Developer

Base64 encoder

Encode text or files to Base64 format. Essential for embedding assets in code.

URL-safe encoding (+ → - , / → _)

100% private. All processing happens locally in your browser — no files or data are ever sent to a server.

How to use Base64 encoder

01 Paste or type your input into the text field provided
02 The output generates instantly as you type
03 Click Copy to send the result straight to your clipboard

Frequently asked questions

Common questions about Base64 encoder.

Is Base64 encoder free to use?

Yes, Base64 encoder is completely free. No account, subscription, or payment is ever required — just open the page and start using it.

Does Base64 encoder upload my data to a server?

No. Base64 encoder runs entirely in your web browser using client-side JavaScript. Your files, text, and data never leave your device, making it 100% private.

Can I use Base64 encoder on my phone or tablet?

Yes. Base64 encoder is fully responsive and works on all modern smartphones, tablets, and desktop browsers without installing any app.

Does Base64 encoder work without an internet connection?

Yes. Once the page has loaded, Base64 encoder works fully offline — all processing is done locally in your browser.

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About Base64 encoder

Base64 is an encoding scheme that converts binary data into a sequence of printable ASCII characters, allowing binary content to be safely transmitted through text-based protocols like email, JSON, and XML. The Base64 Encoder converts any text or string input into its Base64 representation. Common uses include encoding credentials in HTTP Basic Authentication headers (`Authorization: Basic <encoded>`), embedding small assets as data URIs in CSS and HTML, and handling binary data in REST API responses and JWT token construction.