Figma: Building Collaborative Design in the Browser
How Figma built real-time multiplayer design collaboration using WebAssembly and WebSockets — in a browser.
The challenge
Design tools like Sketch and Adobe XD were desktop applications. Collaboration required sharing files, which created version conflicts. Figma's founder Dylan Field wanted to build a design tool where multiple designers could work simultaneously — like Google Docs but for design. Building a high-performance vector design tool in a browser seemed technically impossible in 2012.
The strategy
Figma made the bet that WebAssembly (then not yet standardized) would eventually enable near-native performance in browsers. They built their core rendering engine in C++ and compiled it to WebAssembly. For collaboration, they used an algorithm called Operational Transformation (the same used by Google Docs) adapted for design operations.
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Try the full case free →Key lessons (preview)
- Betting on emerging technology (WebAssembly) before it's mainstream creates unassailable technical moats.
- Real-time collaboration transforms a tool into a platform — the value is in the network of collaborators.
- Product-led growth works when the product creates immediate visible value in team contexts.