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Base64 Encoder/Decoder
Encode text to Base64 or decode Base64 to text. Supports standard and URL-safe variants.
Input (Text)
Output (Base64)
Standard Base64: Uses characters A-Z, a-z, 0-9, +, and /. May contain = padding.
URL-Safe Base64: Uses - instead of + and _ instead of /. No padding. Safe for URLs and filenames.
How to Use
- Select Encode or Decode mode
- Choose Standard or URL-Safe Base64 variant
- Enter or paste your text/Base64 in the input area
- Click the Encode/Decode button
- Copy or download the result
Features
- ✓Encode text to Base64
- ✓Decode Base64 to text
- ✓URL-Safe Base64 support
- ✓Unicode text support
- ✓File upload support
- ✓Download results
- ✓Swap input/output
- ✓100% client-side processing