Base64 Decoder

Decode Base64 back to text.

How Base64 decoding works

Decoding reverses the encoding: each group of 4 Base64 characters becomes 3 bytes. Whitespace is ignored and missing "=" padding is tolerated.

The bytes are then read as UTF-8 text. If they are not valid UTF-8 (for example an image), you will see an error instead of garbled characters.

Processed locally in your browser — your input is never uploaded.

What is Base64 Decoder?

Decode Base64 back to text. Decoding reverses the encoding: each group of 4 Base64 characters becomes 3 bytes. Whitespace is ignored and missing "=" padding is tolerated.

Is Base64 Decoder free to use?

Yes. Base64 Decoder on DevCipher is completely free, with no sign-up, no limits and no ads.

Is my data safe when I use Base64 Decoder?

Yes. Everything runs locally in your browser. Your input is never uploaded to a server, and sensitive values such as keys and tokens are never saved.

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