Image to Base64 Converter

Other Popular Tools

Image to Base64

Include data: prefix (data:[mime];base64,)

Base64 output:

Base64 to Image

About This Tool

Image to Base64 Converter is a simple, easy-to-use online tool for converting between images and Base64. Upload an image to generate its Base64, or paste Base64 to restore it as an image for preview and download.

This tool is especially useful for frontend developers, for generating inline images, API data transfer, icon asset optimization and more. All operations run locally, keeping your data safe.

New to Base64 images? Read our guide on how to convert an image to Base64 — when data URLs are worth it, the ~33% size cost, and decoding back to a file.

Features

Image to Base64

Upload images in various formats and generate a Base64 string in one click, with an optional data: prefix.

Base64 to Image

Paste Base64 to preview the decoded image instantly, with download support.

Format support

Supports JPG, PNG, GIF and other mainstream formats for conversion and preview, auto-detecting the image type.

Local processing

All conversions run locally in the browser — nothing is uploaded, ensuring data security and privacy.

Tips

Image-to-Base64 increases size by ~33%, ideal for small icons and inline resources
Include the data: prefix to use it directly in HTML/CSS/JSON; backends can strip it
If pasting Base64 without a prefix, it defaults to image/png; you can add one yourself
Copy the result for API debugging, inline testing and cache optimization

How to use the Image to Base64 Converter

1.Upload or select your image.
2.The tool converts it to a Base64 string, with a live preview.
3.Copy the string or download it.

Image to Base64 Converter FAQ

What is image-to-Base64 conversion?

It encodes an image's binary data into a text string, so you can embed it directly in HTML, CSS, or JSON.

When should I use Base64 images?

For small icons and inline images where you want fewer HTTP requests. For large photos, a normal image file is usually better for performance.

Does conversion change my image?

No. The pixels stay identical — only the encoding changes from binary to text.

Is my image uploaded to a server?

No. Your image is read and converted locally in the browser, so the file itself is never uploaded anywhere.