A Lottie file is a contract between design and engineering — write it cleanly.
Where this fits
A Lottie file is a contract between design and engineering — write it cleanly. This guide skips the theory and keeps what has worked across hundreds of shipped campaigns.
The essentials
- Design with shapes and paths; raster assets bloat files fast
- Respect a 50KB budget per animation for web delivery
- Name layers like variables — someone will debug them
- Test on low-end Android before sign-off, not after launch
- Ship a JSON manifest with sizes, triggers, and fallbacks
The proof point
60fps — smoothness maintained on mid-range phones by files following this budget discipline.
The bottom line
Motion that ships is motion that was designed to ship.
If this sparked ideas, grab a slot with our strategy team — the first sketch is on us.
