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Meta Experimental

These are Meta projects that are not necessarily used in production but are being developed in the open nevertheless.

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  1. Recoil Recoil Public archive

    Recoil is an experimental state management library for React apps. It provides several capabilities that are difficult to achieve with React alone, while being compatible with the newest features o…

    JavaScript 19.4k 1.2k

  2. libunifex libunifex Public

    Unified Executors

    C++ 1.7k 212

  3. Robyn Robyn Public

    Robyn is an experimental, AI/ML-powered and open sourced Marketing Mix Modeling (MMM) package from Meta Marketing Science. Our mission is to democratise modeling knowledge, inspire the industry thr…

    Jupyter Notebook 1.5k 437

  4. hermit hermit Public

    Hermit launches linux x86_64 programs in a special, hermetically isolated sandbox to control their execution. Hermit translates normal, nondeterministic behavior, into deterministic, repeatable beh…

    Rust 1.4k 54

  5. MIRAI MIRAI Public archive

    Rust mid-level IR Abstract Interpreter

    Rust 1k 81

  6. reverie reverie Public

    An ergonomic and safe syscall interception framework for Linux.

    Rust 840 46

Repositories

Showing 10 of 51 repositories
  • llvm-project Public

    Meta-maintained LLVM fork for facebookexperimental/triton, containing channel-specific LLVM and MLIR fixes required to build and release fbtriton. Generally applicable changes are upstreamed to llvm/llvm-project when possible.

    facebookexperimental/llvm-project's past year of commit activity
    LLVM 0 6 0 27 Updated Oct 31, 2026
  • edencommon Public

    Shared library for Watchman and Eden projects.

    facebookexperimental/edencommon's past year of commit activity
    C++ 13 MIT 20 4 1 Updated Oct 31, 2026
  • rust-shed Public

    Repository containing Rust crates common between other Facebook open source projects (like Mononoke or Eden).

    facebookexperimental/rust-shed's past year of commit activity
    Rust 149 Apache-2.0 48 1 3 Updated Oct 31, 2026
  • moxygen Public

    C++ implementation of Media over QUIC Transport (MoQT) — library, relay, samples, and interop tooling.

    facebookexperimental/moxygen's past year of commit activity
    C++ 122 Apache-2.0 41 19 5 Updated Oct 31, 2026
  • triton Public

    Github mirror of trition-lang/triton repo.

    facebookexperimental/triton's past year of commit activity
    MLIR 205 MIT 87 15 371 Updated Oct 31, 2026
  • hermit Public

    Hermit launches linux x86_64 programs in a special, hermetically isolated sandbox to control their execution. Hermit translates normal, nondeterministic behavior, into deterministic, repeatable behavior. This can be used for various applications, including replay-debugging, reproducible artifacts, chaos mode concurrency testing and bug analysis.

    facebookexperimental/hermit's past year of commit activity
    Rust 1,423 54 18 (1 issue needs help) 15 Updated Oct 31, 2026
  • free-threading-benchmarking Public

    Benchmark results for free-threaded builds of Python

    facebookexperimental/free-threading-benchmarking's past year of commit activity
    28 BSD-3-Clause 5 2 0 Updated Oct 31, 2026
  • ptx-anneal Public

    Torch-free offline PTXAS tuning (CompileIQ) for zero user surface perf wins at scale

    facebookexperimental/ptx-anneal's past year of commit activity
    Python 1 MIT 2 0 2 Updated Oct 30, 2026
  • reverie Public

    An ergonomic and safe syscall interception framework for Linux.

    facebookexperimental/reverie's past year of commit activity
    Rust 840 46 3 6 Updated Oct 30, 2026
  • CUTracer Public

    A dynamic binary instrumentation tool for tracing and analyzing GPU kernel instructions.

    facebookexperimental/CUTracer's past year of commit activity
    Python 84 MIT 10 1 2 Updated Oct 30, 2026
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