Korean HWP/HWPX files (used by government agencies, schools, and businesses) require Hangul Office (한컴 오피스) to open, which is not available on all platforms (especially macOS/Linux) and requires installation. This extension lets anyone open and edit HWP files directly in the browser.

User encounters an HWP/HWPX file on the web (download or link). The extension intercepts the download or detects the link, then opens a built-in viewer tab (viewer.html) powered by WebAssembly. The user can view, edit, print, and save the document entirely within the browser. No data leaves the local machine.

Target users: Citizens viewing Korean government/public institution documents / Parents checking school notices (가정통신문) / Office workers reviewing contracts and reports / macOS/Linux users without Hangul Office / Anyone who wants to open HWP files without installing additional software

viewer-DeyDsn0S.js is a large minified bundle (844KB) that was not fully inspected; however, its content is the WASM-powered viewer/editor UI, not auth or payment logic.
All 'pro' keyword hits were verified as false positives (substrings in process, protocol, processed, provider, stopPropagation, etc.).
External font CDN (cdn.jsdelivr.net) loads Korean fonts but does not require authentication or transmit user data.

Monetization

No paid features detected

No payment integration, license checks, premium feature gating, or upgrade prompts found in the codebase. The store description explicitly states '무료로' (free) and 'MIT 라이선스 — 개인/기업 모두 무료' (MIT license - free for personal/business). All keyword hits for 'paid' are false positives — 'pro' appears only as substrings in words like 'process', 'protocol', 'processed', 'provider', etc., not as references to a premium plan. No Stripe, PayPal, or other payment platform integration. No license key validation.

Confidence: 97
Payment platform: --
Source: AI / High
Login required: No
Reason: No login, authentication, or account system exists anywhere in the extension. All processing happens locally via WebAssembly (WASM) within the browser. The viewer opens as an internal extension page (chrome.runtime.getURL('viewer.html')). No external services requiring authentication are contacted. Store description explicitly states '회원가입 불필요' (no registration required) and '어떠한 개인정보도 수집하지 않습니다' (no personal information collected). The only external fetches are for Korean web fonts from cdn.jsdelivr.net.

Permission risk

High-risk permissions

This estimate uses declared permissions and host permissions to assess access scope and sensitivity.

扩展能力较强：activeTab、downloads、storage
主机权限覆盖范围较宽

Publisher

tangokorea

김영관

Email: [email protected]
Phone: --
Address: 성환읍 성환1로 255 2층 천안시, 충청남도 31011 KR

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Host access