Image tool
Image to Base64 Converter
Turn an image into a Base64 data URI, plus ready-to-paste HTML and CSS snippets.
Free｜No sign-up｜Files stay on your device
Drop files here, or click to choose
Files are processed on your device and never uploaded
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Support us／Ko-fiAbout Image to Base64 Converter
Base64 lets you embed an image directly in HTML, CSS or JSON — one less network request, and handy for single-file pages or email templates.
You get the data URI, an img tag and a CSS background rule, each ready to copy.
Great for
- ・Inline icons in HTML emails
- ・Single-file HTML reports or offline pages
- ・Front-end testing and mock data
How to use
- 01Choose an image.
- 02Copy the Data URI, HTML or CSS snippet you need.
Why use it
Private by design
Everything runs locally in your browser. Nothing passes through a server.
Instant
No software to download and no account to create.
Works everywhere
Desktop, phone, or tablet — any modern browser.
Free forever
No watermarks and no usage limits.
Frequently asked questions
When should I use Base64 images?
+
For small icons, email templates or single-file HTML pages. Large images grow by about 33% and can't be cached separately, so they're better as normal files.
Is this tool free? Do I need an account?
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It's completely free. There's no sign-up, no login and no usage limit.
Are my files and data safe?
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Everything is processed inside your browser. Your files are never uploaded to our servers and disappear when you close the page.
Does it work on my phone?
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Yes. The page is fully responsive and works in current versions of Chrome, Safari and Edge on iPhone, Android and tablets.
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