Compress and clean SVG files. All processing happens in your browser.
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Upload SVG from design tools (Figma, Illustrator, Sketch) or paste SVG code directly. Optimizer analyzes file for unnecessary data and optimization opportunities.
Choose aggressive (maximum compression, may affect quality), balanced (recommended, safe optimizations), or conservative (minimal changes, preserve all features). Adjust precision for coordinate rounding.
View before/after comparison showing file size reduction. Inspect visual diff to ensure optimization doesn't break appearance. Review removed elements (metadata, comments, hidden layers).
Export cleaned SVG with reduced file size. Typical 30-70% reduction. Use optimized SVG for web icons, logos, illustrations with faster load times and better performance.
Understanding SVG optimization
SVG optimization removes unnecessary data from SVG files without affecting visual appearance. Design tools (Figma, Illustrator, Sketch) export SVGs with metadata, comments, hidden layers, excessive precision, and redundant code. Optimization strips this bloat, reducing file size 30-90% while maintaining quality.
SVG (Scalable Vector Graphics) is XML-based vector format. Unlike raster images (JPG, PNG) that store pixel data, SVGs store mathematical descriptions of shapes. This makes SVGs infinitely scalable without quality loss but also susceptible to inefficient code generation from design tools.
Unoptimized SVGs from design tools contain significant bloat:
Editor Metadata: Figma, Illustrator, Sketch embed editor-specific data (layer names, grid settings, plugin data). Useful for editing but irrelevant for web display. Can constitute 20-50% of file size.
Excessive Precision: Design tools use 6-8 decimal places for coordinates (x="123.456789"). Browser rendering doesn't benefit from precision beyond 2-3 decimals. Rounding coordinates saves bytes.
Redundant Attributes: Default values explicitly declared (fill="black" when black is default). Transform attributes with identity values (transform="translate(0,0)"). Removal reduces code.
Comments and Whitespace: SVG exports include comments for organization and whitespace for readability. Necessary for editing, wastes bytes in production.
Unused IDs and Classes: Design tools generate unique IDs for every element. Only IDs referenced by animations/scripts need preservation. Others removable.
Hidden/Invisible Elements: Layers hidden in design tool but still exported. Elements with opacity="0" or display="none" serve no purpose but inflate file size.
Precision Reduction: Round coordinates and transform values to 2-3 decimals. Path: M10.123456,20.789 becomes M10.12,20.79. Invisible to eye, significant byte savings.
Remove Editor Data: Strip metadata namespaces (xmlns:figma, xmlns:sketch), editor-specific attributes, layer organization data. Preserves visual output, removes editing context.
Minification: Remove whitespace, line breaks, unnecessary quotes, redundant spaces. Compressed SVG harder to read but dramatically smaller.
Path Optimization: Simplify path commands. Convert absolute to relative coordinates where shorter. Merge adjacent commands. Path: L100,100 L100,200 becomes L100,100v100 (vertical line shorthand).
Remove Default Attributes: Strip attributes matching SVG defaults (fill="black", stroke="none", opacity="1"). Browser applies defaults automatically.
Collapse Groups: Merge nested <g> groups with no semantic purpose. Flatten unnecessary structure.
Convert Styles to Attributes: Inline <style> blocks often less efficient than presentation attributes. style="fill:red" becomes fill="red".
Remove Hidden Elements: Delete elements with display="none", opacity="0", or visibility="hidden". Serve no visual purpose.
SVGO (SVG Optimizer) is Node.js-based tool and industry standard for SVG optimization. Extensible plugin architecture with 40+ optimization plugins. Most online optimizers (including SVGOMG) use SVGO engine.
SVGO plugins (selected examples):
Plugins can enable/disable individually for custom optimization profiles.
Aggressiveness vs Safety: Aggressive optimization achieves maximum compression but risks breaking complex SVGs (gradients, filters, masks). Conservative optimization safer but larger files. Balanced approach recommended.
Editability vs File Size: Optimized SVGs harder to edit - removed IDs, merged paths, stripped metadata. Keep original unoptimized file for design changes, use optimized for production.
Precision vs Accuracy: Excessive rounding causes visible artifacts (misaligned paths, gaps). 2-3 decimal precision safe for most icons/logos. Intricate illustrations may need higher precision (4-5 decimals).
Animation Compatibility: Some optimizations break CSS/JS animations. Removing IDs destroys animation targets. Merging paths prevents individual path animation. Preserve IDs and structure for animated SVGs.
Optimization results vary by SVG complexity and export tool:
Simple Icons (Figma/Sketch): 40-70% reduction typical. Icon exported from Figma: 2KB → 800 bytes.
Logos with Gradients: 30-50% reduction. Complex gradients/filters have less removable bloat.
Illustrations (Illustrator): 50-90% reduction. Illustrator exports particularly bloated SVGs with extensive metadata.
Hand-Coded SVG: Minimal reduction (10-20%). Already lean code has little fat to trim.
Editable Master Files: Never optimize source SVGs you'll edit later. Optimization destroys editability. Keep originals unoptimized, optimize copies for production.
Animated SVGs: Animations rely on specific element IDs, structure, attributes. Aggressive optimization breaks animations. Use conservative settings or manual review.
SVG Sprites: Sprite optimization differs from single SVG optimization. Sprite-specific tools handle shared defs, viewBox coordination.
Programmatically Generated SVG: If generating SVG with code already optimized (no editor bloat), further optimization marginal benefit.
Optimize Before Deployment: Include SVG optimization in build pipeline. Never serve unoptimized design tool exports.
Test Visual Output: Always compare before/after visually. Automation catches most issues, but edge cases exist (precision problems, gradient breakage).
Preserve Source Files: Keep original unoptimized SVG for future edits. Optimization is one-way process - can't perfectly reverse.
Use Appropriate Precision: 2-3 decimals for icons/logos, 3-4 for detailed illustrations. Test to find minimum precision without visible artifacts.
Consider Gzip Compression: SVG is text (XML), compresses excellently with gzip. Optimized SVG + gzip = maximum efficiency. 5KB optimized SVG may gzip to 1.5KB.
Inline Small SVGs: SVGs under 1-2KB often better inlined in HTML than external files (saves HTTP request). Optimization makes more SVGs small enough to inline.
How developers use SVG optimization
Optimize icon libraries for web use. Reduce icon file sizes 50-70% without quality loss. Critical for icon fonts or inline SVG icons to minimize page weight.
Reduce logo file size while preserving brand integrity. Optimized logos load faster, especially important for above-the-fold branding. Maintain visual quality with smaller footprint.
Optimize complex illustrations exported from design tools. Remove hidden layers, excessive precision, and metadata. Achieve 60-80% size reduction on detailed graphics.
Integrate SVG optimization into build process. Automatically optimize all SVG assets during build. Ensures production deployment never serves bloated design tool exports.
Master SVG optimization
This SVG optimizer reduces file sizes by removing unnecessary data while preserving visual quality. Upload SVG, configure settings, preview results, and download optimized file.
File Upload: Click upload or drag SVG file. Accepts SVG from Figma, Illustrator, Sketch, Inkscape, any vector editor.
Paste SVG Code: Copy SVG code from editor, paste directly into text area. Useful for quick optimization without file downloads.
Batch Upload: Some optimizers support multiple files simultaneously. Upload entire icon set for batch processing.
Aggressive (Maximum Compression):
Balanced (Recommended):
Conservative (Minimal Changes):
Precision (Decimal Places):
Remove Metadata: Strips editor-specific data (Figma layers, Sketch plugin data). Always enable unless debugging.
Remove Comments: Deletes SVG comments. Enable for production, disable if comments contain important info.
Merge Paths: Combines adjacent paths into single path. Reduces code but may complicate editing.
Remove Hidden Elements: Deletes invisible elements (opacity="0", display="none"). Always enable unless intentionally toggling visibility with scripts.
Preserve IDs: Keep element IDs. Required for animations, CSS targeting. Disable for static icons to save bytes.
File Size Comparison: Before/after sizes show reduction percentage. Typical: 40-70% for design tool exports.
Visual Diff: Side-by-side comparison ensures no visual breakage. Look for:
Code Diff: View removed/changed code. Verify only bloat removed, not essential attributes.
Compression Stats: See breakdown of what was removed (metadata: 2KB, precision: 1.5KB, etc.).
Single File: Download button saves optimized SVG with same filename + "-optimized" suffix.
Copy to Clipboard: Copy optimized code directly to paste into code editor or CMS.
Batch Download: If batch uploaded, download ZIP of all optimized SVGs.
Broken Gradients: Aggressive ID removal or path merging breaks gradient references. Use conservative mode or manually check gradients.
Animation Breakage: Optimizing animated SVGs can remove animation target IDs. Disable ID removal for animated graphics.
Text Rendering: Some optimizations convert text to paths. If text should remain editable, disable text-to-path conversion.
Precision Artifacts: Excessive coordinate rounding creates gaps or misalignments. Increase decimal precision (3-4 decimals).
Missing viewBox: Some optimizers remove viewBox attribute. Ensure "preserve viewBox" enabled for responsive SVGs.
Keep Originals: Always preserve unoptimized source files for future edits. Optimization is lossy for editability.
Test Visually: Compare before/after at actual usage size. Zoom in to catch subtle artifacts.
Optimize Once: Don't repeatedly optimize same SVG. Each pass can degrade quality. Optimize final version once.
Use Appropriate Settings: Icons: aggressive. Logos: balanced. Illustrations: conservative. Animations: minimal optimization.
Inline Small SVGs: Optimized SVGs under 1-2KB often better inlined in HTML/CSS than external files (saves HTTP request).
Gzip Compression: Combine optimization with gzip for maximum efficiency. Optimized SVG compresses better than bloated original.
Everything you need to know
Your data never leaves your browser
Your SVG files never leave your browser. This optimizer operates entirely client-side using JavaScript. There are no server uploads, no backend processing, and no data transmission.
This makes the tool safe for proprietary logos, client assets, confidential illustrations, or sensitive brand files. Use with confidence for commercial projects. Your visual assets remain completely private.
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