Image to Base64
Convert an image into a Base64 data URI for inline embedding in HTML, CSS or JSON. Copy the data URI, the raw Base64, or ready-made <img> and background-image snippets. Encoded locally in your browser.
How to use Image to Base64: Open Image to Base64 — no sign-up or software download is required. Drag and drop your file(s) into the tool, or click to browse and select them from your device. Choose any options you need, such as order, quality, page range or output format. Everything runs inside your browser, so your data never leaves your device.
Click to browse, drop, or paste images
Convert an image to a Base64 data URI for inline embedding. Encoded locally; never uploaded.
Convert an image into a Base64 data URI for inline embedding in HTML, CSS or JSON. Copy the data URI, the raw Base64, or ready-made <img> and background-image snippets. Encoded locally in your browser. Image to Base64 is a free, browser-based tool in the Filevane image tools collection — there is nothing to install, no account to create and no watermark on your results. It works on desktop, tablet and mobile, and because the work happens on your own device it stays fast even with large inputs.
How to use Image to Base64
- Open Image to Base64 — no sign-up or software download is required.
- Drag and drop your file(s) into the tool, or click to browse and select them from your device.
- Choose any options you need, such as order, quality, page range or output format.
- Click the action button and let the tool process everything locally in your browser.
- Download the finished file. Your originals are never changed or uploaded.
Why use Image to Base64?
- 100% free with no limits, no sign-up and no watermarks.
- Private by design — your files are processed in your browser and never uploaded to a server.
- Fast and lightweight, with instant results even on a phone or a slow connection.
- Works everywhere — any modern browser on Windows, macOS, Linux, Android or iOS.
- Part of a full image tools suite, so related image to base64 tasks are one click away.
Is it private and secure?
Your privacy is built in. Image to Base64 does all processing on your own device using client-side code, so your files are never transmitted, stored or seen by anyone — including us.
Network activity: none. Nothing is sent and nothing is fetched. This tool makes no network request at all once the page has loaded — which is why it keeps working if your connection drops.
You do not have to take that on trust — our privacy proof page publishes the Content-Security-Policy that enforces it, lists every third party it permits, and shows how to verify the whole claim yourself.
Learn more
Image Optimization: Compress, Resize and Convert — Faster pages and smaller files start with good images. Learn how to compress, resize and convert images without wrecking quality.
Frequently asked questions
What is a Base64 data URI?
It’s the image encoded as text (data:image/…;base64,…) that can be embedded directly in HTML, CSS or JSON, so the browser doesn’t need a separate file request.
When should I inline images as Base64?
For small assets like icons and tiny backgrounds, inlining removes an HTTP request. For large images it’s counter-productive — data URIs are about 33% larger than the file and can’t be cached separately.
Is my image uploaded?
No. Encoding happens locally in your browser using the FileReader API.
Related tools
See all free image tools or browse the full tool catalogue.