Image to Base64

Encode an image as a Base64 data URL, raw Base64, or a ready-to-paste CSS / HTML snippet.

Runs in your browser

PNG, JPG, JPEG, WEBP, GIF, SVG, BMP, AVIFTXT100% local · no upload

Output format

Guide

How to convert image to base64

Choose an image
PNG, JPG, WebP, GIF, SVG, BMP or AVIF up to 50 MB.
Pick an output format
Data URL for direct use, raw Base64 for an API, or a ready-made CSS / HTML snippet.
Copy the text
Paste the snippet into your stylesheet or markup — no extra request needed.

Format details

Input formats: PNG, JPG, JPEG, WEBP, GIF, SVG, BMP, AVIF
Output format: TXT
Privacy: No upload · processed locally

Frequently asked questions

When should I inline an image?

Small icons and logos (< 5 KB) benefit: inlining removes an HTTP request. Larger images are better served as files because Base64 inflates size by ~33%.

Does Base64 compress the image?

No — it re-encodes the same bytes as text, so the payload grows by about a third. Compress the image first.

Is the file uploaded?

No — encoding runs locally in your browser, which matters for private images.

Keep converting

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