Original reproducer was created by @tj-mc: https://github.com/tj-mc/styled-components-native-perf-reproducer
This is an Expo SDK 49 App reproducer to demonstrate the performance difference between popular style libraries and react-native built-in styling.
Tests include React Native StyleSheet, Styled Components, Tamagui, NativeWind, Emotion, Zephyr, Dripsy, Gluestack [1] [2], fast-styles, Tailwind React Native Classnames(twrnc), Shopify's restyle and react-native-unistyles
Feel free to fork or PR this repo with improvements or to include other styling libraries.
Note: Tamagui scores are surprisingly low, I've created a discussion about it
Note: Tamagui compiler is turned off in DEV mode, production/release performance is greatly improved, it reaches StyleSheet levels.
1000 items are rendered in Array.map and it's a basic test in DEV mode. When more features of each library are added (eg. media queries etc) as your project grows the measurements may vary by a lot.
Read this comment on how to test the performance: styled-components/styled-components#3940 (comment)
Demo video with TAMAGUI_TARGET=native expo start --no-dev --minify:
Simulator.Screen.Recording.-.iPhone.13.-.2023-08-10.at.11.12.04.mp4
Mac Specs:
Mac Studio M1 Ultra 1TB SSD 64GB RAM
Simulator: iPhone 13, iOS 16.4
| 1 | 2 | 3 | 4 | 5 | 6 | Avg | % Slowdown | |
|---|---|---|---|---|---|---|---|---|
| Native | 142 | 138 | 141 | 143 | 143 | 144 | 141.83 | 0 |
| Unistyles | 149 | 144 | 149 | 147 | 149 | 149 | 147.5 | 4% |
| twrnc | 172 | 173 | 163 | 160 | 161 | 161 | 164.16 | 15.74% |
| fast-styles | 170 | 167 | 172 | 175 | 172 | 172 | 171.33 | 20.81% |
| Restyle | 188 | 188 | 187 | 189 | 189 | 187 | 188.33 | 32.77% |
| Zephyr | 184 | 195 | 190 | 190 | 192 | 184 | 189.16 | 33.197% |
| Styled v6 | 222 | 215 | 230 | 204 | 224 | 230 | 221.83 | 56.47% |
| Emotion | 276 | 267 | 270 | 268 | 276 | 271 | 271.33 | 91.42% |
| NativeWind | 289 | 298 | 301 | 286 | 300 | 295 | 294.83 | 107.99% |
| Gluestack | 291 | 295 | 302 | 298 | 306 | 311 | 301.5 | 112.84% |
| Tamagui | 306 | 304 | 308 | 302 | 304 | 306 | 305.0 | 115.21% |
| Dripsy | 692 | 665 | 690 | 672 | 675 | 681 | 678.33 | 378.99% |
(after every run metro is shut down, always start fresh)
| 1 | 2 | 3 | 4 | 5 | 6 | Avg | % Slowdown | |
|---|---|---|---|---|---|---|---|---|
| Native | 54 | 55 | 53 | 60 | 59 | 56 | 55.5 | 0 |
| Unistyles | 57 | 57 | 56 | 58 | 59 | 58 | 57.83 | 4.21% |
| fast-styles | 65 | 66 | 66 | 68 | 67 | 64 | 66 | 18.92% |
| twrnc | 66 | 74 | 68 | 66 | 65 | 67 | 67 | 20.72% |
| Zephyr | 76 | 79 | 77 | 78 | 78 | 79 | 77.83 | 40.36% |
| Restyle | 76 | 77 | 78 | 78 | 85 | 78 | 78.33 | 41.08% |
| Styled v6 | 100 | 100 | 100 | 100 | 101 | 102 | 100.5 | 81.08% |
| Emotion | 134 | 136 | 135 | 141 | 134 | 136 | 135.33 | 144.86% |
| NativeWind | 144 | 136 | 134 | 139 | 133 | 138 | 137.33 | 147.68% |
| Tamagui | 156 | 151 | 158 | 159 | 156 | 159 | 156.5 | 182.88% |
| Gluestack | 177 | 179 | 175 | 178 | 177 | 178 | 177.66 | 220.97% |
| Dripsy | 538 | 566 | 556 | 564 | 556 | 563 | 556.16 | 904.65% |
- Start the profiler by pressing Shift M and open React Dev Tools.
- Open profiler and hit record
- Press the toggle button and stop recording
- Record the time to render App.ts
- Average the result across at least 3 runs