Serverless Web Office by ZIZIYI – Private, In-Browser Office Suite via WebAssembly

Summary: Serverless Web Office is a full-featured office suite running entirely in the browser using WebAssembly and OnlyOffice. It supports Word, Excel, and PowerPoint formats without any backend, ensuring files never leave the device and no installation or accounts are required.

What it does

It processes and edits docx, xlsx, and pptx files locally in the browser using the OnlyOffice core compiled to WebAssembly, eliminating the need for server interaction.

Who it's for

Users who require private, offline-capable document editing without installing large software or uploading files to cloud services.

Why it matters

It prevents data leakage by keeping all file processing client-side, offering privacy and speed without backend dependencies.