@dimforge/rapier2d
Advanced tools
2D physics engine for the JavaScript programming language (official bindings).
Multiple NPM packages exist for Rapier, depending on your needs:
@dimforge/rapier2d or
@dimforge/rapier3d:
The main build of the Rapier physics engine for 2D or 3D physics simulation. This should have wide browser
support while offering great performances. This does not guarantee cross-platform determinism of the physics
simulation (but it is still locally deterministic, on the same machine).@dimforge/rapier2d-simd or
@dimforge/rapier3d-simd:
A build with internal SIMD optimizations enabled. More limited browser support (requires support for simd128).@dimforge/rapier2d-deterministic or
@dimforge/rapier3d-deterministic:
A less optimized build but with a guarantee of a cross-platform deterministic execution of the physics simulation.Some bundlers will struggle with the .wasm file package into the builds above. Alternative -compat versions exist
which embed the .wasm file into the .js sources encoded with base64. This results in a bigger package size, but
much wider bundler support.
Just append -compat to the build you are interested in:
rapier2d-compat,
rapier2d-simd-compat,
rapier2d-deterministic-compat,
rapier3d-compat,
rapier3d-simd-compat,
rapier3d-deterministic-compat.
Each time a new Pull Request is merged to the main branch of the rapier.js repository,
an automatic canary build is triggered. Builds published to npmjs under the canary tag does not come with any
stability guarantee and does not follow semver versioning. But it can be a useful solution to try out the latest
features until a proper release is cut.
0.18.1 (8 August 2025)
FAQs
2-dimensional physics engine in Rust - official JS bindings.
The npm package @dimforge/rapier2d receives a total of 708 weekly downloads. As such, @dimforge/rapier2d popularity was classified as not popular.
We found that @dimforge/rapier2d demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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