Image to Base64 Converter
Convert an image file into a Base64-encoded data URI, ready to paste directly into HTML, CSS, or JSON.
Drop an image here, or click to browse
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Frequently asked questions
When is it actually a good idea to inline an image as Base64?+
Small icons or images used in email (where external images often get blocked) are the main good use cases. It removes an extra network request at the cost of inflating the surrounding file's size.
Why is the encoded output bigger than the original file?+
Base64 encoding represents binary data as text, and that text representation is roughly 33% larger than the raw bytes it encodes. That overhead is the tradeoff for embedding an image directly as text.
Should I use this for large photos on a normal web page?+
No, for anything beyond a small icon, a normal image file reference (with proper caching and lazy loading) will load faster and keep your HTML/CSS from bloating.