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Base64 encode and decode
Turn text or a file into Base64, or turn Base64 back into text or a file, on this device.
Base64 encode and decode. Turn text or a file into Base64, or turn Base64 back into bytes, on this device. Base64 is an encoding, not a secret.
The data stays on this device. Nothing is uploaded.
Limitations
The limit is 8 MB. Text uses UTF-8. Invalid Base64 stops with an error. Base64 is not encryption.
How it works
- Type, paste, or choose a local file when the tool asks for one.
- Review the count or the change.
- Copy or download. The source stays on this device.
Questions
Is my file uploaded?
No. Base64 encode and decode runs in this browser and the file is not sent.
Is Base64 encryption?
No. Anyone can decode it. Do not use it to hide a password or a private file.
What is the limit?
8 MB. Text uses UTF-8. Invalid Base64 stops with an error.