Encoding tools / Base64
Base64 Encoder & Decoder
Encode Unicode text or a local file. Decode Base64 into text or download the exact bytes.
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About Base64
Base64 converts bytes into portable ASCII characters. Base64 is encoding, not encryption. Anyone can decode it. Standard Base64 uses + and / with padding; Base64URL uses - and _ and can omit padding. The decoder checks the selected alphabet, padding and unused bits.
Decoded bytes that are not valid UTF-8 can still be downloaded. Inputs and files stay in your browser. Files are limited to 2 MiB.
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