semgrep scans source code for bugs, insecure patterns and rule violations, with custom rules, autofixes and editor or CI integration.
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Author: Eilidih Parris
Violations Lib – static analysis report parser
Violations Lib parses static-analysis reports into a shared Java model, with SARIF and Code Climate exports and build tool integrations.
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PyMarkdown – Markdown linter
PyMarkdown is a Python Markdown linter with a structure-aware parser, focused rule plugins, automatic fixes and pre-commit integration.
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ty – fast Python type checker and language server
ty is a Rust-based Python type checker with incremental analysis, configurable diagnostics and language server integration for editors.
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Fourmolu – formatter for Haskell source code
Fourmolu formats Haskell code with configurable layouts, project-specific settings, GHC-aware parsing and automated formatting checks.
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clang-tidy – Clang-based C and C++ linter
clang-tidy detects C and C++ bugs, style problems and modernisation opportunities with configurable checks and automatic fixes.
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HTMLHint – static code analysis tool
HTMLHint is a static code analysis tool. It’s written in JavaScript and TypeScript.
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jinjalint – prototype linter
jinjalint is a prototype linter which checks the indentation and the correctness of Jinja-like/HTML templates.
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Perltidy – Perl code formatter
Perltidy reformats Perl scripts with configurable indentation, whitespace and line breaks, plus HTML output and error diagnostics.
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commitlint – Git commit message linter
commitlint checks Git commit messages against configurable conventions, with shareable rules, Git hooks, CI integration and commit prompts.
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markdownlint – static analysis tool for Node.js
markdownlint is a Node.js Markdown linter with configurable rules, custom checks, CommonMark support and GitHub Flavored Markdown syntax.
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markdownlint – tool to check markdown files and flag style issues
markdownlint is a Ruby command-line linter for checking Markdown style with configurable rules, reusable style files and custom rules.
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hindent – extensible Haskell pretty printer
hindent reformats Haskell source with configurable indentation, line lengths, import sorting and integrations for Emacs and Vim.
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HLint – suggests improvements to Haskell code
HLint suggests Haskell code improvements, detects redundant expressions, supports custom hints, automatic refactoring and HTML reports.
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Ormolu – formatter for Haskell source code
Ormolu formats Haskell source code using GHC’s parser, with minimal diffs, predictable layouts, selective formatting and CI checks.
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stylish-haskell – simple Haskell code prettifier
stylish-haskell is a simple Haskell code prettifier. This tool tries to help where necessary without getting in the way.
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Cecil – content-driven static site generator
Cecil combines Markdown content, images and Twig templates to build static sites with asset optimisation, feeds and taxonomies.
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ClangFormat – automatic source code formatter
ClangFormat applies consistent formatting to C and C++ projects, using configurable styles, editor integration and automated checks.
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tidyall – code formatter and validator
tidyall runs code formatters and validators through one interface, with per-file rules, Git-aware checks, caching and safe backups.
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Super-linter – collection of code analysis tools
Super-linter runs multiple linters and formatters across codebases, with configurable checks, parallel scans and CI feedback.
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