Svelte Icon Libraries Compared: Lucide vs Tabler vs Phosphor

Icons seem like a small decision until you realize they’re everywhere in your application — navigation, buttons, status indicators, empty states, form labels, toasts, tables. The icon library you choose shows up on every screen, so it’s worth choosing deliberately.

In the Svelte ecosystem, three icon libraries dominate: Lucide Svelte, Tabler Icons Svelte, and Phosphor Svelte. All three are solid, but they serve slightly different needs. This comparison breaks down the differences that actually matter.

The Quick Overview

	Lucide Svelte	Tabler Icons Svelte	Phosphor Svelte
Icon count	~1,500+	~5,500+	~1,200+ (per weight)
Weights/variants	Single weight (stroke)	Single weight (stroke)	6 weights (thin, light, regular, bold, fill, duotone)
Stroke width	Customizable via prop	Customizable via prop	Fixed per weight variant
Default style	Clean, geometric, rounded	Rounded, friendly, slightly thicker	Balanced, slightly more detailed
Svelte 5 support	Yes	Yes	Yes
Tree-shakeable	Yes	Yes	Yes
Base icon size	24x24	24x24	256x256 (scales down)

Lucide Svelte: The Default Choice

Lucide is a community-maintained fork of Feather Icons that has far outgrown its origins. Where Feather stopped at ~280 icons and went quiet, Lucide has expanded to over 1,500 icons with active, regular releases.

What makes it stand out:

Style consistency. Lucide icons have a remarkably consistent aesthetic — clean strokes, rounded joins, geometric construction. When you use 50 different Lucide icons across your app, they look like they were designed as a family. This consistency is harder to achieve than it sounds, especially at scale, and it’s Lucide’s greatest strength.

The “just right” icon count. 1,500+ icons covers virtually every standard UI pattern — arrows, file types, media controls, social logos, commerce, weather, devices — without the paradox-of-choice bloat that comes with larger sets. You’ll almost always find what you need, and you won’t spend 20 minutes scrolling through near-duplicates.

Developer experience. Every icon is a standalone Svelte component that accepts size, color, strokeWidth, and standard SVG attributes as props. Import what you need, and tree-shaking ensures unused icons don’t inflate your bundle.

<script>
  import { Settings, ChevronDown, AlertCircle } from 'lucide-svelte';
</script>

<Settings size={20} strokeWidth={1.5} />

Where it’s limited: Lucide only offers stroke-style icons. There’s no filled variant, no duotone option, and no weight system. If your design calls for solid filled icons alongside outlined ones, you’ll need to supplement Lucide with another set or use CSS tricks.

Best for: Most projects. If you don’t have strong opinions about icon style and want a reliable, well-maintained set that covers all the bases, Lucide is the safe default.

Tabler Icons Svelte: The Volume Play

Tabler Icons is the largest of the three, with over 5,500 icons and growing. It’s the icon equivalent of “there’s an icon for that.”

What makes it stand out:

Sheer coverage. 5,500+ icons means Tabler has icons for niche categories that other sets skip — specific industry symbols, detailed technology logos, obscure UI patterns, granular weather states. If you’re building a highly specialized application (medical, logistics, fintech), Tabler is more likely to have the exact icon you need without resorting to custom SVGs.

Consistent enough. Despite the volume, Tabler maintains a reasonable level of style consistency. The icons share a rounded, friendly aesthetic with consistent stroke widths. There’s more visual variation than Lucide (inevitable at this scale), but it’s not jarring.

Active development. New icons are added frequently. The community is responsive to requests, and the Svelte wrapper keeps pace with the core icon set.

Where it’s limited: The trade-off for volume is that some icons feel less refined than their Lucide or Phosphor counterparts. When you have 5,500 icons, not every one gets the same level of design attention. You may also find multiple icons for the same concept (three different “settings” variations), which can lead to inconsistency if your team isn’t deliberate about choices.

Like Lucide, Tabler is stroke-only. No filled variants, no weight system.

Best for: Applications with broad icon needs, especially in specialized domains. Also a good choice when you want the confidence of knowing that whatever icon you need tomorrow, the library probably already has it.

Phosphor Svelte: The Designers’ Pick

Phosphor takes a fundamentally different approach from Lucide and Tabler. Instead of one stroke weight, every icon ships in six weights: thin, light, regular, bold, fill, and duotone.

What makes it stand out:

The weight system is a game-changer for design flexibility. Use thin or light icons for subtle UI chrome (breadcrumbs, secondary actions), regular for standard interactive elements, bold for emphasis, fill for active/selected states, and duotone for decorative or illustrative contexts. This isn’t just variety — it’s a systematic approach to icon hierarchy that makes your UI more readable.

Duotone icons are unique. No other major icon library offers true duotone variants where the primary and secondary layers can be colored independently. This opens up design possibilities that simply aren’t available with single-weight stroke icons — think accent-colored icon fills, layered visual depth, and brand-colored illustrated states.

Design quality is exceptional. With a smaller core count (~1,200 icons per weight), Phosphor’s designers lavish more attention on each icon. The proportions, optical balance, and detail level are consistently excellent.

<script>
  import { Gear, CaretDown, Warning } from 'phosphor-svelte';
</script>

<Gear size={20} weight="regular" />
<Gear size={20} weight="fill" />
<Gear size={20} weight="duotone" />

Where it’s limited: The base icon count of ~1,200 is adequate for most applications but noticeably smaller than Lucide and dramatically smaller than Tabler. If you’re in a specialized domain, you’re more likely to hit gaps. The six-weight system also means the full package is larger — though tree-shaking mitigates this because you only import what you use.

Best for: Design-conscious projects where icon weight and style are part of the visual language. Especially strong for products with designers actively involved in icon selection, or any project where filled and outlined variants of the same icon are used to indicate state (e.g., outlined heart = not favorited, filled heart = favorited).

Bundle Size and Tree-Shaking

All three libraries support tree-shaking, which means your final bundle only includes the icons you actually import. This makes the total library size largely irrelevant — what matters is per-icon cost.

Each icon in any of these libraries is a small Svelte component wrapping an SVG. The per-icon overhead is minimal — roughly 500 bytes to 1.5 KB gzipped depending on the icon’s path complexity. In practice, even an icon-heavy application importing 100 icons adds less than 50 KB to the bundle.

The practical implication: don’t choose your icon library based on bundle size. All three are efficient. Choose based on design fit.

Svelte 5 Compatibility

All three libraries work with Svelte 5 as of early 2026. Lucide Svelte and Tabler Icons Svelte have both updated their Svelte component wrappers for Svelte 5 compatibility, and Phosphor Svelte has similarly kept pace.

If you’re migrating a project from Svelte 4 to Svelte 5, icon libraries are typically the smoothest part of the transition — SVG components are simple enough that the framework version change rarely causes issues.

Our Recommendations

For most projects, choose Lucide Svelte. It has the best balance of icon count, style consistency, and ecosystem momentum. It’s the default icon set for shadcn-svelte, which means if you’re using shadcn-svelte, you’re already set up for Lucide.

If you need maximum icon coverage, choose Tabler Icons. The 5,500+ icon count means you’ll almost never need to create custom icons, which is valuable for large applications or specialized industries.

If design flexibility and visual hierarchy matter, choose Phosphor. The six-weight system is genuinely useful for creating polished, intentional icon usage patterns. It’s the best choice when you have a designer who cares about icon weight as a design variable.

Can you mix icon libraries? Technically yes, but visually it’s usually a bad idea. Different icon families have different stroke widths, corner radii, and proportional systems. Mixing them creates a subtly inconsistent visual language. Pick one and commit.

Compare all three side by side in our comparison tool, or explore more options in the icon library directory.