Spline is the stronger choice when the deciding factor is design tools workflow fit, while Penpot has the clearer case when pricing shape, deployment control, or rollout risk matters more. For product designers and design teams, the practical decision is not feature count; it is which product better supports creating interfaces, prototypes, and assets that developers can implement accurately without forcing a costly migration six months later.
Quick comparison
| Feature | Spline | Penpot |
|---|---|---|
| Starting price | Free plan | Free plan |
| Free plan | Yes | Yes |
| Open source | No | Yes |
| Self-hostable | No | Yes |
| G2 rating | Not listed | Not listed |
| Best for | teams starting with design tools on a free plan | self-hosted design tools teams |
| Starting price | Free plan available; paid tiers depend on usage and plan limits. | Free plan available; paid tiers depend on usage and plan limits. |
| Free plan | Yes | Yes |
| Open source | No | Yes |
| Self-hostable | No | Yes |
| Deployment model | saas | self-hosted |
| Best for | teams starting with design tools on a free plan | self-hosted design tools teams |
| Primary risk | Free-tier limits can hide the real cost until workflows reach production. | Requires internal ownership for hosting, upgrades, and security. |
Design workflow and precision
Winner: Spline. For design workflow and precision, Spline is the safer default because its profile fits the way product designers and design teams evaluate this decision: workflow fit, rollout cost, ownership model, and time to value. Spline is positioned as 3d design tool for web and app interfaces, while Penpot is positioned as open-source design and prototyping; that difference matters when the comparison moves from a feature checklist into daily operation. If your team is using this category for creating interfaces, prototypes, and assets that developers can implement accurately, test the winner against one production workflow and one admin task before committing. Penpot can still win when its ecosystem, contracts, or migration path reduces change management, but it requires a more deliberate rollout plan.
Collaboration and handoff
Winner: Penpot. For collaboration and handoff, Penpot is the safer default because its profile fits the way product designers and design teams evaluate this decision: workflow fit, rollout cost, ownership model, and time to value. Spline is positioned as 3d design tool for web and app interfaces, while Penpot is positioned as open-source design and prototyping; that difference matters when the comparison moves from a feature checklist into daily operation. If your team is using this category for creating interfaces, prototypes, and assets that developers can implement accurately, test the winner against one production workflow and one admin task before committing. Spline can still win when its ecosystem, contracts, or migration path reduces change management, but it requires a more deliberate rollout plan. Adoption depends on who touches the system every week. A tool that is powerful for admins but slow for contributors creates shadow spreadsheets and skipped updates.
Prototyping and interactivity
Winner: Penpot. For prototyping and interactivity, Penpot is the safer default because its profile fits the way product designers and design teams evaluate this decision: workflow fit, rollout cost, ownership model, and time to value. Spline is positioned as 3d design tool for web and app interfaces, while Penpot is positioned as open-source design and prototyping; that difference matters when the comparison moves from a feature checklist into daily operation. If your team is using this category for creating interfaces, prototypes, and assets that developers can implement accurately, test the winner against one production workflow and one admin task before committing. Spline can still win when its ecosystem, contracts, or migration path reduces change management, but it requires a more deliberate rollout plan. Governance is where hidden costs surface. Compare permission boundaries, audit needs, export options, and SSO expectations against your security review requirements.
Asset and component management
Winner: Spline. For asset and component management, Spline is the safer default because its profile fits the way product designers and design teams evaluate this decision: workflow fit, rollout cost, ownership model, and time to value. Spline is positioned as 3d design tool for web and app interfaces, while Penpot is positioned as open-source design and prototyping; that difference matters when the comparison moves from a feature checklist into daily operation. If your team is using this category for creating interfaces, prototypes, and assets that developers can implement accurately, test the winner against one production workflow and one admin task before committing. Penpot can still win when its ecosystem, contracts, or migration path reduces change management, but it requires a more deliberate rollout plan.
Export and developer integration
Winner: Penpot. For export and developer integration, Penpot is the safer default because its profile fits the way product designers and design teams evaluate this decision: workflow fit, rollout cost, ownership model, and time to value. Spline is positioned as 3d design tool for web and app interfaces, while Penpot is positioned as open-source design and prototyping; that difference matters when the comparison moves from a feature checklist into daily operation. If your team is using this category for creating interfaces, prototypes, and assets that developers can implement accurately, test the winner against one production workflow and one admin task before committing. Spline can still win when its ecosystem, contracts, or migration path reduces change management, but it requires a more deliberate rollout plan.
Pricing for design teams
Winner: Penpot. For pricing for design teams, Penpot is the safer default because its profile fits the way product designers and design teams evaluate this decision: workflow fit, rollout cost, ownership model, and time to value. Spline is positioned as 3d design tool for web and app interfaces, while Penpot is positioned as open-source design and prototyping; that difference matters when the comparison moves from a feature checklist into daily operation. If your team is using this category for creating interfaces, prototypes, and assets that developers can implement accurately, test the winner against one production workflow and one admin task before committing. Spline can still win when its ecosystem, contracts, or migration path reduces change management, but it requires a more deliberate rollout plan. Model cost over twelve months, not from the first plan label. Include seats, usage, storage, integrations, onboarding, and automation rebuild time.
Pricing deep-dive
Spline
- Free plan: available for evaluation or limited production use.
- Entry paid tier: starts from free with feature or usage upgrades on paid tiers.
- Pricing model: freemium; license is proprietary; deployment type is saas.
Penpot
- Free plan: available for evaluation or limited production use.
- Entry paid tier: starts from free with feature or usage upgrades on paid tiers.
- Pricing model: open-source; license is open-source; deployment type is self-hosted.
- Open-source: subscription cost may be replaced by hosting, upgrades, and internal maintenance.
Pricing verdict: Neither product has a clean universal pricing win from catalog data alone. Spline catalog: Free plan: available for evaluation or limited production use. Entry paid tier: starts from free with feature or usage upgrades on paid tiers. Pricing model: freemium; license is proprietary; deployment type is saas. Penpot catalog: Free plan: available for evaluation or limited production use. Entry paid tier: starts from free with feature or usage upgrades on paid tiers. Pricing model: open-source; license is open-source; deployment type is self-hosted. Open-source: subscription cost may be replaced by hosting, upgrades, and internal maintenance. Model cost around the plan that supports your real production workflow.
How to migrate from Spline to Penpot
What real users say
Spline: Spline users praise its fit as 3d design tool for web and app interfaces. Common complaints emerge when teams push it beyond that core use case: plan limits, integration gaps, or admin overhead.
Penpot: Penpot users praise its fit as open-source design and prototyping. Complaints tend to cluster around pricing clarity, onboarding effort, or reporting flexibility at scale.
Sources: Pattern synthesized from catalog data, vendor positioning, and public review themes; verify on G2 or Capterra before quoting directly.
Final verdict
Choose Spline if...
- Choose Spline if your team needs 3d design tool for web and app interfaces and that matches the work done every week.
- Choose Spline if its pricing model, deployment type, and governance profile are easier to approve than adapting Penpot.
- Choose Spline if migration risk is lower because your current workflow, integrations, or team habits already resemble its defaults.
Choose Penpot if...
- Choose Penpot if your team needs open-source design and prototyping and would otherwise customize Spline heavily to fit.
- Choose Penpot if it gives product designers and design teams a clearer path for creating interfaces, prototypes, and assets that developers can implement accurately without adding admin work after launch.
- Choose Penpot if its free plan, entry price, open-source status, or managed service model better fits your procurement constraints.
Consider neither if: Consider neither if you need a fundamentally different design tools model: open-source control when both are managed, or a specialist tool outside this category. Review the broader category page and adjacent comparisons before committing.