Base64 Decoder
Paste a Base64 string to decode it back into text. Both standard and URL-safe variants are supported.
Characters
34
Bytes
34
Decoded text
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Formula
Every 4 Base64 characters decode back into 3 bytes.
Example
Input
SGVsbG8=
Result
Hello
Frequently asked questions
Most often a truncated string, incorrect padding, or characters that are not part of the Base64 alphabet.
It decodes to text. For binary files, use a tool that produces a downloadable file.
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