Export for Screens vs. Save As SVG: Which Illustrator Path Wins for Icon Sets?

Why the Export Choice Matters

When you hand off a UI icon set to a web developer, the SVG you deliver can make or break the front‑end workflow. Illustrator offers two distinct export routes: File → Export → Export for Screens and File → Save As → SVG. They look similar at first glance, but the generated markup, ID handling, CSS vs. presentation styles, decimal precision, and responsive behaviour diverge in ways that impact file size, maintainability, and browser rendering.

Two Code Paths, Two Philosophies

Illustrator’s Export for Screens is an artboard‑centric, modern tool designed for rapid, batch export of assets. It writes deterministic IDs (e.g., icon_home) when layer names are valid XML identifiers, and it defaults to internal <style> blocks that use class selectors. The decimal precision is set to three places by default, but you can adjust it from 1 to 7.

In contrast, Save As → SVG is a legacy, document‑centric path that outputs verbose, UUID‑like IDs (e.g., path_12345) unless you explicitly tick Object IDs: Layer Names in the SVG Options dialog. It prefers presentation attributes (e.g., fill="#0066ff") unless you choose CSS Properties: Style Elements. The default decimal precision is four places, and width/height attributes are always present unless you manually remove them.

Key Differences at a Glance

	Export for Screens	Save As SVG
ID Strategy	Deterministic layer‑based IDs if names are XML‑friendly	Verbose UUIDs unless Layer Names is selected
Styling	Internal <style> with classes	Presentation attributes by default; Style Elements optional
Decimal Precision	3 (configurable 1–7)	4 (fixed)
Responsive Viewport	Optional width/height; can be removed with Responsive checkbox	Always includes width/height; requires manual removal
Batch Export	Built‑in; supports multiple artboards	Single file per export; no native batch
SVG Profile	SVG 1.1 by default	SVG 1.1 or 1.2 Tiny selectable

Practical Example: A 20‑Icon UI Set

Suppose you have 20 icon layers named icon_home, icon_search, …, icon_settings on a single artboard. Here’s a step‑by‑step workflow that balances clean markup, small file size, and developer friendliness.

1. Prepare Layers: Name each layer with a concise, XML‑friendly string. Avoid spaces, emoji, or non‑ASCII characters; Illustrator will sanitize them.
2. Export for Screens:
   • File → Export → Export for Screens
   • Choose Format: SVG
   • Set CSS Properties to Style Elements
   • Set Decimal to 2 for a 1–2 % visual tolerance at 16–24 px
   • Check Responsive to omit width/height from the root <svg>
   • Export all artboards (or the single artboard containing your icons)
3. Post‑process with SVGO (optional but recommended):

   npx svgo@latest -i icons.svg -o icons.min.svg \
     --config='{"plugins":[{"name":"removeDimensions"},{"name":"cleanupIDs"}]}'
   

   • removeDimensions strips any residual width/height attributes.
   • cleanupIDs renames IDs to short, unique strings while preserving references.
4. Verify:
   • Open icons.min.svg in VS Code. Inspect that the root <svg> lacks width/height and that IDs are clean.
   • Load the file in Chrome/Firefox at 0.5× and 2× scaling to confirm visual fidelity.

Trade‑Offs and Limitations

• Export for Screens cannot generate a single SVG containing multiple <symbol> definitions for an inline sprite. If you need a sprite sheet, you’ll still need to use Save As SVG and wrap the output in <symbol> tags, or use a build‑time tool like svg-sprite.
• Save As SVG offers more fine‑grained control over SVG profiles and the ability to preserve <text> nodes (by choosing Font: SVG), but its default IDs and presentation attributes are less developer‑friendly for large icon sets.
• Both paths outline text by default. If you need editable text in the browser, you must explicitly set Font: SVG in the SVG Options dialog or avoid outlining text before export.
• Gradients and patterns export with objectBoundingBox units. When scaling non‑uniformly, the gradient may shift unless you add vector-effect="non-scaling-stroke" or adjust gradientTransform.
• Illustrator version matters: CC 2019 (23.0) introduced the Responsive checkbox and CSS Properties dropdown. Older builds lack these options.

Actionable Takeaway

For most icon sets, Export for Screens → SVG with Responsive and CSS Properties: Style Elements, followed by a quick SVGO run, yields clean, lightweight, and developer‑ready SVGs. Reserve Save As SVG for legacy workflows, when you need to preserve text nodes, or when you must generate a single file with complex <symbol> sprites.

When you hand off the SVG, include a brief note on the export settings you used—especially the decimal precision and responsive flag—so the front‑end team can replicate the process or adjust the build pipeline accordingly.