CompareStack/Spline vs Penpot
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Updated March 2026 · Independent Analysis

SplinevsPenpot

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

S
Spline

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

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

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

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

⚡ Quick Stats

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

📊 Ratings Breakdown

S

Spline

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

Penpot

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

⚡ Quick Verdict

Independent analysis based on features, pricing, and user ratings

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

🔧 Feature Comparison

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

Feature
Spline
Penpot
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
✓
✗
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
✗
✓
Total Features
15
15

💰 Pricing Comparison

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

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 →
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 →
🔔 Get notified when prices change

❓ Frequently Asked Questions

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