Base64 decoder
Paste valid Base64 data to recover the original text.
Decode Base64 data as UTF-8 text.
About this tool
The Base64 decoder converts valid Base64 data back into UTF-8 text. It rejects malformed input instead of guessing at missing or invalid characters. Use it to inspect a small API field, read encoded configuration text, or verify a Base64 value created during a test. Base64 changes how bytes are written but provides no secrecy, so decoded content should be handled with the same care as the original.