Free AI Atlas logoFree AI Atlas | Discover the Best AI Tools & Curated AI Directory

Free Base64 Encode / Decode

Encode text to Base64 or decode Base64 back to plain text with our free browser-based tool. No signup is required and your text never leaves your device.

What is base64 encode / decode?

A Base64 encoder/decoder converts ordinary text into Base64 and back again. It’s useful for embedding data in URLs, email content, APIs, and developer workflows where safe text encoding is required.

How to use this base64 encode / decode

  1. Paste plain text or Base64 input.
  2. Select encode or decode mode.
  3. Review the converted output.
  4. Copy the result for use in your app or document.

Base64 Encode / Decode features

  • Base64 encoding
  • Base64 decoding
  • Instant conversion
  • Browser-only processing
  • Copy to clipboard
  • No signup required

Who is this tool for?

Developers
Web engineers
Security pros
QA testers
Email authors
Students