Encoding

Base64 Encoder/Decoder

Quickly encode and decode text and data.

Sensitive processing stays in your browser whenever possible.

Details

Base64 is not encryption; it only represents binary as transport-safe text. Many tokens and attachments use this format.

The tool is for quick troubleshooting, team training, and inspecting simple payloads—not a full traffic-analysis substitute.

Tips

  • Do not treat Base64 data as confidential; anyone can decode it.
  • In JWTs, header and payload segments are only Base64URL-encoded, not encrypted.
  • Be cautious before decoding large or suspicious inputs from untrusted sources.