Embed small images straight into HTML, CSS, emails or JSON as Base64 text, with ready-to-paste snippets. Or paste a Base64 string or data URL to see the image and save it as a file.
loading toolHow to convert an image to Base64
- Choose Image → Base64 and drop your images (or choose Base64 → Image and paste the code).
- Pick the format you need: data URL, HTML, CSS, Markdown or plain Base64.
- Copy the result, or download the decoded image.
Questions
When should I use Base64 images?
For tiny icons and logos that must travel inside a single file, like an email template or a JSON payload. For normal photos, a regular image file is faster.
Why is the Base64 text bigger than the file?
Base64 uses 4 characters for every 3 bytes, so it is about 33% larger than the original image.
Is my data private?
Yes. Everything happens inside your own browser: nothing you type or choose is uploaded to us or anyone else.
Is it free?
Completely free, with no sign-up, no watermark and no limit on how many times you use it. Light ads keep the site running.
