Image to Base64 → Base64
Convert image to Base64
About the Base64 Image Converter
This tool converts images to Base64 text strings and decodes Base64 strings back into images. Base64 encoding lets you embed an image directly inside HTML, CSS, JSON, or an email template as a data URI — no separate image file or extra network request needed.
Developers use it for small icons and logos embedded in stylesheets, email signatures, API payloads that must carry an image inline, and quick tests. Encoding and decoding run entirely in your browser.
How to use it
- To encode: upload an image and copy the generated Base64 string or ready-made data URI.
- To decode: paste a Base64 string and preview the reconstructed image.
- Download the decoded image if needed.
- Use the copy button to grab the result in one click.
Frequently asked questions
What is a data URI?
A string like data:image/png;base64,... that carries the whole image inline. You can use it directly in an <img> src attribute or a CSS background-image.
Does Base64 make files bigger?
Yes, about 33% larger than the binary original. That is why it suits small images — icons, logos — rather than large photos.
When should I embed images as Base64?
When avoiding an extra HTTP request matters more than size: small icons in CSS, images in emails, or payloads that must be self-contained.
Is my image kept private?
Yes. Conversion happens locally in your browser; the image is never uploaded.