Try the free tool below. It runs in your browser, with no sign-up and no download.
What Is the SVG Optimizer?
SVG files are images written as code, and design tools often export them with extra comments, long decimal numbers, hidden layers, and metadata you do not need. That extra weight slows pages down, especially when an SVG is used as an icon or a logo that loads on every page. Our SVG optimizer shrinks the code with SVGO, the standard SVG optimizer, running fully in your browser.
Paste your SVG code, press Optimize, and the tool returns a smaller file with the same picture. It shows the size before and after, plus the percentage saved, and it previews the result so you can confirm the image still looks right.
How to Use It
Paste SVG code into the box, or press the sample button to try a small example. Press Optimize. The tool runs SVGO with several passes, which cleans comments, rounds long numbers, removes hidden data, and converts basic shapes into shorter paths where that is safe.
Check the preview and the size numbers. If the result looks right, copy the optimized code or download it as a .svg file and use it in place of the original.
What Gets Removed?
SVGO removes comments, editor metadata, and default values that change nothing visually. It shortens numbers to a sensible precision, drops empty groups, and merges simple shapes. It keeps the drawing itself: the paths, fills, and sizes that make the picture.
Most optimized SVGs are 20 to 60 percent smaller than the original. Files from design tools, which often carry a lot of editor data, tend to save the most. Hand-written SVGs that are already tidy save less, because there is less waste to remove.
When Should You Optimize?
Optimize icons, logos, and illustrations before you put them on a website. Smaller files load faster, use less mobile data, and help pages feel snappier. Optimize before you store SVGs in a project too, because a tidy file is easier to read and edit later.
Keep a copy of the original if you plan to edit the image again in a design tool. The optimized version is best for publishing, while the original is best for editing.
Frequently Asked Questions
Is my SVG sent to a server? No. SVGO runs in your browser, and your code stays on your device.
Will optimization change how my image looks? For normal images, no. Check the preview, and keep your original if the picture is complex.
Does it really use SVGO? Yes. The tool loads the official SVGO browser build and runs its optimize function on your code.
Can I optimize many files at once? This tool optimizes one SVG at a time. Repeat the steps for each file.
Optimizing Icons for a Whole Site
One icon rarely matters on its own, but a site often loads dozens of them, and their weight adds up. Take a set of twenty icons at five kilobytes each: that is one hundred kilobytes of images before any other content loads. Cutting each icon by forty percent saves forty kilobytes on every page view, which is noticeable on slow mobile connections and on pages that must feel instant. The workflow is simple: export the icons, run each one through the optimizer, check the previews, and replace the originals with the optimized versions in your project. Keep the originals in a separate folder, clearly labelled, so a designer can edit them later without losing quality. Name the optimized files the same as the originals, so no code changes are needed beyond swapping the files. Repeat the process whenever a new icon is added, and the habit keeps the whole icon set lean over time, rather than letting weight creep back with each new design round.
For logos, take extra care with the preview. A logo is a brand asset, and even a tiny visual change matters more than a few hundred bytes saved. If the preview differs at all from the original, keep the original logo and optimize only the icons.
Also in Spanish
This tool is also available in Spanish: Optimizar SVG Gratis – Reduce el Tamaño de tu SVG.