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Encode any image to a Base64 data URI text string, or decode a Base64 string back into a downloadable image file instantly. 100% secure and runs inside your browser.
Drag & drop an image to get its Base64 code, or paste any Base64 data URI/string to convert it back to an image.
Instantly view the decoded image preview or copy code snippets formatted for HTML, CSS, and Markdown.
Copy the raw string or download the generated image file directly to your device with one click.
Easily switch tabs between encoding images to Base64 strings and decoding Base64 strings back to images.
Your images and text strings are processed locally within your browser. No files are uploaded to any server.
Get pre-formatted integration codes ready to drop into HTML source, CSS stylesheets, or Markdown files.
Compatible with all standard web graphics including PNG, JPG, JPEG, GIF, WebP, and SVG files.
Quick answers about tools, privacy, limits, and pricing.
Base64 encoding converts binary image data into a text string representation. Using Base64 data URIs allows you to embed images directly inside HTML, CSS, or JSON files. This reduces the number of HTTP requests a web page has to make, improving load times for small icons or logos.
Yes. Converting large images into Base64 creates extremely long text strings, which can slow down your browser or increase HTML document sizes unnecessarily. It is recommended to use Base64 primarily for small images, icons, and logos (typically under 100 KB).
Absolutely! The conversion runs completely client-side in JavaScript using the FileReader and Canvas APIs. Your images and strings never leave your browser, making the tool 100% safe and secure.
Our tool automatically generates the copyable code snippets for you. For HTML, you use '<img src="data:image/png;base64,..." />'. For CSS, you use 'background-image: url("data:image/png;base64,...")'.
Yes. PNG, GIF, WebP, and SVG formats preserve their transparency settings when converted to Base64 and vice versa.
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