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SVG Icons vs Icon Fonts
Both approaches display icons, but they behave differently in the browser. Compare sharpness, accessibility, size and flexibility to decide between SVG and fonts.
Rendering
SVG scales crisply and avoids font loading flashes. Fonts can show empty boxes if the file fails.
Accessibility
Fonts rely on private characters that screen readers may announce oddly. SVG lets you add titles and hide decorative marks.
When fonts still help
Legacy systems that depend on class-name conventions may keep a font, but new projects usually benefit from SVG.
Performance
A font file must download completely before any icon appears, and one missing glyph still costs the whole file. Inline SVG ships only the icons a page uses, and external SVG files can be cached individually. For small icon sets, SVG is usually lighter.
Styling and animation
SVG paths can be animated, masked and styled individually. Fonts treat every icon as text, so you are limited to color, size and text effects. Line-drawing animations and stroke changes are only practical with SVG.
Migrating from a font
Replace icons one component at a time. Keep a mapping table from the old class names to the new SVG names, swap the markup, and delete the font file only after every reference is gone. Search your CSS for the old class prefix to confirm.
Quick checklist
- You know how many icons you really use
- Decorative icons are hidden from screen readers
- Icon-only buttons have accessible names
- Font files are removed after migration
- Page weight was compared before and after
Common mistakes to avoid
Switching only because SVG sounds modern, without checking how many icons you really use. Another mistake is keeping both the font and the SVG files after migrating, which doubles the weight and confuses maintenance.
Conclusion
For most modern projects SVG wins on sharpness, accessibility and flexibility, while fonts mainly survive in legacy codebases. Compare your real icon count and page weight first, then migrate gradually and remove the old font once nothing depends on it.
Frequently asked questions
Often yes for small sets, because only the icons you use are shipped and nothing waits for a font file.
They can, since screen readers may announce private-use characters. SVG lets you hide decorative icons and label meaningful ones.
You can during migration, but remove the font once every reference has been replaced.
Next steps
Try these ideas with real icons in the icon browser, or review the categories. See the license page for usage terms.