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Category HTML/XML Utilities

Click to Upload or Drag SVG here

.svg files only

Note: Only works if the server allows CORS.

Optimization Settings

Make Responsive (Remove width/height) Force currentColor Minify Code (Remove comments/spaces) Add A11y (role="img")

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About

Embedding SVGs directly into HTML (Inline SVG) is a critical technique for modern frontend performance. Unlike standard <img> tags, inline SVGs eliminate an HTTP request and expose the vector internal structure to the DOM. This allows for direct CSS manipulation (changing fill on hover) and JavaScript interactivity.

However, raw SVG files from design tools (Figma, Illustrator) are often bloated with metadata, fixed dimensions, and unnecessary namespaces. This tool parses your SVG, sanitizes it, and applies algorithmic optimizations to produce production-ready code. It also generates Base64 and URL-encoded versions for use in CSS background-image.

Formulas

When converting to a Data URI for CSS use, the file size often increases due to encoding overhead. The Base64 algorithm maps binary data to ASCII characters.

Size_base64 ≈ 4 ÷ 3 × Size_original

This results in an approximate 33% increase in string length. For inline HTML, we aim to reduce size by stripping non-rendering metadata:

S_optimized = S_raw − (Metadata + Comments + Whitespace)

Reference Data

Method	CSS Control	HTTP Requests	Caching	Animation Support
Inline SVG	Full Control (fill, stroke)	Zero (embedded)	Part of HTML	Full (CSS/JS)
<img src>	None	1 per image	Browser Cache	Internal Only
CSS Background	None	1 (or 0 if Data URI)	CSS Cache	None
<object>	Scriptable	1 per object	Browser Cache	Full

Frequently Asked Questions

Inline SVG allows you to control properties like fill, stroke, and size via CSS. It also prevents the "Flash of Unstyled Content" (FOUC) for icons and removes the need for a separate HTTP request.

It replaces specific color hex codes (like #000000) with the CSS keyword "currentColor". This makes the icon automatically inherit the text color of its parent container, making it theme-aware.

Yes, but only if the server hosting the SVG allows Cross-Origin Resource Sharing (CORS). If blocked, you must download the file first and use the Upload option.

Yes. This tool removes potentially malicious tags like <script> and event handlers (onclick) to prevent XSS attacks when you paste the code into your application.

Use Base64 when you need to embed the SVG inside a CSS file (e.g., a background-image) to avoid a file request, but only for small icons (< 2KB) to avoid bloating the stylesheet parsing time.