Image to Base64 Converter
Upload any image and get its Base64 data URL instantly. Use for CSS, email HTML, or API payloads. No server upload.
Image to Base64 Converter
Upload any image and instantly convert it to a Base64-encoded data URL. Copy the result to embed images directly in CSS, HTML, or JSON.
Drop an image here, or click to browse
PNG, JPG, GIF, WebP, SVG, AVIF …
FAQ
What is a Base64 data URL?▼
A data URL encodes a file as a Base64 string directly inside a URL with the format data:[type];base64,[data]. This lets you embed images in HTML, CSS, or JSON without a separate file request.
Does my image get uploaded anywhere?▼
No. The conversion is done entirely in your browser using the FileReader API. Your image never leaves your device.
Why is the Base64 output larger than the original file?▼
Base64 encoding represents every 3 bytes of binary data as 4 ASCII characters, which increases the size by approximately 33%.
Frequently Asked Questions
What is a Base64 data URL?
A data URL embeds a file directly as a Base64 string with the format data:[mime-type];base64,[data]. This eliminates a separate HTTP request and is useful for CSS, email HTML, and API payloads.
Is my image uploaded to a server?
No. The conversion is done entirely in your browser using the FileReader API. Your image never leaves your device.
Which image formats are supported?
PNG, JPEG, GIF, WebP, SVG, BMP, and AVIF are all supported. The output preserves the original MIME type in the data URL.