Base64 Encoder & Decoder

How this tool works

Base64 represents bytes as printable characters and is often used to carry data in text-based formats. It is an encoding format, not encryption: anyone who receives the encoded text can decode it.

How to use it

1. Paste ordinary text into the input area.
2. Choose Encode to create Base64 text, or paste Base64 text and choose Decode.
3. Review the output and copy it when it matches your expected result.

Example and practical tips

The word “Hello” encodes to “SGVsbG8=”. This is a reversible representation of the text, not a way to keep a secret safe.

Use Base64 for data formatting, demonstrations and compatible text payloads. Do not use it to protect passwords, private keys or confidential information. Decoding requires valid Base64 input; if the input is malformed, the tool reports an invalid value.

Frequently asked questions

Does Base64 secure my data?

No. Base64 is encoding, not encryption or password protection.

Why does the decoded result look wrong?

Check that the input is valid Base64 and was created from the intended text encoding.