#29 · Primary category： Self-Hosted File Processing & Conversion
document
Edit DOCX/XLSX/PPTX in your browser — client-side, no server, works offline (OnlyOffice + WebAssembly)
Project last updated：08/27/26
GitHub Stars
1.9K
Forks
205
Contributors
6
License
AGPL-3.0
Why we included this project
If you work with Word, Excel, or PowerPoint files and don't want to run a full document server stack, this project is worth a look. The OnlyOffice engine and its WASM converter run inside the visitor's browser, so editing happens locally and files are never uploaded, which matters when the content is sensitive. It can also annotate PDFs, export any supported file to PDF, and on Chromium it saves straight back to the file you opened. Deployment is light: a static build behind any web server, or a one-line Docker run, and after the first load it keeps working offline as a PWA. If your portal already needs an embedded viewer, the postMessage iframe API hands off document editing while your own system keeps control of auth and storage.
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