Dev Tools · 3h ago
New Tool Generates Large Excel Files in Browser Using WASM and Web Workers
A developer built a free online tool that generates Excel files with millions of rows directly in the browser using WebAssembly and Web Workers. The architecture combines Go's Excelize library compiled to WASM for near-native speed, while a Web Worker keeps the UI responsive during generation. No server uploads are needed, improving privacy and scalability.
Meridian48 take
The tool itself is niche, but the WASM+Web Worker pattern is a solid reference for offloading heavy computation to the client.
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Generate Excel Files with a Specified Number of Rows (WASM + Web Worker Best Practice!) →
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