Base64 Encode / Decode
Encode and decode Base64 strings.
Processed on your device. Inputs are not uploaded.Runs locally in a background worker
How to use
Choose encode for ordinary text or decode for Base64, then run the conversion.
Example
Encode “Hello, world!” as SGVsbG8sIHdvcmxkIQ==.
Limitations
Base64 is encoding, not encryption. Input and decoded output must be valid UTF-8 text.
Privacy
Your input stays in browser memory while you use this page. It is not uploaded or saved. Downloads are saved only when you choose to save them.