The Best Code Refactoring Tools in 2026
We researched code refactoring tools through official websites, including pricing pages, plan tables, and product documentation. Rankings focus on each product’s core refactoring job, value for money, and verified features such as structural transformations, repository scope, language support, and automation.
Our top picks
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Top ranked
ReSharper#1 of 229.2/10A deep Visual Studio refactoring suite with broad analysis and AI assistance.
Free plan · 30-day trial
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Runner-up
ast-grep#2 of 228.7/10A free, open-source choice for structural searches, codemods, and custom linting.
Open source
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Top-ranked free plan
CodeRush#3 of 228.5/10A broad Visual Studio refactoring toolkit with a free plan and Windows-only coverage.
Free plan
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
The full ranking 22 tools, best first
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Best forWindows teams using Visual Studio
A deep Visual Studio refactoring suite with broad analysis and AI assistance.
- AI assistance
- Batch refactoring
Free plan · 30-day trial Our ReSharper verdict → Visit ReSharperFor vendors Sponsor this spot · #1 · $149/mo →9.2/10★★★★★Visit ReSharper -
Best forDevelopers needing free structural refactoring
A free, open-source choice for structural searches, codemods, and custom linting.
8.7/10★★★★☆Visit ast-grep -
Best forC# and Visual Basic developers
A broad Visual Studio refactoring toolkit with a free plan and Windows-only coverage.
- AI assistance
- Batch refactoring
8.5/10★★★★☆Visit CodeRush -
Best forEnterprise-scale, multi-language reengineering
A deep, multi-language toolkit for enterprise reengineering and custom transformation work.
- AST-based analysis
- Batch refactoring
8.3/10★★★★☆Visit site -
Best forJavaScript and TypeScript codemods
A focused, free toolkit for batch refactoring JavaScript and TypeScript code.
- AST-based analysis
- Batch refactoring
8.3/10★★★★☆Visit jscodeshift -
Best forJava AST and source-transformation developers
A programmable Java toolkit for AST analysis, refactoring, instrumentation, and source transformation.
- AST-based analysis
- Batch refactoring
8.1/10★★★★☆Visit Spoon -
Best forC developers performing batch transformations
A focused, free tool for batch refactoring and bug fixing across C repositories.
- Batch refactoring
7.9/10★★★★☆Visit Coccinelle -
Best forJava ecosystem migrations and security fixes
A focused open-source toolkit for Java ecosystem migrations and security fixes.
- AST-based analysis
- Batch refactoring
7.9/10★★★★☆Visit OpenRewrite -
Best forFree C# diagnostics and batch refactoring
A focused open-source toolkit for C# and Visual Basic analysis, refactoring, and batch fixes.
- AST-based analysis
- Batch refactoring
7.7/10★★★★☆Visit Roslynator -
Best forScala teams enforcing refactoring in CI
A free, CI-ready Scala refactoring tool with syntactic and semantic rules.
- AST-based analysis
- Batch refactoring
7.6/10★★★★☆Visit Scalafix -
Best forFree polyglot feature-flag cleanup
A free, polyglot refactoring engine for systematic feature-flag cleanup.
- AST-based analysis
- Batch refactoring
7.5/10★★★★☆View PolyglotPiranha -
Best forJava teams using Eclipse or Maven
A focused, open-source Java refactoring tool for Eclipse projects and Maven CI workflows.
- Batch refactoring
7.4/10★★★★☆Visit jSparrow -
Best forLarge organizations automating migrations
A powerful migration platform for large organizations with a $2,000/month entry point.
- AI assistance
- Batch refactoring
7.3/10★★★★☆Visit Moderne -
Best forScriptable structural code transformations
A free, scriptable tool for template-based structural code transformations.
7.2/10★★★★☆Visit Comby -
Best forC++ teams needing deterministic refactoring
A reviewable, declarative choice for teams automating large-scale C++ changes.
- Batch refactoring
7.0/10★★★★☆Visit BrontoSource -
Best forResearchers optimizing Java code quality
A research-focused Java toolkit with automated refactoring, quality analysis, and AI methods.
- AI assistance
- Batch refactoring
6.9/10★★★☆☆Visit CodART -
Best forTeams experimenting with AI Java refactoring
An open-source desktop tool for teams experimenting with AI Java refactoring.
- AI assistance
- Batch refactoring
6.8/10★★★☆☆Visit Refrax -
Best forPrivate-cloud modernization of large repositories
A private-cloud modernization platform for controlled, auditable legacy-code change.
- AI assistance
6.7/10★★★☆☆Visit Kodebaze -
Best forTeams combining code review and security analysis
A code review and security platform with refactoring-adjacent AI fixes.
6.5/10★★★☆☆Visit Sourcery -
Best forApplication modernization assessment teams
A broad modernization workbench for assessing migration risk, dependencies, and replatforming paths.
6.0/10★★★☆☆Visit Konveyor -
Best forMinecraft seed researchers, not refactoring teams
A focused Minecraft seed research tool, not a code-refactoring utility.
0.0/10☆☆☆☆☆Visit RepeaterFinder -
Best forProperty managers, not refactoring teams
A capable rental operations tool, but not a code refactoring product.
0.0/10☆☆☆☆☆Visit OpenProperty
No tools match those filters.
Compare at a glance
| # | Tool | Free plan | Paid from | Supported languages | Refactoring scope | Batch refactoring | Score |
|---|---|---|---|---|---|---|---|
| 1 | ReSharper | Yes | C#, Visual Basic, C++, HTML, ASP.NET, JavaScript, TypeScript, CSS, XML, XAML, MSBuild, NAnt, JSON, Protobuf | Yes | 9.2 | ||
| 2 | ast-grep | Free | 8.7 | ||||
| 3 | CodeRush | Yes | $249.99/user/yr | C#, Visual Basic, XAML, Blazor, JavaScript, TypeScript, HTML, Razor | Project | Yes | 8.5 |
| 4 | DMS Software Reengineering Toolkit | No | C, C++, C#, Java, Fortran, Pascal, Ada, COBOL, Natural, JCL, JavaScript, PHP, VB.NET, VBScript, VB6, Python, HTML, XML, SQL, PL/SQL, MATLAB M, Simulink, Verilog, VHDL, SystemC, and other extensible language domains | Repository | Yes | 8.3 | |
| 5 | jscodeshift | Yes | Free | JavaScript, TypeScript, Flow | Project | Yes | 8.3 |
| 6 | Spoon | Yes | Free | Java | Repository | Yes | 8.1 |
| 7 | Coccinelle | Yes | Free | C, C++ | Repository | Yes | 7.9 |
| 8 | OpenRewrite | Free | Java, Kotlin, Groovy | Repository | Yes | 7.9 | |
| 9 | Roslynator | Free | C#, Visual Basic | Project | Yes | 7.7 | |
| 10 | Scalafix | Yes | Free | Scala 2.12, Scala 2.13, Scala 3 | Project | Yes | 7.6 |
| 11 | PolyglotPiranha | Yes | Free | Java, Swift, Python, Kotlin, Go, TypeScript, TSX | Project | Yes | 7.5 |
| 12 | jSparrow | Yes | Free | Java | Project | Yes | 7.4 |
| 13 | Moderne | Java, Kotlin, Groovy, Python, C#, .NET, JavaScript, TypeScript, Go, Ruby, COBOL, Scala | Repository | Yes | 7.3 | ||
| 14 | Comby | Free | 7.2 | ||||
| 15 | BrontoSource | C++ | Repository | Yes | 7.0 | ||
| 16 | CodART | Free | Java | Project | Yes | 6.9 | |
| 17 | Refrax | Yes | Free | Java | Yes | 6.8 | |
| 18 | Kodebaze | Any language | Repository | 6.7 | |||
| 19 | Sourcery | Yes | $12/seat/mo | 6.5 | |||
| 20 | Konveyor | Free | 6.0 | ||||
| 21 | RepeaterFinder | Free | 0.0 | ||||
| 22 | OpenProperty | Free | 0.0 |
Head-to-head All 28 comparisons →
- ReSharper vs ast-grep
- ReSharper vs CodeRush
- ReSharper vs DMS Software Reengineering Toolkit
- ReSharper vs jscodeshift
- ReSharper vs Spoon
- ReSharper vs Coccinelle
- ReSharper vs OpenRewrite
- ast-grep vs CodeRush
- ast-grep vs DMS Software Reengineering Toolkit
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How we rank code refactoring tools
Every tool on this page was researched by iTechGuides Editors from its official website — pricing pages, plan tables and product documentation. We rank on how well each one does this category's core job, what the free or entry plan includes, and where it falls short. Where we have enough verified facts, the score out of 10 is a rubric — job fit, value and how much we could verify — shown with its breakdown on every tool's page; a tool we have not verified enough to score yet shows its rank without a number. Scores are re-checked when a product changes its plans. Read the full editorial policy, or submit a tool we missed.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update