Encode Image to Base64
Decode Base64 to Image
About the Toolzify Base64 Image Converter
Toolzify built this Base64 image converter for designers, frontend engineers, and marketers who need quick data URIs without bulky software. Converting images to Base64 is useful for embedding assets in CSS, HTML, or JSON payloads where file hosting is unavailable. This tool keeps the workflow private, fast, and free of distracting ads.
What problem it solves
Switching between editors or command-line scripts to encode images slows down experimentation. Some online converters compress images unexpectedly or leak uploads. Toolzify processes files locally in the browser when possible, preserving quality and keeping your assets out of third-party databases.
How it works
When you upload an image, the tool reads it in-memory, encodes it using Base64, and prefixes the proper MIME type so you get a ready-to-use data URI. Decoding reverses the process: the tool reads your Base64 string, rebuilds the binary, and renders a preview so you can download the restored file. Error checks ensure the input matches an expected image type before processing.
Step-by-step guide
- Upload a PNG or JPEG and click Encode to get a Base64 data URI.
- Copy the output for use in inline CSS backgrounds, HTML img sources, or JSON fixtures.
- To decode, paste an existing data URI or Base64 string, then choose Decode & Download.
- Preview the decoded image, then download or reuse it as a normal file.
Use cases
- Embedding tiny icons or logos in CSS for email templates where external links are blocked.
- Bundling demo images in JSON for mock APIs or design system documentation.
- Sharing quick prototypes without setting up CDN hosting.
- Restoring images from Base64 payloads sent by users or CRM exports.
Benefits and limits
Data URIs reduce HTTP requests for small assets, but they increase payload size by roughly 33 percent. Use them for icons and inline assets, not large photos. Toolzify keeps your uploads local for privacy, but very large images can stress browser memory; resize before encoding for best performance. Always test email clients and legacy browsers, since some have limits on data URI size.
FAQs
Do you store my images? No. Files are processed for the session only and are not saved on Toolzify servers.
Which formats are supported? PNG and JPEG are supported here; use the Image Converter for other types before encoding.
Why does my Base64 fail to decode? Check that the string includes the MIME prefix (e.g., data:image/png;base64,) and that padding has not been removed.
Is Base64 good for production assets? Only for small, frequently used assets. For large images, host them on a CDN to keep pages light.
Can I edit the image? Use the Image Editor first to crop or resize, then return here to encode the final asset.