{"data":{"slug":"microsoft-buildxl","name":"BuildXL","tagline":"Microsoft Build Accelerator","github_url":"https://github.com/microsoft/BuildXL","owner":"microsoft","repo":"BuildXL","owner_avatar_url":"https://avatars.githubusercontent.com/u/6154722?v=4","primary_language":"C#","stars":1022,"forks":167,"topics":["cli","coreclr","filesystem","kernel","macos","netstandard","orchestration","sandbox","unix","xcode","xplat"],"archived":false,"github_pushed_at":"2026-09-18T19:54:28+00:00","maintenance_label":"Very active","stars_delta_30d":6,"url":"https://www.graphcanon.com/tools/microsoft-buildxl","markdown_url":"https://www.graphcanon.com/tools/microsoft-buildxl.md","api_url":"https://www.graphcanon.com/api/graphcanon/tools/microsoft-buildxl","graph_url":"https://www.graphcanon.com/api/graphcanon/graph?tool=microsoft-buildxl","description":"Microsoft Build Accelerator","homepage_url":null,"license":"MIT","open_issues":19,"watchers":44,"ai_summary":"A build system written in C# that includes features like CLI support, coreclr integration, filesystem handling, and sandboxing.","readme_excerpt":"# BuildXL (Microsoft Build Accelerator)\n\n<img alt=\"BuildXL Icon\" src=\"Public/Src/Branding/BuildXL.png\" width=15%>\n\n## Introduction\n\nBuildXL (Microsoft Build Accelerator) is a build engine originally developed for large internal teams at Microsoft. Internally at Microsoft, BuildXL runs 150,000+ builds per day on [monorepo](https://en.wikipedia.org/wiki/Monorepo) codebases up to a half-terabyte in size with a half-million process executions per build. It leverages distribution to thousands of data center machines and petabytes of source code, package, and build output caching. Thousands of developers use BuildXL on their desktops for faster builds.\n\nBuildXL accelerates multiple build languages, including:\n\n* [JavaScript](Documentation/Wiki/Frontends/js-onboarding.md)\n* [MSBuild](Documentation/Wiki/Frontends/MSBuild/Main.md)\n* [Ninja (CMake)](Documentation/Wiki/Frontends/Ninja.md)\n* Its own internal scripting language, DScript, an experimental TypeScript based format used as an intermediate language by a small number of teams inside Microsoft\n\nBuildXL has a command-line interface. There are currently no plans to integrate it into Visual Studio. The project is open source in the spirit of transparency of our engineering system. You may find our technology useful if you face similar issues of scale. Note that BuildXL is not intended as a replacement for MSBuild or to indicate any future direction of build languages from Microsoft.\n\nOS compatibility:\n* Windows 10+\n* Ubuntu 22.04, 24.04\n* Azure Linux 3\n\n## Examples\nSee the `Examples/` folder for basic project examples. \n\n## Documentation\nThe BuildXL documentation landing page is [here](Documentation/INDEX.md) and look at [the developer guide](Documentation/Wiki/DeveloperGuide.md) in order to understand how to build and use BuildXL.\n\n## Build Status - Azure DevOps Pipelines","github_created_at":"2018-10-12T22:16:45+00:00","created_at":"2026-07-15T10:53:09.279388+00:00","updated_at":"2026-09-20T04:46:25.609533+00:00","categories":[{"slug":"developer-tools","name":"Developer Tools","url":"https://www.graphcanon.com/categories/developer-tools","markdown_url":"https://www.graphcanon.com/categories/developer-tools.md","api_url":"https://www.graphcanon.com/api/graphcanon/categories/developer-tools"}],"tags":[{"slug":"cli","name":"cli"},{"slug":"coreclr","name":"coreclr"},{"slug":"filesystem","name":"filesystem"},{"slug":"sandbox","name":"sandbox"}],"trust":{"provenance":{"is_fork":false,"github_id":152813045,"owner_type":"Organization","methodology":"github_public_v1","parent_repo":null,"near_duplicate_slugs":[]},"computed_at":"2026-09-20T04:46:23.707Z","maintenance":{"label":"Very active","score":96,"methodology":"github_public_v1","releases_90d":0,"days_since_push":1,"last_release_at":null,"stars_delta_30d":6,"open_issues_delta_30d":0},"security_summary":{"status":"no_lockfile","scanner":null,"low_count":0,"high_count":0,"last_scan_at":"2026-07-15T10:53:10.564Z","medium_count":0,"scan_profile":"none","critical_count":0}},"capability_facts":{"scan":{"source":"repo_scan","observed_at":"2026-09-20T04:46:24.741Z"},"languages":{"value":["c#"],"source":"github.language","observed_at":"2026-09-20T04:46:24.741Z"},"license_spdx":{"value":"MIT","source":"github.license","observed_at":"2026-09-20T04:46:24.741Z"}},"decision_facts":{"hosting":null,"pricing":null,"requirements":null,"constraints":null,"when_to_use":["You are working with C# projects and need fast, reliable build times across different operating systems","Your project requires a sanitized build environment to prevent build discrepancies and bugs caused by system differences"],"when_not_to_use":["If your project is not in C# or dotnet ecosystem, as BuildXL is tightly integrated with dotnet components like coreclr","When strict real-time dependency tracking between different languages and tools is required that goes beyond filesystem boundaries"],"source":"enrich:decision_facts","observed_at":"2026-07-17T09:18:52.737Z"},"constraint_facets":null,"decision_summary":[{"label":"Adopt for","value":"BuildXL accelerates build processes using sandboxing for clean builds, supports coreclr and CLI on multiple OSes."}]}}