Image Tools

Free SVG Optimizer

Q: Will optimizing break my SVG?

The Safe preset only removes data that has zero visual impact — comments, metadata, and unnecessary whitespace. The Balanced preset adds number rounding and attribute cleanup, which are also safe in virtually all cases. The Aggressive preset can remove default attributes and may occasionally change appearance in edge cases.

Q: Does optimizing change the visual appearance?

The Safe and Balanced presets do not change the appearance. Number rounding to 2 decimal places is visually imperceptible for typical viewBox dimensions (0-1000). Only the Aggressive preset with heavy rounding (1 decimal or fewer) can cause visible differences in detailed illustrations.

Q: Which preset should I use?

Use Safe when you need guaranteed pixel-perfect output. Use Balanced (the default) for general web use — it gives 40-60% savings with no visible change. Use Aggressive for icons and simple graphics where maximum compression matters.

Q: Can I keep my IDs and classes for animation?

Yes. The optimizer never shortens IDs or class names — those are left untouched so CSS animations, JavaScript references, and SVG animations keep working. Only the metadata and editor-specific data are removed.

Q: Does optimizing remove accessibility features?

The Safe and Balanced presets keep and elements, which are used by screen readers. Only the Aggressive preset removes them. If your SVGs are decorative, removing them is fine — for meaningful images, keep them.

Q: Is my SVG uploaded to a server?

No. All optimization happens locally in your browser using DOMParser and XMLSerializer. Your SVG never leaves your device.

Shrink SVG files by up to 70% — remove metadata, comments and editor junk without changing how your artwork looks. All in your browser, nothing uploaded.

Instant Optimize 100% Private SVG Code In/Out Live Preview

Input SVG

Drop an SVG file here

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SVG · SVGZ

Optimization preset

Optimizations

Remove comments Remove metadata Remove title/desc Remove empty groups Remove editor attrs Shorten colours Convert xlink → href Collapse whitespace

Round numbers

decimal places (0 = off)

Result

Original

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Optimized

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Saved

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Preview will appear here

Upload or paste an SVG to get started

Your optimized SVG code will appear here…

What Is SVG Optimization?

SVG optimization is the process of removing unnecessary data from an SVG file so it takes up less disk space and loads faster — without changing how the graphic looks. Every SVG created by Illustrator, Inkscape, Sketch, Figma or Adobe XD contains a lot of extra data that browsers don't need.

Typical size savings range from 20% for clean SVGs up to 80% for editor-heavy exports. The more "professional" the tool that created the SVG, the more junk there is to strip.

Where the bloat comes from

Source of bloat	Typical size	Removed by
Editor metadata (Illustrator, Inkscape, Figma)	2–15 KB	Safe preset
XML comments and layer names	1–10 KB	Safe preset
Editor-specific attributes (`sodipodi:`, `inkscape:`)	1–8 KB	Balanced preset
Excessive decimal precision in coordinates	5–30% of file	Balanced preset
Verbosely-written colours (`#ffffff` instead of `#fff`)	2–5% of file	Balanced preset
Redundant whitespace and indentation	3–10% of file	Safe preset
Legacy `xlink:href` namespaces	0.5–2 KB	Balanced preset

The three presets

Preset	What it does	Safe for
Safe	Removes only comments, metadata, and whitespace — zero visual impact	Everything, including legal/compliance files
Balanced	Adds number rounding (2 dp), colour shortening, editor attribute cleanup	All normal use — web, apps, icons, illustrations
Aggressive	Adds 1-decimal rounding and default-attribute removal	Icons and simple graphics where max compression matters

What is NOT touched

Some optimizers are notoriously risky — they shorten IDs (which breaks animation), remove accessibility attributes, or rewrite path data in aggressive ways. This tool is deliberately conservative:

IDs and class names are preserved — so CSS animations, JavaScript references, and SVG SMIL animations keep working.
<title> and <desc> elements are kept in Safe and Balanced modes — these are read by screen readers and are critical for accessibility.
Path data syntax is preserved — no risky command merging that could change visual output.
viewBox is never removed — it's the reference for scaling.
Namespaces for required features are preserved — only unused editor namespaces are stripped.

When to use each preset

Safe — when you need guaranteed pixel-perfect output. Contracts, legal documents, or SVGs you're going to inspect manually.
Balanced — the everyday default. Perfect for websites, apps, blog graphics, product pages and icons.
Aggressive — when file size is the priority and you can accept a small risk of visual differences. Best for simple icons, logos and single-colour graphics.

Why SVG optimization matters

Faster page loads. SVGs are usually inlined into HTML or loaded as separate files — smaller is faster, especially for icons.
Better Core Web Vitals. Google uses page speed as a ranking factor, and image weight is the biggest contributor.
Cleaner version control. Optimized SVGs diff cleanly in Git. Editor-generated SVGs produce huge diffs for tiny changes.
Easier hand-editing. Without thousands of attributes, the SVG is actually readable and edit-friendly.
Lower CDN bills. If you serve SVG icons to millions of users, savings compound.

Common use cases

Website Icons

Shrink icon sets from Figma, Illustrator or Iconfont before shipping.

Mobile Apps

Reduce APK / IPA size by optimizing bundled vector assets.

Logo Cleanup

Turn bloated Illustrator SVG logos into clean, hand-editable files.

Inline SVG

Inline SVGs sit inside your HTML — smaller means faster first paint.

Designer Handoff

Convert Sketch/Figma exports into production-ready SVG code.

E-commerce

Optimize product icon sets and illustration graphics for speed.

Chart Libraries

Shrink exported D3, Chart.js, and Plotly SVG charts.

Print Production

Clean up SVGs before sending to vinyl cutters, lasers and CNC machines.

Privacy and security

This SVG optimizer runs entirely in your browser. Parsing, transformation and serialization all happen locally using the browser's built-in DOMParser and XMLSerializer. Your SVG never leaves your device — nothing is uploaded, stored or transmitted.

Frequently Asked Questions

What does an SVG optimizer do?

An SVG optimizer removes unnecessary data from an SVG file without changing how it looks. It strips comments, metadata, editor namespaces, redundant whitespace, and rounds coordinates to fewer decimal places. Typical savings range from 20% to 70%, depending on how the SVG was originally exported.

Will optimizing break my SVG?

The Safe preset only removes data that has zero visual impact. The Balanced preset adds number rounding and attribute cleanup, which are also safe in virtually all cases. Only the Aggressive preset with heavy rounding can cause visible differences in very detailed illustrations.

Why are my SVGs so large?

SVGs exported from Illustrator, Inkscape, Sketch or Figma contain a lot of editor-specific data — layer names, grid positions, document metadata and comments. These are meaningless to browsers and often make up more than half the file size.

Does optimizing change the visual appearance?

The Safe and Balanced presets do not change appearance. Number rounding to 2 decimal places is visually imperceptible for typical viewBox dimensions (0–1000). Only the Aggressive preset with 1-decimal rounding can cause visible differences in detailed illustrations.

Which preset should I use?

Use Safe when you need guaranteed pixel-perfect output. Use Balanced (the default) for general web use — it gives 40–60% savings with no visible change. Use Aggressive for icons and simple graphics where maximum compression matters.

Can I keep my IDs and classes for animation?

Yes. The optimizer never shortens IDs or class names — those are left untouched so CSS animations, JavaScript references and SVG SMIL animations keep working. Only metadata and editor-specific data are removed.

Does optimizing remove accessibility features?

The Safe and Balanced presets keep <title> and <desc> elements, which are used by screen readers. Only the Aggressive preset removes them. If your SVGs are decorative, removing them is fine — for meaningful images, keep them (Balanced mode).

What is "Round numbers"?

SVG path coordinates often have excessive precision like 10.2837465 when 10.28 would look identical. Rounding cuts file size without visible change. 2 decimal places is a safe default. 0 disables rounding entirely.

Is my SVG uploaded to a server?

No. All optimization happens locally in your browser using DOMParser and XMLSerializer. Your SVG never leaves your device — nothing is uploaded, stored or transmitted.

Is this SVG optimizer free?

Yes. It is 100% free, requires no sign-up, and runs entirely in your browser. No file limits, no watermarks, no premium tier.