SVG to Base64 Encoder

Convert SVG vector images to Base64 encoding, supports batch processing, and can be embedded directly in HTML and CSS.

Browser execution mode: Your data is processed in your browser and is not uploaded to the server.

Speed and Stability: Processing speed depends on your device and browser. For large batch work, the desktop version may be more stable.

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If the online tool fails to load or run, try the desktop tool.https://tools.yikeaigc.com/

Tool Usage

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Set parameters first, then import SVG. Convert and download in step 3. Batch files show only the first 20 previews; processing covers the full queue.

1Output settings

Confirm output code type and file naming before importing.

Output format

Long text wrapping

ZIP file name

img tag alt text

CSS selector

Preview size

Auto-add xmlns if missing
Improves compatibility when SVG loads as an image resource. Remove XML declaration
Reduces output size and avoids some template parsing issues. Basic SVG text compression
Remove comments and whitespace between tags without changing graphics. Show result preview
Preview as an image after conversion to avoid executing SVG content.

Set the output format before processing files.

2Import Content

Select an SVG file or paste a single SVG source. Files are not uploaded.

Click to select SVG files, or drag files here Supports single or batch .svg files. Only the first 20 are shown for review.

SVG Source

3Import Preview

Import SVG content first.

4Convert & Download

After processing, copy results, download individual files, or package batch results as a ZIP.

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Success0

Failed0

Result Size0 KB

Complete the first two steps, then click Start Conversion.

5Result Preview & Item Actions

Results will appear here after conversion.

Instructions

Software Usage Instructions

Set conversion parameters: First select the output format. You can generate a Data URI, plain Base64 string, HTML img tag, CSS background property, or CSS mask icon code.
Configure processing options:
- Line wrapping for long text: Choose no wrapping, or wrap at 76, 120, or 160 characters.
- Automatically add xmlns: Automatically adds the xmlns attribute when the SVG root node is missing it, making it easier to display as an image resource.
- Remove XML declaration: Removes the XML declaration at the beginning of the SVG to reduce template parsing issues.
- Basic compression: Removes comments and whitespace between tags to shorten the output.
Import SVG content: You can select one or more SVG files, or switch to paste source mode and enter SVG code directly. For batch files, only the first 20 are shown for review; the remaining files will be processed together.
Use sample data: Click “Load sample SVG” or “Insert sample source” to quickly preview the conversion result.
Start conversion: After entering the “Convert & Download” step, click “Start Conversion” and the tool will generate the corresponding Base64 or embed code.
Copy and download: After conversion is complete, you can copy individual results, download individual text files, copy all results, download a combined TXT file, or download batch results as a ZIP package.
Save settings: Frequently used output formats, ZIP file name, alt text, CSS selector, and processing options can be saved and reused the next time you open the tool.

FAQ

A: It converts SVG icons or vector graphics into text form for embedding in HTML, CSS, configuration files, or single-file pages, reducing references to separate resources.

A: A Data URI includes the data:image/svg+xml;base64, prefix and can be used directly as an image URL; plain Base64 contains only the encoded body and is suitable for scenarios where the program adds the prefix itself.

A: It can be used in HTML img tags, CSS background-image properties, CSS mask icons, style configurations, component examples, or documentation code snippets.

A: Some SVGs may display incorrectly when loaded as Data URI images if they are missing xmlns. Adding xmlns="http://www.w3.org/2000/svg" helps improve compatibility.

A: No. Base64 only changes how the data is represented; it does not alter the SVG vector content, so it still retains its vector properties when scaled.

A: The result files will use the original SVG base filename and generate txt, css, or html files based on the output format. If duplicate names occur, numbers will be appended automatically to distinguish them.

A: Common causes include incomplete SVG code, external resource references, non-standard tags, or style dependencies. We recommend first re-exporting a standard SVG in your design software, then converting it.