SVG Optimizer Tools Compared — SVGO vs SVGOMG vs Scour
SVGO is the standard SVG optimizer. SVGOMG is its browser-based UI. Scour is the Python alternative. We compare all three for file size, quality, and workflow fit.
SVGO — The Standard SVG Optimizer
SVGO (SVG Optimizer) is the npm package that powers most SVG optimization pipelines. Used in webpack, Vite, Next.js image optimization, and Parcel.
- Install: npm install -g svgo
- Run: svgo input.svg
- Result: typically 20–60% smaller SVG, no visual quality loss
- Configurable: .svgorc.json to enable/disable specific optimizations
- Used in: most JavaScript build tools as the default SVG optimizer
SVGOMG and Scour as Alternatives
SVGOMG is a browser UI for SVGO — no npm needed. Scour is a Python-based optimizer and alternative for non-Node environments.
- SVGOMG: jakearchibald.github.io/svgomg — browser-based SVGO
- SVGOMG: drag-and-drop, instant preview of optimized SVG
- Scour: pip install scour — Python-based optimizer
- Scour: similar optimization results to SVGO, Python ecosystem
- Inkscape: File > Clean Up Document — basic optimization, less effective than SVGO
Frequently Asked Questions
What's the best SVG optimizer for a web project?
SVGO in your build pipeline (webpack/Vite plugin). For one-off files, SVGOMG in the browser. Both use the same SVGO engine — same output quality.
How much can SVGO reduce SVG file size?
20–70% depending on how the SVG was created. Illustrator-exported SVGs have large amounts of removable metadata. Hand-coded SVGs see less reduction.
Does SVGO reduce visual quality?
Default SVGO settings preserve visual quality. The 'precision' optimization (reducing coordinate decimal places) can cause minor rounding in very detailed paths — check visually after optimization.
Does imagetosvg.com apply SVGO optimization to output?
imagetosvg.com applies basic path optimization through VTracer. For maximum web-ready compression, run the downloaded SVG through SVGOMG for additional size reduction.
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