Head-to-head · Mutation Testing Tools
ArcMutate vs Infection
ArcMutate leads on 0 checks, Infection on 0, and 5 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreArcMutate · 9.8/10
- Free planboth
ArcMutate scores higher on our rubric for mutation testing tools: 9.8 against 7.4 out of 10; our editors rank them #1 and #4.
ArcMutate is the better fit for java teams needing broad CI mutation testing. Infection is the better fit for PHP teams with CI quality gates.
- ArcMutate fits best
Java teams needing broad CI mutation testing
- Infection fits best
PHP teams with CI quality gates
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Side by side
| Feature | ArcMutate 9.8/10 Visit ↗ | Infection 7.4/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 9.8 | 7.4 |
| Ranking | #1 in Mutation Testing Tools | #4 in Mutation Testing Tools |
| Best for | Java teams needing broad CI mutation testing | PHP teams with CI quality gates |
| Pricing model | Free plan + paid | Free |
| Starting price | Not published | Not published |
| Free plan | ✓ | ✓ |
| Free trial | — | — |
| Deployment | Self-hosted | Self-hosted |
| Support | Email, Community, Docs | Community, Docs |
| Integrations | 10 integrations | 6 integrations |
| Built for | Small business, Mid-market, Enterprise | Solo, Small business, Mid-market, Enterprise |
| Features ArcMutate 4/4 · Infection 4/4 | ||
| Incremental analysis | ✓ | ✓ |
| Parallel execution | ✓ | ✓ |
| Surviving mutant reports | ✓ | ✓ |
| Mutation quality gate | ✓ | ✓ |
| Specs | ||
| Supported languages | Java, Kotlin, Groovy | PHP |
| Test frameworks | JUnit 4, JUnit 5, Spring Test, Mockito, MockK, Robolectric | PHPUnit, PhpSpec, Codeception, Testo |
| Mutation operators | Extended, extreme, chained calls, varargs, one-less-parameter, remove distinct/filter/limit/skip/sorted, predicate operators, field writes, parameter swaps, stream match swaps, reactive return and mapping operators, Groovy boundary and conditional operators, Spring annotation operators | Arithmetic, boolean, cast, conditional boundary, conditional negotiation, equality, function signature, nullify, number, operator, regex, removal, return value, visibility, and unwrap mutators |
| Our review | ||
| Pros |
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| Cons |
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| Our verdict | ArcMutate is mutation testing software from CloudDev for JVM development teams that want to identify weaknesses in automated test suites. It extends PIT mutation testing with support for Java, Kotlin and Groovy, while Android support is… Read the review → |
Infection is an open-source mutation testing framework for PHP teams that want to measure whether their tests detect code changes. It uses AST-based source-code mutation, runs relevant test cases, and reports killed, escaped, errored, and… Read the review → |
Strengths and trade-offs
ArcMutate — where it wins
- Extended and extreme mutation operators with subsumption analysis
- Pull-request workflows with surviving-mutant annotations
- Java, Kotlin and Groovy support across four platforms
Where it doesn't
- Android and Robolectric support is still in beta
- The Base plan does not include Git or CI platform integrations
- Teams outside JVM development will need another tool
Infection — where it wins
- Broad PHP mutators with configurable profiles and custom mutators
- Parallel execution, coverage reuse, and changed-line filtering
- CI thresholds with HTML, text, JSON, GitHub, and GitLab reports
Where it doesn't
- Supports PHP rather than multiple programming languages
- No AI features are included
- Mutation analysis is centered on supported PHP test frameworks
- ArcMutate9.8/10 · Free plan · paid from $8/user/mo
A broad JVM mutation testing suite with CI workflows, quality gates and a free plan.
Visit ArcMutateFull verdict → - Infection7.4/10 · Free plan
A free, open-source PHP mutation testing framework with CI quality gates.
Visit InfectionFull verdict →
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Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026
Last updated · How we research and update



