How base64 encode works
Encodes text as UTF-8 bytes, then standard Base64.
Try an example
Hello → SGVsbG8=.
Good to know
Base64 is encoding, not encryption. Input stays in this tab and is never sent to analytics. Limit 100,000 characters. No input is executed.
Your privacy
Processing happens on this device. We do not upload your input, put it in share links or save it to your favourites. Closing this tab discards the working input; downloaded results remain wherever you save them.