How to use the Base64 Encoder / Decoder
- 1Paste your text or Base64.
- 2Select Encode or Decode.
- 3Copy the result.
Supported formats and limits
- Encoding uses UTF-8, so any character is supported.
- Decoding validates the input and reports malformed Base64.
- Whitespace inside Base64 input is ignored when decoding.
Common uses
- Embedding small data in JSON or HTML.
- Decoding a Base64 value from an API.
- Preparing credentials for a basic-auth header.
Frequently asked questions
Is Base64 encryption?
No. Base64 is an encoding, not encryption — anyone can decode it. Never use it to protect secrets.