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Base64 Encoder / Decoder
Encode or decode Unicode text as Base64.
✓ Free to use✓ No sign-up✓ Runs in your browser
Base64 Encoder / Decoder
Encode or decode Unicode text as Base64.
Maximum input: 1 million characters. Decode uses the last encoded result when the input has not changed. Everything stays on your device.
QUICK GUIDE
How to use Base64 Encoder / Decoder
Encode or decode Unicode text as Base64. Choose your options above and use the available action to get your result.
Privacy first
Processing happens in your browser. No account or server upload is required.
GOOD TO KNOW
Frequently Asked Questions
Does Base64 keep my text secret?
No. Base64 is reversible encoding, not encryption. Anyone with the encoded text can decode it.
Can I encode accented letters or emoji?
Yes. The text encoder supports Unicode, including accented characters and emoji.
What should I enter when decoding?
Paste a valid Base64 string and choose Decode. Invalid Base64 input cannot be decoded correctly.
When is Base64 useful?
Use it when an API or data format expects text represented as Base64, not as a password-protection method.