Image Base64

Convert images to data URIs and back, directly in your browser

Also try: SVG to PNG | PNG ↔ JPG

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Your file never leaves this device

When should I use Base64 encoded images?

Base64 data URIs let you embed images directly in HTML, CSS, or JSON without separate file requests. This technique can improve performance for small images by eliminating HTTP roundtrips, but increases file size by approximately 33%.

Best use cases for Base64 images

Output formats explained

The decode mode extracts embedded images from Base64 strings or data URIs, converting them back to downloadable files. All encoding and decoding happens entirely in your browser. Your images and data never leave your device, and no information is sent to any server.