Free online Base64 encoder and decoder
Base64 Encode/Decode
Encode text to Base64 or decode Base64 back to UTF-8 text with optional URL-safe mode.
Developer utility
Browser based
Runs on the current page
Copy-ready
Use the output where you work
No sign-in
Open the tool and get moving
Developer tool
Encode or Decode Base64
Convert UTF-8 text to Base64, or decode Base64 text back into readable content.
Output will appear here.
Built for developers
Small utilities for fast technical checks.
Entwicklera developer tools are made for everyday formatting, encoding, decoding, generation, and inspection tasks during implementation and debugging.
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FAQ
Base64 Encode/Decode questions.
Does this support Unicode text?
Yes. The encoder and decoder use UTF-8 so text beyond basic ASCII can be converted correctly.
What is URL-safe Base64?
URL-safe Base64 replaces characters that can be awkward in URLs and can omit padding characters.
Custom software