Base64 Image Converter
Encode PNG, JPG, GIF and SVG images into Base64 data URI strings, or decode Base64 back into a viewable image. Preview, copy and download the result without uploading anything, free in your browser.
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Last updated: 2026 · Free online tool
What is Base64 Image Converter?
Encode PNG, JPG, GIF and SVG images into Base64 data URI strings, or decode Base64 back into a viewable image. Preview, copy and download the result without uploading anything, free in your browser.
How to Use
- 1Select mode— Choose the Image→Base64 or Base64→Image tab.
- 2Input— Upload an image file or paste a Base64 string.
- 3Check results— View the preview, file information, and Base64 output.
- 4Copy/Download— Copy as Base64, Data URI, HTML, or CSS, or download the image.
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Frequently Asked Questions
PNG, JPEG, GIF, WebP, and SVG are supported.
Up to 5MB is supported. Try compressing larger files first.
Data URI includes the MIME type ('data:image/png;base64,...'), while Base64 is the pure encoded string.
Yes, use the Data URI directly in <img src> or use the HTML/CSS copy buttons.
No. All conversions are processed using the browser's FileReader API.