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SVG Optimizer Online — Free SVG Minifier, Cleaner & Compressor

SVG Optimizer

Optimize, minify, and clean SVG files with configurable SVGO presets.

Free online SVG optimizer powered by SVGO. Paste your SVG or upload a .svg file to optimize, minify, prettify, or analyze it. Choose from 8 optimization presets — Default, Aggressive, Safe, React, Icon, Animation, Accessibility, and Email — or toggle 30+ individual plugins. Convert SVGs to React/JSX components, data URIs for CSS embedding, Base64 strings, or sprite symbols. View detailed analysis including element counts, color palette, accessibility audit, security check, and editor metadata detection. Runs entirely in your browser — no SVG data is ever sent to a server.

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Tags: svg, optimize, minify, compress, clean, svgo, vector, icon, react

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How to SVG Optimizer Online

  1. Paste your SVG markup into the input area on the left, or upload a .svg file using the upload button.

  2. Choose an optimization preset from the dropdown — Default for balanced optimization, Aggressive for maximum compression, Safe for conservative cleanup, React for JSX component preparation, or Icon for icon system preparation.

  3. Click Optimize or press ⌘↵ to run the SVGO optimization pipeline instantly.

  4. Review the stats bar to see file size reduction, element counts, accessibility audit, and security check results.

  5. Use alternative actions: Minify for whitespace-only reduction, Prettify to format the SVG, Analyze for read-only inspection, or convert to React component, data URI, Base64, or sprite symbol.

  6. Fine-tune optimization by expanding Advanced Plugin Controls to toggle 30+ individual SVGO plugins.

  7. Copy the optimized output with ⌘⇧C, download as .svg, or preview the visual result in the built-in SVG renderer.

SVG Optimizer Features

  • SVGO-powered optimization: industry-standard SVG optimization engine used by Figma, VS Code, and ImageOptim.

  • 8 optimization presets: Default, Aggressive, Safe, React, Icon, Animation, Accessibility, and Email — each configured for specific use cases.

  • 30+ individually toggleable SVGO plugins: full control over every optimization step from path compression to metadata removal.

  • SVG to React/JSX conversion: generates a TypeScript React functional component with forwardRef, camelCase attributes, and SVGProps typing.

  • SVG to data URI: URL-encodes SVG for direct embedding in CSS background-image and HTML img src attributes.

  • SVG to Base64: converts to base64-encoded data URI for contexts where URL encoding is not supported.

  • SVG to sprite symbol: wraps SVG content in a <symbol> element with configurable ID for SVG sprite sheet systems.

  • SVG analysis dashboard: element counts, path counts, group counts, viewBox detection, dimension extraction, and editor metadata identification.

  • Accessibility audit: checks for <title>, <desc>, aria-label, and aria-labelledby attributes with actionable warnings.

  • Security analysis: detects and optionally removes <script> elements, event handler attributes, and external resource references.

  • Color palette extraction: identifies all unique colors used in fill and stroke attributes, with currentColor detection.

  • Editor metadata detection: identifies SVGs exported from Figma, Adobe Illustrator, Sketch, and Inkscape.

  • Animation preservation mode: safely optimizes SVGs containing <animate>, <animateTransform>, and <animateMotion> elements without breaking animations.

  • Visual SVG preview: renders optimized SVG in-browser with checkered transparency background and before/after comparison.

  • File size comparison: shows original size, optimized size, bytes saved, and percentage reduction with color-coded badge.

  • Configurable precision: adjust floating-point and transform precision from 0 to 10 decimal places.

  • SVG prettifier: format SVG markup with consistent indentation for readability and editing.

  • Works entirely in your browser — no SVG data is ever sent to any server. Your design assets stay private.

  • Keyboard shortcuts for power users: ⌘⇧O to optimize, ⌘⇧M to minify, ⌘⇧P to prettify, ⌘⇧A to analyze.

Frequently Asked Questions

What is SVG optimization?
SVG optimization is the process of reducing the file size and complexity of SVG (Scalable Vector Graphics) files without changing their visual appearance. This involves removing unnecessary metadata, comments, editor-specific data, empty elements, and redundant attributes. It also compresses path data, converts colors to shorter representations, and merges overlapping elements. Optimized SVGs load faster, render quicker, and use less bandwidth.
Is this SVG optimizer free?
Yes, DevFlow SVG Optimizer is completely free with no usage limits. All optimization runs directly in your browser using the SVGO engine — no account required, no file uploads to any server.
Is my SVG data safe?
All optimization happens entirely in your browser using JavaScript. No SVG data is ever transmitted to a server or stored anywhere outside your browser. Your design assets, icons, and illustrations stay completely private on your machine.
What is SVGO?
SVGO (SVG Optimizer) is the industry-standard open-source tool for optimizing SVG files. It uses a plugin-based architecture where each optimization is a separate, configurable step. SVGO is used internally by Figma, the VS Code SVG extension, ImageOptim, and many other tools. This online optimizer uses SVGO directly in your browser.
How much can SVG files be reduced in size?
Typical SVG files exported from design tools like Figma or Illustrator can be reduced by 40-70% without any visual change. Files with extensive metadata, comments, and editor-specific data see the largest reductions. Simple hand-coded SVGs may see smaller improvements of 10-30%. The Aggressive preset maximizes compression but may alter appearance in rare edge cases.
What is the difference between Default and Aggressive presets?
The Default preset applies safe optimizations that should never change the visual appearance of your SVG: removing metadata, cleaning attributes, compressing paths, and merging styles. The Aggressive preset goes further by converting shapes to paths, inlining and converting styles to attributes, removing dimensions, and reducing floating-point precision to 1 decimal — which may cause minor visual changes in complex SVGs.
Will optimization break my SVG?
The Default and Safe presets are designed to be non-destructive — your SVG should look identical after optimization. However, complex SVGs with CSS animations, JavaScript interactions, or unusual filter chains may be affected by certain plugins. Use the Safe preset for maximum visual fidelity, or toggle individual plugins in the Advanced section. Always compare the before/after preview.
How do I convert an SVG to a React component?
Select the '→ React' action and click Run. The tool optimizes your SVG (using the React preset), then converts SVG attributes to JSX camelCase format (class → className, stroke-width → strokeWidth), removes the xmlns attribute, and wraps the markup in a TypeScript React functional component with forwardRef and SVGProps typing. Enter a custom component name in the options.
What is an SVG data URI?
An SVG data URI is a way to embed SVG content directly in CSS or HTML without a separate file. It uses the format data:image/svg+xml,<url-encoded-svg>. This eliminates an HTTP request but increases the CSS/HTML file size. SVG data URIs are commonly used for small icons under 2KB in CSS background-image properties and HTML img src attributes.
What is an SVG sprite?
An SVG sprite is a single SVG file containing multiple icons wrapped in <symbol> elements with unique IDs. Each icon can be referenced anywhere in the page using <use href='#icon-id'/>. Sprites reduce HTTP requests compared to individual SVG files while keeping icons scalable and styleable with CSS.
How does the accessibility audit work?
The accessibility audit checks whether your SVG has a <title> element (provides an accessible name for screen readers), a <desc> element (provides a longer description), and aria-label or aria-labelledby attributes on the root <svg> element. Missing elements are flagged with warnings. The Accessibility preset preserves these elements during optimization.
Why should I remove editor metadata from SVGs?
Design tools like Figma, Illustrator, and Sketch embed editor-specific metadata in exported SVGs: generator comments, proprietary namespaces, internal IDs, and version data. This metadata adds file size but serves no purpose in production. Removing it can reduce file size by 10-40% for complex illustrations and eliminates unnecessary information exposure.
Can I optimize SVGs with animations?
Yes. Select the Animation preset which disables plugins that could break animations: path data conversion, transform conversion, group collapsing, path merging, and ID cleanup (since animations often reference elements by ID). The Animation preset still removes metadata, comments, and editor data safely.
How does the security check work?
The security check detects three categories of potentially dangerous content in SVGs: <script> elements that can execute JavaScript, event handler attributes (onclick, onload, onmouseover, etc.) that can trigger code execution, and external resource references (URLs in href, xlink:href, or CSS url() that load remote content). By default, scripts and event handlers are removed during optimization.
Can I upload SVG files?
Yes. Click the upload icon in the input panel header to select a .svg file from your computer. The file contents are loaded into the input area for optimization. You can also drag and drop .svg files directly onto the input area.
Does it work offline?
Yes. The SVGO engine is bundled with the page as JavaScript. Once the page has loaded, the SVG Optimizer works without an internet connection.

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