wasmer-compiler-cranelift
The Cranelift compiler for the `wasmer` package (to compile WebAssembly module)
Decision gist · record as of 2026-08-14
Yes, if you need to run WebAssembly in Python and are comfortable with dormant maintenance. The package has no known vulnerabilities, low install friction, and permissive licensing. However, verify that Cranelift meets your performance and compatibility needs—the package has not been updated since January 2022, so check whether recent WebAssembly features or security patches matter for your use case.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- This package is a compiler plugin and requires the wasmer package to be installed separately to function.
- Low install friction with a pure wheel distribution.
- Maintenance is dormant—last release was in January 2022 and the last commit was September 2023, over 1680 days ago.
License · maintenance · safety
permissive license (permissive) — Licensed under MIT (permissive), so you can use it freely in commercial or private projects without restriction.
last release 2022-01-07 (1680 days) · last repo commit 2023-09-17 · 2,149 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 521,642 downloads/mo, #6,206 on PyPI
Alternatives
Verify before relying
pip install wasmer_compiler_cranelift
from wasmer_compiler_cranelift import Compiler
from wasmer import engine, Store, Module, Instance
store = Store(engine.JIT(Compiler))
module = Module(store, open('my_program.wasm', 'rb').read())
instance = Instance(module)
print(instance.exports.sum(1, 2))- Whether the package works with Python versions beyond 3.10 (classifiers list 3.7–3.10 but current Python support is unspecified).
- Performance characteristics of Cranelift relative to other available compiler options for typical workloads.
- Whether dormant maintenance status affects compatibility with recent WebAssembly specification changes or security patches.
What it is and what it does
wasmer_compiler_cranelift is a compiler plugin that provides Cranelift as a JIT or native code compiler for WebAssembly execution. It plugs into the engine abstraction to enable loading, compiling, and executing WebAssembly modules. You pass its Compiler class to an engine instance, and it handles the compilation step. The package has no runtime dependencies and is one of multiple compiler options available.
The package is dormant—last updated January 2022, with the last repository commit in September 2023. It remains available and functional for existing users, but receives no active maintenance or updates.
Use it for
- Execute WebAssembly modules within a Python application using Cranelift as the JIT compiler.
- Build Python-based tools that load and run .wasm files without spawning external processes.
- Prototype or test WebAssembly code from Python before deploying to production.
- Integrate lightweight, sandboxed computation into Python services by running pre-compiled wasm modules.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
Yes, if you need to run WebAssembly in Python and are comfortable with dormant maintenance.
The package has no known vulnerabilities, low install friction, and permissive licensing. However, verify that Cranelift meets your performance and compatibility needs—the package has not been updated since January 2022, so check whether recent WebAssembly features or security patches matter for your use case.
Install
wasmer-compiler-cranelift on PyPI
Before you install
Low install friction with a pure wheel distribution. Maintenance is dormant—last release was in January 2022 and the last commit was September 2023, over 1680 days ago. The repository remains active but the package itself is not receiving updates.
This package is a compiler plugin and requires the wasmer package to be installed separately to function.
License in practice
Licensed under MIT (permissive), so you can use it freely in commercial or private projects without restriction.
Quickstart
pip install wasmer_compiler_cranelift
from wasmer_compiler_cranelift import Compiler
from wasmer import engine, Store, Module, Instance
store = Store(engine.JIT(Compiler))
module = Module(store, open('my_program.wasm', 'rb').read())
instance = Instance(module)
print(instance.exports.sum(1, 2))Verify before relying
- Whether the package works with Python versions beyond 3.10 (classifiers list 3.7–3.10 but current Python support is unspecified).
- Performance characteristics of Cranelift relative to other available compiler options for typical workloads.
- Whether dormant maintenance status affects compatibility with recent WebAssembly specification changes or security patches.
Package facts
| License | permissive license permissive |
| Python support | Not specified |
| Install friction | Low. Pure-Python wheel |
| Runtime dependencies | None |
| Maintenance | Dormant 1,680 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 521,642 / month, #6,206 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | License :: OSI Approved :: MIT LicenseOperating System :: OS IndependentProgramming Language :: PythonProgramming Language :: Python :: 3Programming Language :: Python :: 3.10Programming Language :: Python :: 3.7Programming Language :: Python :: 3.8Programming Language :: Python :: 3.9Programming Language :: Python :: Implementation :: CPythonProgramming Language :: RustTopic :: Software DevelopmentTopic :: Software Development :: CompilersTopic :: Software Development :: Interpreters |
Evidence: wasmer_compiler_cranelift-1.1.0-py3-none-any.whl
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See also wasmer · wasmtime · itkwasm · hyperlight-sandbox-backend-wasm · qwasm · fastdiff · quickjs-rs · pyodide-py · Nuitka · jaxlib