Does it handle non-English characters?

Yes. It encodes through UTF-8 explicitly, so café, 日本語, and emoji round-trip correctly. Many browser Base64 tools use raw btoa and mangle exactly these.

Can I encode a certificate or a file?

Paste text of any kind. For binary files, this tool takes text input — encode the file with your OS tooling instead.

encoders · free tool

Base64 Encode

Encode text to Base64 — payloads, certificates, attachments.

Runs in your browser — your data never leaves it

Input

Paste, type, or drop a file. Runs as you type.

Output

Output appears here as you type.

Worked example

Input

hello

Output

aGVsbG8=

This example is one of Base64 Encode's test cases — if the tool stopped producing this output, the build would fail.

Questions

Does it handle non-English characters?: Yes. It encodes through UTF-8 explicitly, so café, 日本語, and emoji round-trip correctly. Many browser Base64 tools use raw btoa and mangle exactly these.
Can I encode a certificate or a file?: Paste text of any kind. For binary files, this tool takes text input — encode the file with your OS tooling instead.

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JWT DecoderEncoders

Read a JWT's header and claims — it never leaves your browser, and we never verify the signature.