Encode and decode Base64 and URL strings. Fast, secure, and works entirely in your browser.
Encode and decode Base64 and URL strings in your browser. All processing happens locally - your data never leaves your device.
Base64: Binary-to-text encoding using 64 printable characters. Used for encoding images, files, and data in URLs, JSON, XML, and email attachments.
URL Encoding: Percent encoding for safe transmission in URLs. Converts special characters to %XX format (e.g., space → %20, & → %26).
Use Cases: Data URIs, API tokens, email attachments, JWT tokens, query parameters, form data, basic authentication headers.