How to Lint and Validate SVG — SVGO, SVGLint, and Automation
Lint and validate SVG files with SVGO optimization, SVGLint rule enforcement, and automated SVG quality checks in your build pipeline.
Drop your image here
Supports PNG, JPG, BMP, WEBP up to 5MB
SVGO for SVG Optimization and Cleanup
SVGO (SVG Optimizer) removes unnecessary metadata, comments, and whitespace from SVG files. Run `npx svgo input.svg -o output.svg` to optimize a single file, or `svgo --folder ./icons` for a directory. SVGO's configurable plugins enable/disable specific optimizations — configure in svgo.config.js.
- Install: `npm install -D svgo`
- CLI: `npx svgo input.svg` (optimizes in-place by default)
- Config: svgo.config.js controls which plugins run (removeComments, mergePaths, etc.)
SVGLint for SVG Rule Validation
SVGLint validates SVG files against customizable rules. Define rules like 'all paths must have aria-label', 'SVG must have explicit viewBox', or 'no inline styles' in .svglintrc.js. Run in CI to prevent SVG quality regressions from being merged.
- Install: `npm install -D svglint`
- Config: `.svglintrc.js` with custom rules
- CI: `npx svglint icons/*.svg` returns non-zero exit code on violations
Frequently Asked Questions
Does SVGO break SVG animations when optimizing?
Some SVGO plugins can break animations — specifically `removeHiddenElements` (removes elements with opacity: 0 that animate to visible) and `collapseGroups` (removes groups used as animation targets). Configure SVGO to disable these plugins in your svgo.config.js for animated SVGs: `{ name: 'removeHiddenElements', active: false }`.
How do I add SVGO to a Next.js or Vite build pipeline?
For Next.js: use the `@svgr/webpack` loader (via next-svgr) which runs SVGO automatically on import. For Vite: `vite-svg-loader` or `vite-plugin-svgr` applies SVGO during the build. Configure SVGO options in the plugin config in vite.config.ts for consistent optimization across all SVG imports.
Related guides
Ready to Convert Your Image to SVG?
Free online converter — no sign-up, no watermarks, results in under 3 seconds.
Try It Free — Convert Image to SVG