Figma cut out-of-memory crashes by 75% and memory warnings by 92% over six months of internal engineering work. Engineers Russell and Sanket shipped three concrete improvements: lighter file loading, memory fragmentation fixes, and automatic release of memory that is no longer in use.
The fragmentation fix is the most technically interesting thread here. Memory fragmentation is a slow, invisible drain that compounds over long sessions, and fixing it without disrupting the editor's runtime is non-trivial. The video runs only two minutes, but the specific breakdown by problem type, file loading versus fragmentation versus idle memory, is worth watching for engineers who want the mental model, not just the metrics.
Figma is a browser-based tool handling gigabyte-scale design files in a memory-constrained environment. These numbers are not incremental polish. A 92% reduction in warnings means the failure mode that interrupted designer flow is now nearly gone. The next question is how this holds under multiplayer sessions and large component libraries, which the video does not address.
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