KiteQR

Scan, decode, generate and render barcodes from commonMain on Kotlin Multiplatform. The API is ZXing's, so code you already wrote for Android reads the same here.

There is no platform barcode API underneath, no expect/actual, and no JNI. The only dependency is kotlin-stdlib.

import io.github.yuroyami.kiteqr.Qr
import io.github.yuroyami.kiteqr.RGBLuminanceSource
import io.github.yuroyami.kiteqr.render.toPng
import io.github.yuroyami.kiteqr.render.toSvg

val matrix = Qr.encode("https://github.com/yuroyami/KiteQR")
val svg    = matrix.toSvg()
val png    = matrix.toPng(scale = 8)

val text: String? = Qr.decode(RGBLuminanceSource(w, h, pixels)).getText()

Modules

Both artifacts are on Maven Central. See Getting started.

Artifact	What it gives you
io.github.yuroyami:kiteqr	The engine: scan, decode, encode, and SVG + PNG rendering. Pure common, kotlin-stdlib only. 22 targets.
io.github.yuroyami:kiteqr-compose	The Compose Multiplatform binding: DrawScope drawing, ImageBitmap, the QrCode composable. 7 targets, Android minSdk 24.

Guides

• Getting started
• Generating codes
• Scanning and decoding
• Rendering
• Compose binding
• Supported platforms
• Differences from ZXing

License

Apache-2.0, derived from ZXing (Apache-2.0). See NOTICE for attribution.