Dependencies

The third-party crates Bevy depends on, grouped by purpose. Workspace-managed (their versions live in the root Cargo.toml's [workspace.dependencies]); each Bevy crate declares only those it actually uses.

Rendering

• wgpu — graphics API abstraction. Targets Vulkan, Metal, DX12, GL, WebGPU, WebGL. Bevy's renderer is built on it.
• naga — shader translation. Used by wgpu and exposed via naga_oil.
• naga_oil — Bevy-flavored shader composer with #import support.
• encase — type-safe GPU buffer encoding.
• fixedbitset — used by archetype bookkeeping and the renderer.

Math and geometry

• glam — vectors, matrices, quaternions. Bevy's primary math library.
• libm — pure-Rust math implementations for cross-platform determinism (when the libm feature is on).
• smallvec — inline-allocated small vector.

ECS and reflection

• fixedbitset, hashbrown, indexmap — collections.
• bumpalo — bump allocators.
• thiserror — error type derive macro.
• disqualified — short type-name display.
• serde + ron + serde_json — serialization for scenes and the BRP.

Async and tasks

• async-executor — task pool backend.
• async-channel, async-broadcast — inter-task channels.
• futures-lite — small futures utilities.
• async-fs — async filesystem (asset loading).
• portable-atomic — atomics on platforms without native ones (Wasm without atomics, embedded).

Logging and tracing

• tracing + tracing-subscriber — structured logging.
• tracing-log — bridge from the log crate.
• tracing-tracy — Tracy backend (under trace_tracy).
• tracing-chrome — Chrome JSON backend (under trace_chrome).

Windowing and platform

• winit — cross-platform windowing.
• accesskit — accessibility tree.
• raw-window-handle — handle interop.
• web-time — std::time::Instant shim for Wasm.
• arboard — clipboard.
• gilrs — gamepad input.
• android-activity — Android entry point.

Asset formats

• image — PNG, JPEG, BMP, GIF, TGA, TIFF, WebP, EXR, HDR.
• ktx2 — KTX2 parser.
• basis-universal — Basis Universal compressed textures.
• gltf — glTF 2.0 parsing.
• rodio — audio playback.
• symphonia — audio decoding (WAV, OGG, MP3, FLAC, AAC).
• cosmic-text — text shaping and layout.
• mikktspace — vertex tangent generation.

UI

• taffy — flexbox + grid layout engine.

Physics, collisions, picking

Bevy ships no physics. Recommended community crates:

• avian — modern physics for Bevy.
• bevy_rapier — Rapier integration.

Editor and scripting

Out of tree:

• bevy_inspector_egui — runtime inspector.
• bevy_editor_prototypes — official editor work.

Workspace dependency hygiene

The root Cargo.toml's [workspace.dependencies] table pins versions for everything. Sub-crates use version.workspace = true so versions stay aligned. cargo-deny (configured in deny.toml) checks licenses and advisories on every CI run.

See also

• The root Cargo.toml for the canonical version pinning.
• Configuration for the cargo features that gate which dependencies are pulled in.