Is the base64 encoder / decoder free?

Yes — 100% free, no signup, no usage limits.

Does it save my data?

No. Inputs are processed in your browser and never uploaded to a server.

Yes. The interface is fully responsive and works on iOS and Android.

No. Base64 is encoding, not encryption — anyone can decode it. Use it for data transport, not for secrecy.

Encode or decode text and files to/from Base64. Local, instant, no server.

Encode file…

Input

Output

SGVsbG8sIFdlYkdlbkFJIQ==

Base64 is an encoding scheme that converts binary data into ASCII text.