rhwp - HWP Document Viewer & Editor

Open and edit HWP/HWPX files directly in your browser. No installation, no ads, free.

rhwp is a free and open-source extension that lets you open, edit, and print HWP/HWPX documents directly in your browser. No separate software installation is required. Key Features: Auto-open HWP/HWPX files in the viewer when downloading from the web Document editing: text input/modification, table editing, formatting Printing: Ctrl+P for print preview, save as PDF or send to printer Save edited documents as HWP files Open files via drag & drop (with a confirmation step) Auto-detect HWP links on web pages and display an icon badge Document info preview card on mouse hover Right-click menu: "Open with rhwp" Privacy: All processing happens in the browser via WebAssembly (WASM) Files are never sent to any external server No ads, no tracking, no sign-up required We do not collect any personal information Notice This product was developed with reference to the HWP (.hwp) file format specification published by Hancom Inc. Trademark "Hangul", "Hancom", "HWP", and "HWPX" are registered trademarks of Hancom Inc. This package is an independent open-source project with no affiliation, sponsorship, or endorsement by Hancom Inc. [v0.8.7 Changes — 2026-10-06] ▣ v0.8.7 (2026-10-06) Highlights - Corrected inline table placement and page continuation of nested and rowspan tables. - Improved English UI, hyperlink editing and preservation, search counts, and table editing. - Restored compatible thumbnail decompression and strengthened document input boundaries. - Corrected download-completion handling and automatic opening of saved documents. - No new permissions compared with v0.8.6. [Release] https://github.com/edwardkim/rhwp/releases [Detailed changes and contributors] https://github.com/edwardkim/rhwp/blob/main/CHANGELOG.md [Source code] https://github.com/edwardkim/rhwp