Unbiased side-by-side comparison of verified reviews, user ratings, features, and pros/cons to help you decide which software fits your business needs.


In our 2026 comparison of OpenProject and Trello, Trello comes out ahead overall (weighted score 86% vs 76% for OpenProject). OpenProject is rated 4.2/5 from 166 user reviews; Trello is rated 4.4/5 from 62 user reviews. OpenProject has a free plan; Trello has a free plan.
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| At a glance | OpenProject | Trello |
|---|---|---|
| Category | Project Management | Project Management |
| User rating | 4.2/5 (166 reviews) | 4.4/5 (62 reviews) |
| Starting price | Free plan | Free plan |
| Free trial | Not listed | Yes |
| Listed features | 15 | 29 |
| Integrations | 4 | 8 |
| Platforms | Web | Web, Windows, macOS, iOS, Android |
| Ease of use | 4.2/5 | 4.4/5 |
| Customer support | 4.2/5 | 3.8/5 |
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14/35 features
28/35 features
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Compare plans, features, and starting points side-by-side
Free open-source deployment.
Professional support and features.
For individuals or small teams getting started.
For teams that need to collaborate & track work.
For teams to visualize work in multiple views.
Organizations requiring admin controls & security.
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OpenProject is a runner-up with a composite score of 76%.
Pricing: $0/mo (No Free Trial), a less accessible entry point than the leader.
Offers 15 features (fewer than the category leader).
Strong usability with a user rating of 4.2/5 stars.
Ranked #1 for support with a user rating of 4.2/5 stars.
Available on 1 Platform: Web, fewer than the leader.
Dimension scorecard
Trello wins overall with a weighted score of 86% based on user rating, pricing, features, usability, and support.
Trello has the most accessible pricing ($5/mo (Free Trial)).
Trello lists the most features (29 features).
Strong usability with a user rating of 4.4/5 stars.
Decent support with a user rating of 3.8/5 stars.
Widest platform availability (5 Platforms: Web, Windows, macOS, iOS +1 more).

Trello scores higher across 4 of 11 key dimensions with a 10-point lead in our weighted analysis.
Trello scores higher across 4 of 11 key dimensions with a 10-point lead in our weighted analysis. The best choice still depends on your team's workflow, budget and required integrations — use the side-by-side sections above to check the details that matter to you.
OpenProject is rated 4.2/5 from 166 user reviews. Trello is rated 4.4/5 from 62 user reviews. Ratings come from approved user reviews on SoftwareHope.
OpenProject has a free plan. Trello has a free plan. Always confirm current pricing on the vendor's site, as plans change.
OpenProject offers a free plan; Trello offers a free plan and a free trial.
OpenProject supports Web; Trello supports Web, Windows, macOS, iOS and Android.
OpenProject has an ease-of-use rating of 4.2/5, Trello has an ease-of-use rating of 4.4/5. The difference is small, so both are similarly easy to adopt.
Community-voted helpful feedback from verified users
We have been using OpenProject to streamline our daily operations. Robust core functionality handles heavy operational workloads without stability issues. A solid investment that continues to improve our team productivity every month.
We have been using OpenProject to streamline our daily operations. Robust core functionality handles heavy operational workloads without stability issues. Furthermore, a solid investment that continues to improve our team productivity every month.
Implementing OpenProject delivered noticeable efficiency improvements from week one. Seamless integration options allow easy connection with our existing software tools. A solid investment that continues to improve our team productivity every month.
Our experience with OpenProject has been consistently solid across departments. Robust core functionality handles heavy operational workloads without stability issues. Furthermore, delivers exactly what was promised with minimal friction and great overall stability.
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