.