Image to Base64

Convert an image to a Base64 string or a ready-to-paste Data URL instantly—free, no signup, and fully in-browser.

File size
0 B
MIME
—
Dimensions
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Upload an image

Drag & drop or choose a file. Encoding happens locally in your browser for speed and privacy.

🖼️
Drop an image here, or click to browse
PNG, JPG/JPEG, GIF, WebP • Up to 5 MB
Output
Wrapping is disabled for Data URLs to avoid breaking copy/paste.
Actions
Tip: For production sites, prefer external files for larger images. Base64 is best for small assets where fewer requests matter more than payload size.

Preview & output

Image preview
Upload an image to generate a preview and output.
Size
0 B
MIME
—
Dims
—
Choose an image above to generate output.

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Free Image to Base64 converter (no signup)

This free Image to Base64 Converter turns image files (PNG, JPG/JPEG, GIF, or WebP) into a Base64-encoded string or a complete Data URL you can paste into HTML, CSS, or JSON instantly. Because everything runs in your browser, it’s a fast, private option when you need a quick “image to base64 string” output without uploading files anywhere.

When Base64 makes sense

Base64 is a practical choice for small assets where simplicity matters: a tiny logo, a UI icon, a placeholder image, or an inline background. In those cases, an “image to data url” can reduce requests and keep a prototype self-contained. For large images, external files are usually better because Base64 increases the payload size and can slow downloads.

Data URL vs Base64-only

  • Data URL: Includes the prefix (for example, data:image/png;base64,) so you can paste it directly into a CSS url(...), an HTML img tag, or a config file.
  • Base64 only: Just the encoded string, useful when an API or tool expects the raw Base64 value.

Tips for clean output

  • Keep images small (icons and small UI assets work best).
  • Copy the Base64-only string for APIs, and copy the Data URL for HTML/CSS embedding.
  • Turn wrapping off if your destination expects a single uninterrupted string.

Frequently Asked Questions

Is this Image to Base64 converter free to use?
Yes. It’s free and works instantly with no signup. Encoding runs in your browser, so you can convert images without uploading them to a server.
What image formats are supported?
Most common formats are supported, including PNG, JPG/JPEG, GIF, and WebP. The exact MIME type is read from the file you select.
What’s the difference between Base64 and a Data URL?
Base64 is the raw encoded string. A Data URL includes a prefix like “data:image/png;base64,” so it can be pasted directly into HTML, CSS, or JSON.
Will converting to Base64 make my image larger?
Yes. Base64 encoding typically increases size compared to the original binary file, so it’s best for small assets like icons, tiny UI images, or quick prototypes.
Is my image uploaded or stored anywhere?
No. This tool reads the file locally using your browser and generates the Base64 output on-device. Nothing is sent to Tool Vault servers.
Why would I wrap the Base64 output into lines?
Some systems, templates, or tooling are easier to read with wrapped output. If you need a single uninterrupted string, turn wrapping off.
Tool Vault • Image to Base64 Converter • Fast, private, instant — no signup.