What is Base64 Encoder/Decoder?

Encode and decode text or files to and from Base64 right in your browser. Base64 represents binary data as ASCII text, which makes it useful for embedding images in CSS or HTML, transmitting data in JSON, and preparing API payloads. This free base64 encoder/decoder tool runs entirely in your browser — no sign-up, no uploads, and no data leaves your device.

Why use the Base64 Encoder/Decoder tool?

• Optimized for "base64 encode decode"
• Convert any string to Base64 and back in a single click
• Handles UTF-8 text, file contents, and multi-line input
• Safe for offline use — data never leaves your device