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GigAI Tools

SVG Optimizer, Minify & Clean SVG Online with SVGO

Paste or drop an SVG exported from Figma, Illustrator or Sketch and watch it shrink. Real SVGO optimization with tunable precision, a live before/after size meter, and a checkerboard preview so you can confirm nothing broke: all in your browser, never uploaded.

100% browser processingFree · no sign-up

What is the svg optimizer?

The SVG Optimizer runs real SVGO in your browser to clean files exported from Figma, Illustrator or Sketch, stripping editor metadata, rounding coordinates and dropping hidden layers. A before/after size meter shows exact bytes and percent saved, with a checkerboard preview. Free and never uploaded.

The GigAI SVG Optimizer is a desktop-grade cleaner for SVG markup that runs SVGO's full optimization pipeline directly in your browser. Design-tool exports are notoriously bloated: Figma, Illustrator and Sketch bake in editor metadata, invisible layers, redundant groups, absurdly precise coordinates and namespaced junk that can easily triple a file's size. Paste your SVG, drop a.svg file, or import one, and the optimizer strips comments and editor namespaces, collapses redundant transforms and groups, rounds path data to a precision you control, converts styles to attributes and removes hidden elements, then reports the exact bytes before and after, the percentage saved, and an estimated gzipped size so you know what actually ships. A live checkerboard preview renders the optimized result next to the code so you can instantly confirm the visual is identical, which is the one thing raw minifiers never show you. Every knob that matters is exposed without a config file: coordinate precision, whether to keep the viewBox (removing it silently breaks responsive scaling), whether to strip width/height for fluid sizing, multipass, and whether to remove IDs or the title/desc used by assistive tech. When SVGO's chunk can't load, a built-in fallback optimizer keeps the tool working. Because it is 100% client-side, brand assets, unreleased logos and internal icons never leave your machine, close the tab and every trace is gone.

Difficulty:
Easy
Typical time:
~10s
Processing:
100% browser processing

Last updated

How to use the svg optimizer

  1. 1

    Add your SVG

    Paste markup into the editor, drop a .svg file anywhere on the workspace, or click Import. A sample loads in one click if you just want to see it work.

  2. 2

    Tune the options

    Set coordinate precision and choose whether to keep the viewBox, strip width/height, remove IDs, drop title/desc or run multipass. Everything re-optimizes live as you change a knob.

  3. 3

    Check the preview & meter

    Glance at the checkerboard preview to confirm the artwork is unchanged, and read the before/after byte, percentage-saved and gzip-estimate badges.

  4. 4

    Copy or download

    Copy the optimized SVG to your clipboard, download it as a .svg, or share a link that reopens the tool with your source pre-loaded.

What SVG Optimizer includes

  • Real SVGO, in your browser

    Runs SVGO's full preset, collapsing groups, merging paths, converting styles to attributes and dropping editor namespaces, the same engine build tools use, with no upload and no install.

  • Tunable coordinate precision

    Slide path/coordinate precision from lossless to aggressive. Fewer decimals means smaller files. The live preview lets you push until you can just start to see it, then back off one step.

  • Before / after size meter

    See input bytes, output bytes, percentage saved and an estimated gzipped size the moment you paste, so you know the real shipping weight, not just the raw number.

  • Live checkerboard preview

    The optimized SVG renders live on a transparency checkerboard beside the code, so you can confirm the artwork is pixel-identical before you copy, the safety net raw minifiers skip.

  • Safe-by-default toggles

    Keep viewBox on, IDs and title/desc preserved by default so nothing breaks. Opt in to removing dimensions for fluid scaling or stripping IDs when you know nothing references them.

  • 100% client-side

    Parsing and optimization happen on your device. Brand marks, unreleased logos and internal icon sets are never uploaded, stored or logged: a fallback optimizer even keeps it working offline.

Why use our svg optimizer

Ship lighter icons and logos

Design-tool exports routinely shrink 40–70%. Multiply that across an icon set or an inline logo on every page and it is real bytes off your bundle and your Largest Contentful Paint.

See the visual can't break

Unlike command-line SVGO, the live preview shows the optimized result next to the source, so you catch the rare case where an aggressive setting clips a gradient or a clip-path before it ships.

No config, no install, no upload

Get SVGO-quality output without wiring up a build plugin or an svgo.config.js, and without sending confidential brand assets to a third-party server.

Inline-ready output

Optimized markup is clean enough to paste straight into JSX, a Vue template or an HTML file, and small enough to drop into a data-URI without bloating your CSS.

Built for the way you work

From quick one-off fixes to daily workflows, see how people put this tool to use.

  • Frontend developer

    Trim an inline logo

    Optimize the SVG logo you inline in the header of every page, shaving repeated bytes off HTML that ships on every request and nudging LCP in the right direction.

  • UI / Icon designer

    Clean a Figma export

    Strip the metadata, hidden layers and 12-decimal coordinates Figma bakes into an export, and confirm on the checkerboard that the icon still renders exactly as designed.

  • Design systems engineer

    Normalize an icon set

    Run every icon through the same precision and toggle settings so your sprite or React icon library is consistent and as small as possible before it hits the registry.

  • Marketer / Email

    Fit an SVG into a data-URI

    Minify a decorative SVG hard enough to embed it as an inline background-image data-URI without bloating a stylesheet or a marketing email.

Supported formats

Accepts SVG, and produces SVG, all processed locally in your browser.

Input formats
  • SVG
Output formats
  • SVG

Frequently asked questions

Use SVG Optimizer in your code

The same engine runs behind the free API: send files, get signed download links back, and everything is deleted after the retention you choose. 1,000 tasks a month, no card.

Also runs as a task inside a job - chain it with the other engines. See the recipes.

curl -X POST https://api.gigai.tools/v1/jobs \
  -H "Authorization: Bearer $GIGAI_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{ "tasks": {
    "in": { "operation": "import/url", "url": "https://example.com/input.svg" },
    "work": { "operation": "optimize-svg", "input": ["in"] },
    "out": { "operation": "export/url", "input": ["work"] }
  } }'

# then poll until finished and follow the export URL:
curl https://api.gigai.tools/v1/jobs/JOB_ID/wait -H "Authorization: Bearer $GIGAI_API_KEY"

Common problems, solved

Hit a snag? Here are quick fixes for the issues people run into most.

  • My SVG stopped scaling / looks the wrong size after optimizing.

    You almost certainly removed the viewBox. Turn 'Keep viewBox' back on: the viewBox is what lets an SVG scale to its container. If you want fluid sizing, keep the viewBox and instead enable 'Remove width/height'.

  • An icon in a sprite or a CSS reference went blank.

    IDs were probably removed while something still points at them (a <use xlink:href>, a gradient, a clip-path or a CSS selector). Disable 'Remove IDs'. SVGO can't see references that live outside the file.

  • Curves or gradients look slightly off at high compression.

    Precision is too aggressive for this artwork. Raise the precision by a decimal place or two and watch the preview. Smooth gradients and small icons need more decimals than large flat shapes.

  • It says the input doesn't contain an <svg> element.

    The optimizer needs actual SVG markup starting with an <svg> tag. If you pasted a data-URI or a base64 blob, decode it to raw SVG first, or import the .svg file directly.

Get the most out of it

  • Start at precision 2–3 for icons and only lower it if the preview stays crisp: that's where most of the savings live.

  • Keep the viewBox on and enable 'Remove width/height' when you want the SVG to scale fluidly to its container.

  • Leave 'Remove IDs' off for anything used in a sprite, referenced by <use>, or targeted by CSS/JS. SVGO can't see external references.

  • Optimize before converting to a data-URI or a React component so the embedded/inlined markup starts as small as possible.

  • Preserve title/desc on meaningful graphics, screen readers use them, and the byte cost is tiny.

What's new

Recent updates and improvements to the svg optimizer.

  1. Initial release, client-side SVGO optimization with tunable precision, keep-viewBox / remove-dimensions / remove-IDs / remove-title toggles, multipass, live checkerboard preview, before/after byte + gzip meter, copy, download, undo/redo and shareable links.

  2. Added a dependency-free fallback optimizer so the tool keeps working when SVGO's chunk can't load, plus keyboard shortcuts and a curated set of sample SVGs.

  3. Refined the gzip-size estimate and added clearer guidance around viewBox removal and ID stripping to prevent broken sprites.

Your privacy is built in

Your SVG is parsed and optimized entirely in your browser. It is never uploaded to any server. Nothing is stored, logged or transmitted, so you can safely optimize unreleased logos, brand marks and internal icon sets. If SVGO's optimizer can't load, a built-in fallback runs locally too. Close the tab and every trace is gone.

  • Runs in your browser
  • No uploads
  • Nothing stored

Ready to try the svg optimizer?

Free, private and instant. SVG Optimizer runs right in your browser.