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Head-to-head · Design System Software

Knapsack vs Particles UI

  • Updated Oct 2026
  • Both researched from official sources
  • 7 checks side by side
Higher score Knapsack #4 in Design System Software 7.7/10 Pricing on request ✓ 0 of 6 features Visit Knapsack
Particles UI #6 in Design System Software 7.5/10 Free plan · 14-day trial Free planFree trial✓ 6 of 6 features Visit Particles UI

Knapsack leads on 0 checks, Particles UI on 1, and 6 are even. Who comes out ahead on the 7 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreKnapsack · 7.7/10
  • Free planonly Particles UI
  • Free trialonly Particles UI
  • Most featuresParticles UI · 6 of 6

Knapsack scores higher on our rubric for design system software: 7.7 against 7.5 out of 10; our editors rank them #4 and #6.

Particles UI offers free plan; Knapsack doesn't.

Knapsack is the better fit for enterprise systems with broad engineering workflows. Particles UI is the better fit for teams needing governed token delivery.

  • Knapsack fits best

    Enterprise systems with broad engineering workflows

  • Particles UI fits best

    Teams needing governed token delivery

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Side by side

Feature Knapsack 7.7/10 Visit ↗ Particles UI 7.5/10 Visit ↗
At a glance
Editor score 7.7 7.5
Ranking #4 in Design System Software #6 in Design System Software
Best for Enterprise systems with broad engineering workflows Teams needing governed token delivery
Pricing model Paid Free plan + paid
Starting price — $19/seat/mo
Free plan — ✓ (best)
Free trial — 14 days
Deployment Cloud, Self-hosted Cloud
Platforms Web Web
Support Email, Docs Email, Docs
Compliance SOC 2, SSO/SAML 2FA
Integrations 20 integrations 5 integrations
Built for Enterprise, Mid-market Solo, Small business, Mid-market, Enterprise
Features Knapsack 0/6 · Particles UI 6/6
Token management Not checked yet ✓ (best)
Component documentation Not checked yet ✓ (best)
Design tool sync Not checked yet ✓ (best)
Code sync Not checked yet ✓ (best)
Governance workflows Not checked yet ✓ (best)
Versioning Not checked yet ✓ (best)
Specs
Hosting Not checked yet Cloud
Our review
Pros
  • Connects Figma, tokens, code, documentation, and Git workflows
  • Renders components across React, Vue, Angular, Twig, and more
  • Supports CI/CD, testing, SSO, and living documentation
  • Syncs design tokens between Figma and codebases
  • Adds reviews, visual diffs, WCAG gates, and immutable releases
  • Exports to Tailwind, CSS, SCSS, DTCG, JSON, TypeScript, and JavaScript
Cons
  • Pricing is contact-sales and plans are billed annually
  • No free plan or free trial
  • Advanced security and SSO start with the Core plan
  • Free plan is limited to one project and the main branch
  • Advanced governance features start on the Team plan at $29 per editor monthly
  • Business features require $79 per editor monthly
Our verdict

Knapsack is a design system platform for enterprise teams coordinating design sources, coded components, tokens, documentation, and development workflows. It supports Figma designs and variables, token management with generated output…

Read the review →

Particles UI is a hosted design-system platform for teams managing design tokens across Figma and codebases. It centralizes tokens and supports branches, review requests, visual diffs, impact analysis, WCAG contrast release gates,…

Read the review →
  1. KnapsackDesign System Software 7.7Pricing on request
  2. Particles UIDesign System Software 7.5Free plan · 14-day trial

Strengths and trade-offs

  • Knapsack — where it wins

    • Connects Figma, tokens, code, documentation, and Git workflows
    • Renders components across React, Vue, Angular, Twig, and more
    • Supports CI/CD, testing, SSO, and living documentation

    Where it doesn't

    • Pricing is contact-sales and plans are billed annually
    • No free plan or free trial
    • Advanced security and SSO start with the Core plan

  • Particles UI — where it wins

    • Syncs design tokens between Figma and codebases
    • Adds reviews, visual diffs, WCAG gates, and immutable releases
    • Exports to Tailwind, CSS, SCSS, DTCG, JSON, TypeScript, and JavaScript

    Where it doesn't

    • Free plan is limited to one project and the main branch
    • Advanced governance features start on the Team plan at $29 per editor monthly
    • Business features require $79 per editor monthly
  • Knapsack7.7/10 · Pricing on request

    A broad design system platform for teams coordinating design, engineering, and documentation.

    Visit KnapsackFull verdict →
  • Particles UI7.5/10 · Free plan · 14-day trial

    A hosted design-system platform for governed token delivery across Figma and code.

    Visit Particles UIFull verdict →

More comparisons

All design system software comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update