About this tool
Turn an image or SVG markup into a Base64 data URI for an embedded asset. Review the resulting string before placing it into HTML or CSS, especially when the original asset is large.
Calculations and file processing run in this browser tab. The tool does not send working inputs or files to our hosting server.
मुख्य इनपुट और नियंत्रण हिंदी में देखने के लिए ऊपर “🇮🇳 हिंदी में देखें” चुनें। गणना और फ़ाइल प्रोसेसिंग इसी ब्राउज़र टैब में होती है; टूल आपके इनपुट हमारी होस्टिंग पर नहीं भेजता।
Features
- Encode selected image bytes or entered SVG markup as a data URI.
- Review a Base64 representation suitable for an HTML or CSS draft.
- Inspect the encoded size before choosing whether to inline the asset.
Benefits
- Prepare a self-contained reference for a small icon.
- Compare the encoded size before choosing inline delivery.
Who should use this tool?
- Web developers embedding small assets.
- Designers preparing an HTML or CSS snippet.
How to use
- Choose a supported image or enter the SVG markup you want to encode.
- Run the tool and inspect the generated data URI and encoding report.
- Copy or download the text and test it in the intended HTML or CSS context.
Try these worked examples
| Scenario | Example inputs | Example result |
|---|---|---|
| Encode 64×64 Blue Circle SVG Icon to Data URI | Paste SVG Markup (or upload any PNG/JPG/WebP file below): <svg xmlns="http://www.w3.org/2000/svg" width="64" height="64"><circle cx="32… | data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI2NCIgaGVpZ2h0PSI2NCI+PGNpcmNsZSBjeD0iMzIiIGN5PSIzMiIgcj0iMjgiIGZpbGw9IiMxZDRlZDgiLz48L3N2Zz4= |
| Encode Green Check Badge SVG to Data URI | Paste SVG Markup (or upload any PNG/JPG/WebP file below): <svg xmlns="http://www.w3.org/2000/svg" width="48" height="48"><rect width="4… | data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI0OCIgaGVpZ2h0PSI0OCI+PHJlY3Qgd2lkdGg9IjQ4IiBoZWlnaHQ9IjQ4IiByeD0iOCIgZmlsbD0iIzA1OTY2OSIvPjwvc3ZnPg== |
Reference and processing
IETF RFC 2397 Data URL Scheme (data:[<mediatype>][;base64],<data>)
Calculations and file processing run in this browser tab. The tool does not send working inputs or files to our hosting server.
FAQs
Does Base64 encoding make an image smaller?
Base64 normally increases the encoded payload. It is useful for a self-contained string, not as an image-compression step. Large photographs are usually easier to manage as separate files.
Which inputs do I need for Image / SVG to Base64 Data URI & HTML/CSS Embed Generator?
Use Paste SVG Markup (or upload any PNG/JPG/WebP file below). The built-in examples show how those fields fit together.
What should I check before using this result?
Base64 increases encoded payload size and does not provide encryption. Large data URIs can be inconvenient to maintain; review the destination’s supported content and size limits. Keep the original file. Check the saved format, dimensions, page order and content before replacing or sharing a document.
What happens to the information I enter?
Calculations and file processing run in this browser tab. The tool does not send working inputs or files to our hosting server. Tool favourites save only tool IDs in this browser. Sharing sends the tool link, not your working values or files.