Is Base64 encryption?

No. Base64 is an encoding, not encryption — anyone can decode it. Never use it to protect a secret.

What is URL-safe Base64?

A variant that replaces + and / with - and _ so the string can be used inside a URL without escaping.

Why did my decoded text look like nonsense?

The input was probably binary data such as an image rather than text. Use the file mode to download it instead.

ToolMano

Base64 encoder & decoder

Encode text or files to Base64 and back.

No uploadNo signupWorks offline

Text to encode

Direction

Enter text or a file above to see a result.

Input bytes

0 B

Output bytes

0 B

Input chars

Output chars

Or convert a file to Base64

Drop files here or click to choose

Encodes any file straight to Base64 or a data URI

Up to 20 MB

Quick presets

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About base64 encoder & decoder

Base64 encoder converts text to Base64 and decodes Base64 back to readable text, and can turn a small image into a data URI you can paste straight into CSS or HTML.

Base64 strings frequently contain credentials, tokens and private keys. Decoding them in a browser tab instead of on someone else's server is the safer habit, and it is the only mode this tool supports.

How to use Base64 encoder & decoder

1Paste text or Base64, or choose a file.
2Pick Encode or Decode.
3Copy the output or download the decoded file.

What it does

Unicode-safe text encoding and decoding
File to data URI conversion
URL-safe Base64 variant
Fully offline once loaded

Frequently asked questions

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