Image to Base64 Converter
Convert any image to a Base64-encoded string or data URI online. Upload a JPG, PNG, WebP, GIF, or SVG and copy the encoded output for use in HTML, CSS, JSON payloads, or API requests.
Drop an image here or click to browse
JPG, PNG, WebP, GIF, SVG — encoded in your browser, never uploaded
This image to base64 helps you finish the conversion quickly with a focused online workflow. It supports JPG, PNG, WEBP, GIF and SVG and is ideal for embedding small icons and logos directly in html or css, including images in email templates without file attachments and adding images to json api payloads or configuration files.
Unlike other tools, ConvertWiki focuses on speed, simplicity, and privacy. Your files are processed quickly and are not stored on any server.
You can use this tool for:
- Embedding small icons and logos directly in HTML or CSS
- Including images in email templates without file attachments
- Adding images to JSON API payloads or configuration files
How to use this tool:
- Upload your file or paste your content into the tool.
- The tool will automatically process it.
- Download the result instantly — no account required.
Why use ConvertWiki?
What is Base64 image encoding
Base64 encoding converts binary image data into a text string that can be embedded directly in HTML, CSS, or JSON — no separate image file or server request needed. It is commonly used for small icons, email-safe images, and data URIs.
Base64 strings are roughly 33% larger than the original binary file, so the technique is best suited to small images. For large images, hosting a file and referencing it with a URL remains more efficient.
Useful for
- Embedding small icons and logos directly in HTML or CSS.
- Including images in email templates without file attachments.
- Adding images to JSON API payloads or configuration files.
Frequently Asked Questions
Upload your image above. The Base64 string and data URI are generated instantly in your browser.
No. Base64 encoding happens entirely in your browser. Your image never leaves your device.
A data URI is a Base64 string prefixed with the MIME type, e.g. data:image/png;base64,.... It can be used directly as an image src in HTML or CSS.
JPG, PNG, WebP, GIF, and SVG are all supported.
Base64 output is roughly 33% larger than the original image file. It is best suited for small images and icons.
Yes, it is completely free with no signup required.