Image to Base64 Converter

Read image file bytes locally in the browser and convert them into raw Base64 text or a full data URL.

Result
Waiting for image

The image bytes were converted into Base64 text locally in your browser.

File Size
0 B
Output Length
0
Mode
Raw Base64
MIME Type
N/A
Base64 Output

How The Converter Works

The browser reads the selected image file with FileReader and returns either the raw Base64 payload or the full data URL string.

This is an encoding step, not a visual transform, so the original image bytes are preserved in the encoded output.

Quick Examples

Raw Base64 is useful for APIs, fixtures, and transport strings.
Data URLs are useful for direct HTML, CSS, or markdown embedding.
The output is larger than the original binary file because Base64 adds overhead.
Local encoding is useful for assets you do not want to upload elsewhere.

Frequently Asked Questions

Does this change the image format?

No. Base64 encoding preserves the original bytes. MIME type metadata is included only when you keep the full data URL form.

Why offer raw Base64 and data URLs?

Different destinations expect different formats, so the tool supports both common outputs.

Can I use PNG, JPG, GIF, and WebP here?

Yes. Any regular image format the browser can read as a file should work.

Can large images create very long output?

Yes. High-resolution images can create very large text strings that are harder to copy and render.

Useful Notes

Base64 is convenient for embeds and transport, but it is not efficient for very large assets.

Because the tool only reads the file, there is no lossy conversion or canvas re-encoding step here.

The MIME type stays important when you later use the encoded string in another context.

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