About the Base64 Encode / Decode
The Base64 Encode / Decode tool converts text to and from Base64 instantly. Base64 is widely used to embed images in CSS, store binary data in JSON, and encode credentials in HTTP headers. Paste your text or Base64 string and switch between encoding and decoding in one click — all locally in your browser.
How to use the Base64 Encode / Decode
- Paste your text or Base64 string.
- Click Encode or Decode.
- Copy the result.
Frequently asked questions
Is Base64 encryption?
No. Base64 is encoding, not encryption — it’s reversible by anyone. Never use it to secure sensitive data.
Is my data uploaded?
No. Encoding and decoding happen entirely in your browser.