Base64 Decoder – Fast, Free, No Ads

Paste your Base64 string and get decoded output instantly.

Supports text & file decoding. Works offline.

What is Base64?

Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It's commonly used when there's a need to encode binary data, especially when that data needs to be stored and transferred over media that are designed to deal with text.

Common Uses:

  • Embedding images in HTML/CSS (data URLs)
  • Encoding email attachments (MIME)
  • Storing complex data in JSON
  • JWT tokens for authentication
  • Transferring binary data where only text is allowed

Why Use Our Tool?

  • Instant decoding without page refreshes
  • Works completely offline (after page load)
  • No tracking, no ads, just a simple tool that works
  • Free to use with no limitations
  • Built with a clean, modern interface

Need to encode data? Try our Base64 Encoder.