CompareStack/Penpot vs Spline
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Updated March 2026 · Independent Analysis

PenpotvsSpline

Penpot is free; Spline starts at $9/mo. Spline is rated higher at 4.5/5 vs Penpot's 4.3/5.

P
Penpot

Open-source design and prototyping platform for cross-domain teams

★ 4.3/5Founded 2019500K+ users users
Try Penpot Free →
S
Spline

3D design tool for the web with real-time collaboration

★ 4.5/5Founded 20202M+ users users
Try Spline Free →

⚡ Quick Stats

⭐
Avg Rating
Penpot4.3/5
Spline4.5/5
🏆 Spline wins
💰
Starting Price
PenpotFree
Spline$9/mo
🏆 Penpot wins
🔧
Features
Penpot15
Spline15
🏆 Penpot wins
🎁
Free Plan
PenpotYes ✓
SplineYes ✓

📊 Ratings Breakdown

P

Penpot

4.3/5 avg
G2 Score4.3/5
Capterra Score4.4/5
Overall Avg4.35/5
S

Spline

4.5/5 avg
G2 Score4.5/5
Capterra Score4.6/5
Overall Avg4.55/5

⚡ Quick Verdict

Independent analysis based on features, pricing, and user ratings

Choose Penpot if you need:
  • ✓ UI Design
  • ✓ Prototyping
  • ✓ Components
  • ✓ Design Systems
  • ✓ Real-time Collaboration
Try Penpot Free →
Choose Spline if you need:
  • ✓ 3D Modeling
  • ✓ 3D Animation
  • ✓ Real-time Rendering
  • ✓ Web Embed
  • ✓ Game-like Interactions
Try Spline Free →

🔧 Feature Comparison

Penpot uniquely offers UI Design, Prototyping, Components. Spline uniquely offers 3D Modeling, 3D Animation, Real-time Rendering. Both share 0 features.

Feature
Penpot
Spline
UI Design
✓
✗
Prototyping
✓
✗
Components
✓
✗
Design Systems
✓
✗
Real-time Collaboration
✓
✗
SVG-based
✓
✗
Open Source
✓
✗
Self-Hostable
✓
✗
Flex Layout
✓
✗
Grid Layout
✓
✗
Design Tokens
✓
✗
Interactions
✓
✗
CSS Ready
✓
✗
Developer Handoff
✓
✗
Plugins
✓
✗
3D Modeling
✗
✓
3D Animation
✗
✓
Real-time Rendering
✗
✓
Web Embed
✗
✓
Game-like Interactions
✗
✓
Physics
✗
✓
Materials & Lighting
✗
✓
Collaborative Editing
✗
✓
Component System
✗
✓
API
✗
✓
Export (GLTF, Image)
✗
✓
Keyboard Shortcuts
✗
✓
Version History
✗
✓
Custom Domains
✗
✓
Code Export
✗
✓
Total Features
15
15

💰 Pricing Comparison

Penpot is free; Spline starts at $9/mo.

P

Penpot Plans

Free tier available

Free (Self-hosted)
Free
  • • Unlimited everything
  • • Self-hosted
Free (Cloud)
Free
  • • Unlimited projects
  • • Community support
Premium
Custom
  • • Priority support
  • • SLA
  • • Coming soon
Full Penpot pricing breakdown →
S

Spline Plans

Free tier available

Free
Free
  • • Unlimited projects
  • • Basic export
ProBest Value
$9/mo
  • • Unlimited viewers
  • • Custom domains
Team
$27/user/mo
  • • Shared libraries
  • • Advanced collaboration
Full Spline pricing breakdown →
🔔 Get notified when prices change

❓ Frequently Asked Questions

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