Dextool Mutate

Linux · Self-hosted

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Freedom report

One barScore 5.4

Free tierNo free tier on record
Open codeNo open-source code on record
Runs widely1 of 6 device platforms
DocumentedPlans, terms and facts published

Dextool Mutate is ranked #9 of 25 in mutation testing tools on Freedom251. It runs on Linux, Self-hosted.

Compared on mutation testing tools

Free plan: Yes
Supported languages: C, C++
Test frameworks: GoogleTest, CTest, Makefile
Incremental analysis: Yes
Parallel execution: Yes
Surviving mutant reports: Yes
Mutation operators: Relational Operator Replacement (ROR), Arithmetic Operator Replacement (AOR), Arithmetic Operator Replacement Simple (AORS), Logical Connector Replacement (LCR), Logical Connector Replacement Bit-wise (LCRB), Unary Operator Insertion (UOI), Decision/Condition Requirement (DCR), Statement Deletion (SDL), Constant Replacement (CR)

Best Dextool Mutate alternatives

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Two bars ArcMutate Free tier No. 1$8/mo6.6 One bar Mutant Free tier No. 2$20.83/mo6.5 Two bars Mutatest Free tier No. 3Free6.5 One bar Stryker Mutator Free tier No. 4Free6.3 One bar Infection Paid plans No. 5—5.6 One bar muttest Paid plans No. 6—5.6

The record

Purpose: Dextool Mutate is a C/C++ mutation testing tool that evaluates whether tests detect artificially injected faults.
Reports: It can produce console, compiler warning, JSON and HTML reports.
Test analysis: It identifies useless, redundant and near test cases to help improve a test suite.
Incremental runs: It saves run state in SQLite, allowing interrupted test phases to resume and previous results to be reused as code changes.
Pull request workflows: Change-based testing can focus analysis and tests on changed lines, with HTML or JSON reports for the diff.
CI integration: The documentation describes Jenkins usage and says the approach should work with any CI server setup.
Embedded systems: Users can write a custom analyzer to interpret test output, including results from embedded test setups.
Project integration: The tool integrates without requiring modifications to a project's build system.
Platform and dependencies: The project documents Ubuntu installation and lists LLVM/Clang, CMake, SQLite and a D compiler among its build and run dependencies.
License: The repository's LICENSE file identifies the source code license as Mozilla Public License, version 2.0.
Support and maintenance: The product page directs users to a Discord community, and says the project is maintained by Joakim Brännström.
Incremental testing: It saves run state in a SQLite database and can resume interrupted work and reuse results across runs.
Pull request workflow: It supports change based testing that runs mutants on changed lines and can produce HTML or JSON reports for a diff.
Embedded testing: For embedded systems, users can write a custom analyzer for test output, including signals for unstable tests.

Where it ranks on Freedom251

Best Mutation Testing Tools in 2026#9 of 25

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Sources

joakim-brannstrom.github.io/dextool/plugin/mutate/· checked 4 Oct 2026
joakim-brannstrom.github.io/dextool/plugin/mutate/README_ci.html· checked 4 Oct 2026
joakim-brannstrom.github.io/dextool/plugin/mutate/README_embedded.h· checked 4 Oct 2026
github.com/joakim-brannstrom/dextool· checked 4 Oct 2026
github.com/joakim-brannstrom/dextool/blob/master/L· checked 4 Oct 2026
github.com/joakim-brannstrom/dextool/blob/master/R· checked 4 Oct 2026