How to open Korean documents (HWP) — Clean Viewer

Got a Hangul (.hwp / .hwpx) file from a school, office or landlord? Open it in your browser — no install, no sign-up.

Except for online voices in Read aloud, your files don't leave this device
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A Korean school notice (.hwp) received in a messenger, opened as a clean document in Clean Viewer

In Korea, schools, government offices and companies often send documents as Hangul files (.hwp / .hwpx). Most phones and PCs cannot open them without Hancom Office. Clean Viewer opens them for free — no ads, no sign-up.

On an Android phone with the Clean Viewer app

In KakaoTalk, tap the file, tap ⋮ and choose 「다른 앱으로 열기」 (Open with another app), then pick 클린뷰어.
From other apps (mail, messenger): tap the attachment and pick 클린뷰어 — or save the file first and use 「파일 열기」 (Open file) in Clean Viewer.

Without the app — on any phone, PC or iPhone

No install needed. Open the web viewer and pick or drop the file. It also opens Word, Excel, PowerPoint, PDF, ZIP and more.

What you get

Text, tables and pictures, with search and zoom. Fonts and page breaks may differ from the original. Viewing only — no editing.
The menus are in Korean. Your file is opened inside your phone or browser and is never uploaded.

Source: Formats table (Korean) · Privacy policy · Terms of use · checked 2026-10-27