📥 Input
📤 Output
Drop a file to encode
or
Any file type · Max 10 MB
Drop an image to convert to Data URI
or
JPG, PNG, WebP, GIF, SVG · Max 5 MB
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How to Use
- Text — paste text, hit Encode or Decode. Unicode is fully supported.
- File — drop any file (up to 10 MB) to get its Base64 representation.
- Image — drop an image to get a ready-to-use
data:image/...URI.
Frequently Asked Questions
Is my data sent to a server?
No. Everything happens in your browser. Nothing is transmitted.
What is Base64?
Base64 is a way to encode binary data as ASCII text using 64 characters. It's commonly used to embed images directly in HTML/CSS, pass data in JSON, or send attachments through text-only protocols.
Does Base64 encrypt my data?
No! Base64 is encoding, not encryption. Anyone can decode it instantly. Never use it to protect sensitive data — use real encryption instead.
Does Base64 make my data smaller?
No — it makes it larger. Base64 encoding increases size by about 33%. It's used for compatibility, not compression.
What is a Data URI?
A Data URI embeds a file directly into HTML or CSS as data:image/png;base64,.... Useful for small icons and reducing HTTP requests.