Base64 Encoder
Encoding & EscapingEncode text or a file to Base64
Plain text
Base64
TG9jYWxCZW5jaCBydW5zIGVudGlyZWx5IGluIHlvdXIgYnJvd3Nlci4=
About the Base64 Encoder
A Base64 encoder for text and files alike. Type text and the output updates live as you go, or upload an image, PDF, or any other file to encode its raw bytes directly — useful for building Basic Auth headers, data: URIs, and any format that needs binary-safe text.
Because file encoding happens by reading the raw bytes locally rather than uploading the file anywhere, it's safe to encode things like private keys, internal documents, or anything else you wouldn't want touching a third-party server just to get its Base64 representation.
How to Use the Base64 Encoder
Type or paste text, or click Upload file to encode a file's raw bytes.
Watch the Base64 output update live in the right-hand panel.
Copy the result for use in a header, data: URI, or config value.
Frequently Asked Questions
Is my text or file uploaded anywhere?
No. Both typed text and uploaded files are read and encoded entirely in your browser — nothing you type or upload is sent to a server.
Can I encode a file, not just text?
Yes — click Upload file to pick an image, PDF, or any other file. It's read as raw bytes and encoded directly, with an image preview shown alongside it, so you get the exact same Base64 you'd get from encoding the file on a server.
Does it handle non-English text and emoji?
Yes. Typed text is encoded as UTF-8 before Base64 conversion, so accented characters, non-Latin scripts, and emoji round-trip correctly — not just plain ASCII.
What is Base64 actually used for?
Embedding binary-safe data in places that only accept text — JSON payloads, URLs, Basic Auth headers, data: URIs for inline images, and email attachments (MIME).
Is Base64 the same as encryption?
No — Base64 is an encoding, not an encryption scheme. It's fully reversible by anyone with no key required (this site's own decoder does exactly that), so it provides no confidentiality. Don't use it to hide sensitive data from anyone who might look at it.