Runtime Sizes

Last updated: January 2026

Web (JS)

The majority of the size is the WASM library, which the table below represents.

Using: brotli -9 for compression.

Runtime	Uncompressed	Compressed
canvas-lite	707KB	222KB
canvas	1728KB	567KB
webgl2	2179KB	648KB

React

See Web (JS) for more details.

React Native

See Android and Apple for more details.

Apple

The following table shows the download and install size impact of adding RiveRuntime to your project, calculated by comparing the App Thinning report for an empty iOS app with and without RiveRuntime.

Platform	Download Size Impact	Install Size Impact
Universal	~1.67MB	~4.66mb

Android

Target	Download Size	Install Size
ARM-v8a	2.40MB	7.03MB
ARM-v7a	2.32MB	6.00MB

Components

Rive Android’s binary size is comprised of a number of components:

• Kotlin code compiled to a DEX file
• Rive Android native shared library (librive-android.so)
  • Comprised of the Rive Android C++ bindings, the Rive C++ runtime, and the Rive Renderer.
  • Additionally has the below third party static dependencies (currently without Luau)
• C++ standard library (shared .so file - 394KB download size, 1.2MB install size for ARM-v8a)
• The following Android dependencies:

  Dependency	Reason
  Compose: runtime, ui, ui-android	Compose support
  Lifecycle: runtime-ktx and runtime-compose	Lifecycle awareness in Compose
  Startup: startup-runtime	Automatic initialization
  ReLinker	Rive native library loading
  Volley	Network loading

Amortization and R8

The sizes listed above reflect adding Rive to an otherwise empty application. Some of the above dependencies may already be present in your application, and as a result do not contribute to the size increase when adding Rive. For example, if your app already uses Jetpack Compose, the Compose dependencies will likely already be included in your app’s binary.

The same is true for the C++ standard library, which will be shared across all dependencies with native code.

Additionally, when compiling a release build, R8 will minify your application, removing unused code and resources. This can further reduce the size impact of adding Rive to your application. Ensure your Gradle file contains isMinifyEnabled = true.

Future Work

There are options available to reduce the binary size of the library that can be considered for future work, including:

• Replacing Miniaudio with Oboe for audio support
  • Currently Miniaudio can be removed by compiling Rive Android yourself, using the -PnoAudio Gradle flag
• Modularizing the runtime to allow including Compose support only when needed, and separating the Compose API from the Legacy API
• Making Volley an opt-in dependency for network loading
• Changing C++ compile flags to prefer size over speed (requires performance testing)

Third Party Dependencies

The common Rive C++ runtime includes a number of open source third party dependencies which contribute to its binary weight. These are:

Dependency	Reason
HarfBuzz	Text rendering
Miniaudio	Audio support
SheenBidi	Bidirectional text support
Yoga	Layout
Luau Interpreter	Scripting Support