A Compose Multiplatform library providing customizable Squircle shapes for modern UI components.

This project maintains two long-lived branches:

• Built with the latest stable Compose Multiplatform / Jetpack Compose versions.
• Recommended for production apps.
• Published versions follow semantic versioning (e.g. 5.1.1).

• Built with alpha / beta / RC Compose versions.
• May introduce breaking changes earlier.
• Intended for early adopters and testing upcoming Compose updates.

If you're building a production app, use the latest stable release from Maven Central.

• Customizable Squircle Shapes — Smooth transition between squares and circles.
• MaterialTheme Integration — Use directly inside MaterialTheme.shapes.
• Corner Smoothing Control — Fine-tune curvature for precise design language.
• Compose Multiplatform Support — Android, iOS, Desktop (JVM), Web (WasmJS).
• Canvas Support — Draw squircles using drawSquircle().

The library is now published under the com.stoyanvuchev namespace.

If upgrading from older versions, replace: io.github.stoyan-vuchev with com.stoyanvuchev

Check out the updated Setup guide here

See full release history here:
https://github.com/stoyan-vuchev/squircle-shape/releases

• AGP: 9.0.0+
• Kotlin: 2.3.0+
• Compose Multiplatform: 1.10.1+

• AGP: 9.0.0+
• Kotlin: 2.3.0+
• Jetpack Compose: 1.10.3+
• Minimum SDK: 23
• Compile SDK: 36

• AGP: 9.0.0+
• Kotlin: 2.3.0+
• Compose Multiplatform: 1.11.0-alpha02+

• AGP: 9.0.0+
• Kotlin: 2.3.0+
• Jetpack Compose: 1.11.0-alpha04+
• Minimum SDK: 23
• Compile SDK: 36

1. Add the dependency in your shared module's build.gradle.kts:

• Latest version:

sourceSets {
    
    val commonMain by getting {
        
        dependencies {
            
            // ...
            
            implementation("com.stoyanvuchev:squircle-shape:5.1.1")
          
        }
      
    }

    // ...
  
}

• Or if you're using a version catalog (e.g. libs.versions.toml), declare it in the catalog instead.

[versions]
squircle-shape = "5.1.1"

[libraries]
squircle-shape = { group = "com.stoyanvuchev", name = "squircle-shape", version.ref = "squircle-shape" }

• Then include the dependency in your shared module build.gradle.kts file.

sourceSets {

  val commonMain by getting {

    dependencies {

      // ...

      implementation(libs.squircle.shape)

    }

  }

  // ...

}

2. Sync and rebuild the project. 🔄️🔨✅

1. Add the Squircle Shape dependency in your module build.gradle.kts file.

• Latest version:

dependencies {
            
    // ...

    implementation("com.stoyanvuchev:squircle-shape-android:5.1.1")
  
}

• Or if you're using a version catalog (e.g. libs.versions.toml), declare it in the catalog instead.

[versions]
squircle-shape = "5.1.1"

[libraries]
squircle-shape = { group = "com.stoyanvuchev", name = "squircle-shape-android", version.ref = "squircle-shape" }

• Then include the dependency in your module build.gradle.kts file.

dependencies {

  // ...

  implementation(libs.squircle.shape)

}

2. Sync and rebuild the project. 🔄️🔨✅

Define squircle shapes in your theme to use them consistently across your app:

val shapes = Shapes(
    small = SquircleShape(radius = 16.dp, cornerSmoothing = CornerSmoothing.Medium),
    medium = SquircleShape(radius = 32.dp, cornerSmoothing = CornerSmoothing.Medium),
    large = SquircleShape(percent = 100, cornerSmoothing = CornerSmoothing.Medium)
)

MaterialTheme(
    shapes = shapes
) {

    // ...

    Button(
        onClick = { /* Action */ },
        shape = MaterialTheme.shapes.large // Clipped to the provided `large` material theme shape.
    ) {
        Text(text = "Full Squircle")
    }

    // ...

}

Clip UI components separately by using a SquircleShape() function.

Image(
    modifier = Modifier
        .size(128.dp)
        .clip(
            shape = SquircleShape(
                percent = 100,
                cornerSmoothing = CornerSmoothing.Medium
            )
        ), // Clipped to a fully rounded squircle shape.
    painter = painterResource(R.drawable.mlbb_novaria),
    contentDescription = "An image of Novaria.",
    contentScale = ContentScale.Crop
)

You can customize the radii for all corners, or for each corner independently. Supported corner values are:

• Int for percent-based corner radius in range 0..100
• Float for pixel-based corner radius e.g. 50f
• Dp for density pixel-based corner radius e.g. 16.dp

// Single-corner percent-based radius implementation.
SquircleShape(
    percent = 100,
    cornerSmoothing = .6f
)

// Single-corner pixel-based radius implementation.
SquircleShape(
    radius = 32f,
    cornerSmoothing = .6f
)

// Single-corner density pixel-based radius implementation.
SquircleShape(
    radius = 32.dp,
    cornerSmoothing = .6f
)

// Multi-corner percent-based radius implementation.
SquircleShape(
    topStart = 25,
    topEnd = 5,
    bottomStart = 25,
    bottomEnd = 5,
    cornerSmoothing = .6f
)

// Multi-corner pixel-based radius implementation.
SquircleShape(
    topStart = 32f,
    topEnd = 8f,
    bottomStart = 32f,
    bottomEnd = 8f,
    cornerSmoothing = .6f
)

// Multi-corner density pixel-based radius implementation.
SquircleShape(
    topStart = 32.dp,
    topEnd = 8.dp,
    bottomStart = 32.dp,
    bottomEnd = 8.dp,
    cornerSmoothing = .6f
)

You can draw squircle shapes on a canvas for custom graphics.

Note: currently drawSquircle only accepts pixel-based values for each corner:

Canvas(
    modifier = Modifier.size(150.dp),
    onDraw = {
    
        drawSquircle(
            color = Color.Blue,
            topLeft = Offset.Zero,
            size = this.size,
            topLeftCorner = 32.dp.toPx(),
            topRightCorner = 8.dp.toPx(),
            bottomRightCorner = 32.dp.toPx(),
            bottomLeftCorner = 8.dp.toPx(),
            cornerSmoothing = .6f
        )
    
    }
)

MIT License

Copyright (c) 2023-2026 Stoyan Vuchev

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

Created by @stoyan-vuchev – feel free to reach out!

📧 Email: contact@stoyanvuchev.com