Base64 Decoder

Decode Base64 data back to readable text online. Free, private, and 100% client-side.

Character set

Input

Output

Local only

Recent history

No history yet

How to use

Paste the Base64 string into the input box.
Select the target character set.
Read the decoded text in the output.

Frequently asked questions

What can I decode with this tool?: Any standard Base64 string, including data found in emails, APIs, and data URIs.
What happens with invalid Base64?: The tool reports an explicit 'Invalid Base64 input' error instead of silently producing garbage.