Base64 Encoder
Encode text or files to Base64, including data URLs, instantly in your browser. Nothing is uploaded.
How it works
- 1
Paste your input
Type or paste your data into Base64 Encoder.
- 2
Adjust options
Tweak the available settings — the output updates as you type.
- 3
Copy the result
Copy the output to your clipboard or download it as a file.
Common uses
- Encode an image as a data URL to inline in CSS or HTML.
- Turn text or a small file into Base64 for an API field.
- Prepare a Base64 payload for a config or token.
About the Base64 Encoder
Encode text or files to Base64, including data URLs, instantly in your browser. Nothing is uploaded.
Base64 Encoder is part of a free, privacy-first toolkit. Everything is computed instantly on the client, so your data never leaves the page — useful when you're working with sensitive payloads.
Because base64 encoder works without any sign-up or installation, you can use it as often as you like and it's always available — on desktop or mobile, and even offline.
Explore more developer tools, or try JSON Formatter · JSON Validator.
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Base64 Encoder — FAQ
Yes. Text is UTF-8 encoded before Base64, so emoji and non-Latin characters round-trip correctly.