Coccinelle vs ReSharper
Coccinelle
coccinelle.gitlabpages.inria.fr
ReSharper
jetbrains.comSide by side
| Figure | Coccinelle | ReSharper |
|---|---|---|
| Price from | Free | $32.42/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Windows | — | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| Plans published | 1 | 2 |
| Spec score · Code Refactoring Tools | 7.9 (#9) | 8.1 (#7) |
| Purpose | Coccinelle is a program matching and transformation engine that uses SmPL to specify desired matches and transformations in C code. | ReSharper provides coding assistance and code quality tools for .NET development. |
| Security | The official pages opened for this research do not state security certifications, compliance claims, or a security program. | JetBrains says it encrypts data in transit using TLS and at rest using algorithms such as AES-256 where technically feasible. |
| Support | Questions can be sent to the [email protected] mailing list, which is moderated for non-members; contributions are preferred via the list and may also be submitted on GitHub. | JetBrains directs users to the ReSharper Knowledge Base and community forum for questions and technical difficulties. |
Plans
In their own words
Coccinelle
Coccinelle is a free program matching and transformation engine for working with C code. It uses SmPL to describe code patterns and the transformations to apply when matches are found. A single semantic patch can change code at many sites across hundreds of files while allowing for differences in spacing, variable names, irrelevant code, and coding style. The project describes uses including automating collateral changes after library API evolution and finding and fixing bugs in systems code. Coccinelle semantic patches and bug fixes have been integrated into the official Linux tree, and semantic patches are available in the Linux scripts directory for use with coccicheck. It supports C and C++, with C++ mode invoked using --c++; the project says its C++ support is still being extended, including for high performance computing. The download page lists version 1.3.3, dated September 2, 2026, with source code and precompiled spatch builds. It is available for Linux and macOS as desktop software. Source builds require OCaml, with Python and Menhir needed in specified cases.
ReSharper
ReSharper provides coding assistance and code quality tools for.NET development. It analyzes C#, VB.NET, XAML, ASP.NET, HTML, and XML as code is written. Editing features include extended IntelliSense, transformations, namespace imports, code rearrangement, and documentation display. Developers can generate properties, overloads, implementations, and comparers, then apply refactorings across a solution or to smaller sections. Navigation helps move among files, types, and members, and follow symbols to usages, base or derived symbols, and implementations. Other tools include a unit test runner, code templates, debugging assistance, project dependency viewing, and internationalization assistance. The VS Code edition also works with Cursor, Antigravity IDE, Devin Desktop, Kiro IDE, and compatible editors. It runs on Windows, macOS, and Linux on x64 and ARM64, including Apple silicon on macOS, and requires a.NET SDK version 6.0 or later on PATH. A 30-day trial starts after installation. Afterward, use requires a commercial license or a free non-commercial license. The commercial plan costs $389 a year per user.