esbuild transform vs swc

Should You Leave Babel for SWC? 1.05s vs 46ms

Babel 8.0.6 vs SWC 1.16.13 vs esbuild 0.28.2 per-file transform on 501 TSX files (526 KB): medians 1.05 s / 46 ms / 83 ms. esbuild bundle of same entry 40 ms. Sample Comp0.js sizes close (1089/1121/1167 B). Leave Babel if you only strip TS/JSX; keep it for macros/unported plugins.