Base64 Encoder & Decoder

Encode and decode text and files to Base64 — with file import support (text, images, PDF, ZIP, audio, video, and more). Fast, secure, and works entirely in your browser.

Free online Base64 encoder and decoder with file upload support (text, images, PDF, ZIP, audio, video, and more). Convert text or any file to Base64 and back. Works fully in your your browser with no data uploaded.

This free Base64 encoder and decoder lets you convert text, JSON, HTML, CSS, JavaScript, images, PDF, ZIP archives, audio, and video files to Base64 and back. It is ideal for embedding images in HTML/CSS, sending binary data through JSON or APIs, and debugging Base64 payloads.

You can paste text or Base64 directly, or upload a file and instantly get its Base64 representation. The tool supports Data URL prefixes (data:mime/type;base64,...) and works entirely in your browser without uploading any data to a server.

Input (Text or Base64)

Drag & Drop a file here or click to choose

Include Data URL prefix (data:mime/type;base64,...)

📁 Upload File

Output

Base64 Encoder & Decoder – FAQ

Is this Base64 tool safe to use?

Yes. All encoding and decoding happens directly in your browser. No data is uploaded to any server.

What file types can I convert to Base64?

You can convert text, images, PDF, ZIP archives, audio, video, and more to Base64, then use the output in HTML, CSS, JSON, or APIs.

What is the Data URL prefix used for?

The Data URL prefix like data:image/png;base64,... is used to embed images or files directly in HTML or CSS without separate files.

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Base64 Encoder & Decoder

Base64 Encoder & Decoder – FAQ

Is this Base64 tool safe to use?

What file types can I convert to Base64?

What is the Data URL prefix used for?