Head-to-head · Property-Based Testing Tools
PropEr vs ScalaCheck
PropEr leads on 0 checks, ScalaCheck on 0, and 3 are even. Who comes out ahead on the 3 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scorePropEr · 8.7/10
- Free planboth
- Most featuresPropEr · 2 of 3
PropEr scores higher on our rubric for property-based testing tools: 8.7 against 8.6 out of 10; our editors rank them #7 and #8.
PropEr is the better fit for erlang teams testing stateful systems. ScalaCheck is the better fit for scala teams needing broad integration.
- PropEr fits best
Erlang teams testing stateful systems
- ScalaCheck fits best
Scala teams needing broad integration
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Side by side
| Feature | PropEr 8.7/10 Visit ↗ | ScalaCheck 8.6/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 8.7 | 8.6 |
| Ranking | #7 in Property-Based Testing Tools | #8 in Property-Based Testing Tools |
| Best for | Erlang teams testing stateful systems | Scala teams needing broad integration |
| Pricing model | Free | Free |
| Starting price | Free plan | Free plan |
| Free plan | ✓ | ✓ |
| Free trial | — | — |
| Deployment | Self-hosted | Self-hosted |
| Support | Community | Community, Docs |
| Integrations | 2 integrations | 6 integrations |
| Built for | Solo, Small business, Mid-market, Enterprise | Solo, Small business, Mid-market, Enterprise |
| Features PropEr 2/3 · ScalaCheck 0/3 | ||
| Failing-case shrinking | ✓ (best) | Not checked yet |
| Stateful testing | ✓ (best) | Not checked yet |
| Reproducible failures | Not checked yet | Not checked yet |
| Specs | ||
| Supported languages | Erlang | Scala, Java |
| Test runner support | EUnit, Common Test | Not checked yet |
| Cases per run | Not checked yet | Not checked yet |
| Our review | ||
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| Cons |
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| Our verdict | PropEr is an open-source property-based testing tool for developers writing Erlang programs. Rather than checking only hand-picked examples, teams define properties and input types, then generate inputs to check whether those properties… Read the review → |
ScalaCheck is an open-source property-based testing library for Scala and Java programs. Developers define properties with universally quantified assertions, and the library generates test data, evaluates those properties repeatedly, and… Read the review → |
Strengths and trade-offs
PropEr — where it wins
- Generates inputs from PropEr types and native Erlang types
- Tests stateful systems with generated command sequences
- Attempts to shrink failures and supports targeted testing
Where it doesn't
- Supports Erlang rather than a range of programming languages
- Requires a self-hosted deployment
- Support is community-based
ScalaCheck — where it wins
- Automatic generation, shrinking, and minimization of failing cases
- Stateful command testing and configurable parallel execution
- Integrates with sbt, ScalaTest, specs2, Gradle, Scala.js, and Scala Native
Where it doesn't
- Requires developers to define properties and test data generators
- Its supported language focus is Scala and Java
- Self-hosted distribution puts setup and execution in the development workflow
- PropEr8.7/10 · Free plan
A focused Erlang tool for generated properties, stateful models, and smaller failure cases.
Visit PropErFull verdict → - ScalaCheck8.6/10 · Free plan
A broad Scala testing library with generation, shrinking, stateful tests, and ecosystem integrations.
Visit ScalaCheckFull verdict →
PropEr vs ScalaCheck: questions
Which is better for Property-Based testing tools, PropEr or ScalaCheck?
PropEr scores higher on our rubric for property-based testing tools: 8.7 against 8.6 out of 10; our editors rank them #7 and #8.
How do PropEr and ScalaCheck compare?
All 3 checks we put side by side come out level: neither leads on any.
Do PropEr and ScalaCheck have a free plan?
PropEr: Yes. ScalaCheck: Yes.
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All Property-Based testing tools comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Nov 2026
Last updated · How we research and update