New free tool

Image to Base64 Converter with Data URL Output

Convert small image files into Data URLs, raw Base64 strings, and HTML image snippets directly in your browser.

Quick answer

An image to Base64 converter turns a local image file into text that can be embedded in HTML, CSS, JSON, or code examples.

This page produces both the full Data URL and the raw Base64 payload.

Best inputs for Base64 images

Use small assets

Base64 output is longer than the original file, so tiny icons and prototypes are the best fit.

Compress first if needed

Use a smaller source image when the output will be pasted into code or documentation.

Free ToolBrowser-only conversion

Image to Base64 Converter

Convert a local image into a Data URL, raw Base64 payload, or HTML image snippet.

Drop image here or click to upload

Supported format: JPG / PNG / WEBP / GIF, max 5MB

The file is read as a browser Data URL. It is not uploaded, but Base64 output can become much larger than the original file.

Base64 output

Copy the full Data URL for CSS/HTML, or raw Base64 for code fields that already include the MIME type.

Data URL

Raw Base64

HTML snippet

Practical note

Data URLs are convenient for tiny icons or prototypes, but regular image files are usually better for large production assets.

Example

Convert a tiny 2 KB PNG icon to a Data URL and paste it into a prototype or documentation snippet.

Assumption

The image is small enough to embed as text without making your HTML, CSS, JSON, or README difficult to maintain.

Limitation

Large Base64 images increase document size and cannot be cached as separate image files by browsers.

Suggested workflow

Inline image snippet path

Use this path when a tiny visual asset needs to become a code-friendly Data URL.

Step 1

Compress image first

Reduce file size before turning a small asset into text.

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Step 2

Convert to Base64

Generate the Data URL, raw Base64, or HTML snippet locally.

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Step 3

Encode text separately

Use the text Base64 tool when your input is plain UTF-8 text.

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Related tools

Related image and encoding tools

Base64 Encoder & Decoder

Encode and decode UTF-8 text locally.

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Image Compressor

Compress images before converting tiny assets to Base64.

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Favicon Generator

Generate favicon PNG sizes from a local image.

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Frequently asked questions

Does this image to Base64 converter upload my image?

No. The image is read locally with the browser FileReader API and converted into a Data URL on your device.

Which image formats are supported?

The tool accepts JPG, PNG, WEBP, and GIF images up to 5MB.

What is the difference between Data URL and raw Base64?

A Data URL includes the MIME type prefix such as data:image/png;base64,. Raw Base64 is only the encoded payload after the comma.

Should I use Base64 for large images?

Usually no. Base64 is convenient for tiny inline assets, but regular image files are better for large production images.