Free Base64 Encoder & Decoder
Convert plain text, images, and files to Base64 strings, or decode Base64 data back into its original text or binary file format instantly.
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Select Mode
Choose between Text mode or File mode depending on your source data format.
Encode or Decode
Click Encode to convert to Base64, or Decode to restore the original plain text.
Copy Output
Copy your encoded data URL or string directly into your source code or stylesheet.
Frequently asked questions
Base64 is a binary-to-text encoding scheme used to represent binary data (like images or attachments) in ASCII string format so it can be safely transferred across text-based protocols like email (MIME) or embedded in JSON, HTML, and CSS.
No. Base64 is an encoding format, not an encryption method. Anyone can easily decode a Base64 string back to its original form. For confidential file protection, use our PDF Password Protect tool.
Yes. You can upload images or files directly in the File tab to generate ready-to-use Data URLs for HTML and CSS embedding.
Yes, Files Craft Base64 Converter is 100% free with no limits, fees, or file tracking.