Base64 encoder

Base64 encoder represents supplied text using the Base64 alphabet. Use it to prepare a small test value for an integration, inspect an encoded payload, or compare the original text with a representation that can be carried through text-oriented systems.

How to use Base64 encoder

1. Paste the exact content to encode, including meaningful whitespace.
2. Submit the form and copy the complete encoded result.
3. Decode the value in a separate check when you need to confirm a round trip.

Example and interpretation

The plain text Hello becomes SGVsbG8=. The final equals sign is padding in this example, so do not remove it merely because it looks like extra punctuation.

Compare the output with a small known example before using it in an integration. Copy the complete value, including meaningful punctuation and padding. Encoding changes a representation; it does not establish that the underlying content is trustworthy.

Limits to consider

Base64 is an encoding rather than encryption, password hashing, or compression. Anyone able to decode the representation can recover its contents. Encoding text here does not automatically add a data URI header, produce a URL-safe variant, or validate the application that will consume it.

Questions about Base64 encoder

Can Base64 protect a password?

No. Reversible encoding should not be used as password protection.

Why does copying every character matter?

The encoded sequence, including padding when present, is the value needed for a reliable round-trip check.

Related tools

Base64 decoder checks the reverse text transformation. Image to Base64 handles an image-file input instead of typed text. URL encoder performs a different encoding for URL components.