Base64 Encoder / Decoder
Encode plain text to Base64, or decode Base64 strings back to readable text — instantly, in your browser.
How to use the Base64 Encoder / Decoder
- Type or paste your text or Base64 string.
- Click Encode to convert text to Base64, or Decode to convert Base64 back to text.
- Click Copy to copy the result.
Frequently asked questions
What is Base64 encoding used for?
Base64 encodes binary or text data into an ASCII string format, commonly used for embedding data in URLs, JSON, or emails.
What happens if I try to decode invalid Base64?
You'll see a clear error message letting you know the input isn't valid Base64.