Image Tools
SVG Optimizer — Regex Cleanup with 8 Toggle Options
Optimize SVG code free with 8 toggleable cleanup passes — remove comments, metadata, whitespace & more. See byte savings instantly. Paste and optimize now.
SVG Optimizer on FYN Tools is a free Image Tools utility. Open SVG Optimizer in your browser — no signup required. Paste raw SVG markup, enable or disable eight regex-based cleanup toggles (comments, metadata, namespaces, empty attributes, defaults, empty elements, style minification, whitespace), click Optimize, and copy the reduced SVG — a toast shows the exact byte savings percentage. Related: Image Format Converter.
Privacy & processing: 100% client-side browser processing — SVG cleanup runs through local JavaScript regex replacements on the pasted text; nothing is sent to a server.
TL;DR: Paste raw SVG markup, enable or disable eight regex-based cleanup toggles (comments, metadata, namespaces, empty attributes, defaults, empty elements, style minification, whitespace), click Optimize, and copy the reduced SVG — a toast shows the exact byte savings percentage.
Reviewed by FYN Tools Editorial · Guides ·
Data input / output
| Inputs | Raw SVG markup pasted into the input textarea |
|---|---|
| Outputs | Optimized SVG code in the output panel, plus a toast showing bytes saved and percentage reduction |
| Formats | SVG text in, SVG text out |
| Limits | Regex-based cleanup — it does not parse the SVG DOM tree, so complex or malformed SVG may not optimize perfectly; always verify output visually |
| Processing | Client-side (browser regex string processing) |
How to Use the SVG Optimizer
- Paste your SVG code into the input textarea.
- Review the eight optimization toggles — all are enabled by default.
- Disable any toggle you want to preserve (for example, keep comments or metadata).
- Click Optimize SVG.
- Check the success toast for byte savings percentage and bytes removed.
- Copy the optimized SVG from the output panel or click Download.
What is a SVG Optimizer?
This optimizer applies up to eight independent regex-based cleanup passes to your pasted SVG code. The toggles are: Remove Comments, Remove Metadata (title, desc, metadata elements), Remove Unused Namespaces, Remove Empty Attributes, Remove Default Attributes (fill="black", stroke="none", stroke-width="1"), Remove Empty Elements, Minify Styles (collapse redundant style properties), and Remove Whitespace (collapse inter-tag spaces). Each enabled option runs in sequence on the input string.
After optimization, a success toast reports the exact byte savings — both the percentage and the number of bytes removed compared to the original pasted SVG. You can copy the optimized output or download it as optimized.svg. Because the cleanup is regex-based rather than a full SVG AST parser, unusual or hand-edited SVG may need a visual check after optimization.
Each toggle applies targeted regular-expression replacements: comments are stripped with a <!-- ... --> pattern, metadata blocks are removed by tag name, xmlns declarations with empty values are dropped, redundant default paint attributes are cleaned, self-closing empty elements are removed, inline style strings are compacted, and excess whitespace between tags is collapsed. The result is a smaller SVG string suitable for inline embedding or file serving.
How it works
You set image file upload (png/jpg/webp as supported) + on-screen settings in the live panel. SVG Optimizer then optimize SVG files by removing unused attributes, comments, and metadata. Reduce file size while maintaining quality. Results show as processed image preview + download.
Explore more tools on our site.
Usage scenarios
- Icon set cleanup: Paste icons exported from Figma or Illustrator, run all eight toggles, and download lean SVG files with metadata and comments removed.
- Inline SVG minification: Optimize SVG before pasting it directly into a React component or HTML template to reduce bundle size.
- Selective metadata preservation: Disable Remove Metadata if you need to keep <title> or <desc> elements for accessibility while still stripping comments and whitespace.
Input / Output Examples
Input
Image file upload (PNG/JPG/WebP as supported) + on-screen settings
Output
Processed image preview + download
Input
Open /svg-optimizer and run a second sample
Output
Processed image preview + download (iterate settings if the tool has options)
Frequently Asked Questions
What does SVG optimization do?+
SVG optimization removes redundant code, comments, metadata, and unused attributes from SVG files. This reduces file size, improves load times, and keeps your vector graphics crisp and scalable.
Will optimization affect the visual result?+
When using default settings, optimization preserves the visual appearance of your SVG. You can adjust options to balance size reduction with fidelity.
Why optimize SVGs for the web?+
Smaller SVG files load faster, improve Core Web Vitals, and reduce bandwidth. Optimized SVGs are especially important for icons, logos, and graphics used across a site.
Is my SVG file secure?+
Yes, optimization runs in your browser. Your files are not uploaded to our servers, so your designs stay private.
Key Features
- 8 optimization toggles (comments, metadata, namespaces, attributes, defaults, empty elements, styles, whitespace)
- Regex-based SVG string cleanup
- Byte savings toast with percentage and bytes removed
- Copy optimized SVG to clipboard
- Download as optimized.svg
Benefits
Reduce SVG payload size without a command-line SVGO install.
See exact savings before committing optimized code to your project.
Toggle individual cleanup passes to match your accessibility needs.
When to Use SVG Optimizer
- Shrinking inline SVG icons embedded in HTML before deployment
- Cleaning exported SVG from design tools that include metadata and comments
- Reducing SVG payload size for faster page loads on icon-heavy pages
- Preparing SVG assets for a sprite sheet or icon font pipeline
Advantages
- Eight independent toggles for granular control
- Instant byte savings percentage in a toast notification
- Copy and download optimized output
- No server round-trip — paste and optimize locally
Tips
- Keep Remove Metadata disabled if your SVG needs <title> and <desc> for screen reader accessibility.
- Always open the optimized SVG in a browser tab to confirm it still renders correctly after aggressive cleanup.
- Disable Remove Default Attributes if your SVG relies on explicit fill="black" for rendering in older browsers.
- Compare the byte savings toast against your page weight budget to decide if further manual editing is worth it.
Common Mistakes
Enabling all toggles on SVG with required <title>/<desc> accessibility elements and not noticing they were removed.
Assuming regex cleanup handles every edge case — malformed or highly unusual SVG may break visually.
Optimizing SVG that is already minified and expecting large savings — the toast may show minimal reduction.
Summary
Paste your SVG, toggle the eight cleanup options, click Optimize, and copy or download the reduced code — with exact byte savings shown in the toast so you know what you saved.