This content originally appeared on DEV Community and was authored by Mohit Rajput
If you've ever wondered, "Why is my composable recomposing so many times?" — you're not alone 😅
Jetpack Compose makes UI building elegant, but understanding when and why recomposition happens can get tricky.
Recently, I came across an awesome open-source library 👉 Rebugger — and it's a total game-changer!
🔍 What Rebugger Does
Rebugger helps you visualise recompositions in real-time by showing which parameters triggered a recomposition and how often it happens — right inside your UI or logcat.
No need to guess anymore — you see exactly what changed and why Compose decided to recompose.
🧠 How to Use
Just wrap your composable with the Rebugger composable, providing the variables you want to track in the trackMap:
Rebugger(trackMap = mapOf(
"state" to statekot, // Replace with your actual state/variable
"user" to user, // Replace with your actual state/variable
"products" to products // Replace with your actual state/variable
)) {
// Your Composable Content goes here
}
And you'll instantly see recomposition info in logcat.
This is perfect for performance tuning and code reviews.
⚡ Why It’s Useful
- Identify unnecessary recompositions instantly.
- Optimize your Compose code for better performance.
- Great tool for learning Compose internals and debugging UI behavior.
Big thanks 🙌 to @theapache64 for creating this tool — I wish I had it when I started migrating to Compose!
If you’re working with Jetpack Compose, this one is absolutely worth adding to your dev toolbox. 🧰
Try it out here: https://github.com/theapache64/rebugger
💬 Let's Discuss
Have you used any other tools or tricks to debug recomposition?
Would love to hear your favourites below 👇
#Android #JetpackCompose #Recomposition #Performance #AndroidDev #Kotlin #MobileDevelopment
This content originally appeared on DEV Community and was authored by Mohit Rajput
Mohit Rajput | Sciencx (2025-10-28T20:43:57+00:00) Debugging Recompositions in Jetpack Compose. Retrieved from https://www.scien.cx/2025/10/28/debugging-recompositions-in-jetpack-compose/
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