Base64 Encoder / Decoder
Encode text to Base64 or decode Base64 strings back to readable text — instantly, in your browser.
100% Private - Processed entirely on your device
Free Online Base64 Encoder and Decoder
Base64 is a binary-to-text encoding scheme commonly used to embed binary data inside text formats like JSON, XML, HTML, and email (MIME). Our free Base64 encoder and decoder lets you quickly convert any UTF-8 text into its Base64 representation, or decode a Base64 string back to its original form — all without uploading anything to a server.
Why use this tool?
- 100% client-side: your text never leaves your device.
- Full Unicode support: emoji, accented characters, and non-Latin scripts round-trip correctly.
- Two-way conversion: switch between encode and decode with a single click.