clangd-tidy
A faster alternative to clang-tidy
Decision gist · record as of 2026-08-14
Yes, with conditions. Install if you have a C++ codebase where clang-tidy runtime is a CI bottleneck and you can accept that some clang-tidy features (like `--fix`) and a small set of checks are unavailable. Requires clangd to be pre-installed on your system. No security vulnerabilities are known, maintenance is active, and the permissive license poses no restrictions.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- clangd must be installed and available on the system PATH; Python 3.8 or later required.
- Low install friction: pure Python wheel with only three lightweight runtime dependencies (attrs, cattrs, typing-extensions).
- Actively maintained with recent releases; however, requires clangd to be installed separately on the system.
License · maintenance · safety
permissive license (permissive) — Licensed under permissive terms (MIT), placing no restrictions on use, modification, or distribution in proprietary or open-source projects.
last release 2026-02-09 (186 days) · last repo commit 2026-05-12 · 160 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 158,518 downloads/mo, #10,721 on PyPI
Alternatives
Verify before relying
pip install clangd-tidy
clangd-tidy -p build file.cpp
# or with formatting check:
clangd-tidy -f -p build file.cpp- Whether clangd-tidy's 'over 10x' speed claim is reproducible on typical codebases and hardware.
- Scope and impact of the several checks that clangd silently disables compared to standalone clang-tidy.
- Practical differences in diagnostic output aesthetics and whether they affect CI/CD workflows.
- Whether the optional tqdm dependency is automatically installed or must be added manually for progress bars.
What it is and what it does
clangd-tidy is a Python wrapper around clangd that performs static analysis on C++ code faster than the standalone clang-tidy tool. It acts as a drop-in replacement, accepting similar command-line arguments and integrating with existing build systems and CI pipelines. The speed improvement comes from clangd's architecture: it builds abstract syntax trees only from the files being checked, rather than processing all included headers as clang-tidy does.
The package depends on attrs, cattrs, and typing-extensions for its Python runtime, and requires clangd to be installed separately on the system. It supports features like code formatting checks via clang-format integration, `.clangd` configuration files for advanced diagnostics (such as include checks), line-based filtering of results, and output formatting for GitHub Actions. Some clang-tidy features like the `--fix` option are not supported, and a small number of checks are silently disabled because clangd does not implement them.
Use it for
- Speed up C++ static analysis in CI/CD pipelines where clang-tidy execution time is a bottleneck.
- Check header files individually without requiring them to be in the compilation database.
- Combine static analysis and code formatting checks in a single tool to reduce separate tool invocations.
- Leverage clangd's `.clangd` configuration for advanced diagnostics like unused-include and missing-include checks.
- Integrate with GitHub Actions workflows to report diagnostics with hyperlinked check names in supported terminals.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, with conditions.
Install if you have a C++ codebase where clang-tidy runtime is a CI bottleneck and you can accept that some clang-tidy features (like `--fix`) and a small set of checks are unavailable. Requires clangd to be pre-installed on your system. No security vulnerabilities are known, maintenance is active, and the permissive license poses no restrictions.
Install
clangd-tidy on PyPI
Before you install
Low install friction: pure Python wheel with only three lightweight runtime dependencies (attrs, cattrs, typing-extensions). Actively maintained with recent releases; however, requires clangd to be installed separately on the system.
clangd must be installed and available on the system PATH; Python 3.8 or later required.
License in practice
Licensed under permissive terms (MIT), placing no restrictions on use, modification, or distribution in proprietary or open-source projects.
Quickstart
pip install clangd-tidy
clangd-tidy -p build file.cpp
# or with formatting check:
clangd-tidy -f -p build file.cppVerify before relying
- Whether clangd-tidy's 'over 10x' speed claim is reproducible on typical codebases and hardware.
- Scope and impact of the several checks that clangd silently disables compared to standalone clang-tidy.
- Practical differences in diagnostic output aesthetics and whether they affect CI/CD workflows.
- Whether the optional tqdm dependency is automatically installed or must be added manually for progress bars.
Package facts
| License | permissive license permissive |
| Python support | Supports the current Python release >=3.8 |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | 3 packagesattrscattrstyping-extensions |
| Maintenance | Actively maintained 186 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 158,518 / month, #10,721 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Development Status :: 4 - BetaEnvironment :: ConsoleIntended Audience :: DevelopersLicense :: OSI Approved :: MIT LicenseOperating System :: POSIXProgramming Language :: Python :: 3 :: OnlyTopic :: Software Development :: Quality Assurance |
Evidence: clangd_tidy-1.1.1-py3-none-any.whl
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See also clang-tidy · pyclang · clang · libclang · lit · scan-build · clang-format · cppyy-cling · grep-ast · pylint-exit