Base64 Encode / Decode 🔒 Your data never leaves your browser.

Convert text to Base64 and back. Full Unicode support.

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About this tool

Base64 represents binary data using 64 ASCII characters (A–Z, a–z, 0–9, +, /). It is commonly used to embed data in JSON, URLs, email (MIME) or image data URIs. This tool encodes and decodes Base64 right in your browser, with full Unicode support (accents, emoji…) via UTF-8.

Everything runs 100% client-side: the text you paste is never sent to any server, making it safe for sensitive data such as tokens, passwords or configuration files.