Base64 Encoder & Decoder – Text & File Converter (Free Online)

Base64 Encoder & Decoder – Text & File Converter

Use this free Base64 Encoder & Decoder to convert text or files into Base64, and decode Base64 back into text or files. Everything runs in your browser—secure and private.

Contents: Base64 Tool • Uses • FAQ

Base64 Encoder & Decoder

Input (text or Base64)

Optional: upload a file to encode

Output

Why Use a Base64 Converter?

• Embed images in HTML/CSS directly with Base64.
• Send binary data in JSON or APIs safely.
• Encode files to transmit over text-only channels.
• Decode Base64 received from APIs back into readable text or files.

FAQ – Base64 Encoder & Decoder

Is Base64 secure?

No. Base64 is encoding, not encryption. It hides binary but doesn’t secure it. For security, use encryption.

Can I encode images?

Yes. Upload an image file, and the tool outputs Base64 (data URI without prefix).

Can I decode huge files?

Browser memory is the limit. For very large files, use a CLI tool.