Open local documents in web office — without changing how you work.
RacoDock is a Windows desktop application that connects local Office and Hangul files with Microsoft 365 Web and Hancom Docs, then keeps the edited document connected to your local workflow.
RacoDock
Local file → web office → local file
Meet Doong2Dock
RacoDock's twin-themed Windows desktop launcher, built on the latest v0.9-alpha2 document workflow.
Doong2Dock for Windows
Double-click local Word, Excel, PowerPoint, Hangul and PDF files to open supported web office workflows. Microsoft sign-in uses OAuth, with local-file synchronization safeguards.
25f6926bde3698a3be113bef108975501dc8fefa4deb6e5b5eeef569b5458726Doong2Dock for Android
View local documents on your phone without signing in. Separate from the Windows web-office launcher: read-only, offline document viewing.
Doong2Dock Mobile Viewer
Open HWP, HWPX, Word, Excel, PowerPoint, PDF, images and text files. No Microsoft account, Hancom account, or cloud upload required.
D2 Reader preview: DOCX and text files now have optional reflow reading, auto page turn and Android voice reading. TTS and pagination need real-device checks. Real-device retesting is required; HWP/HWPX and other document layouts are still not fully validated. Android may request permission to install APKs from your browser. Not on Google Play yet.
SHA-256: 867c9d9012a7e1774aec16cc0e8a72d2a72c3cb11c3bbb3c04cc5ce9cfb7b55a
One desktop workflow for local files and web office
RacoDock removes the repetitive upload-download steps that usually sit between Windows files and browser-based office tools.
Open from Windows
Start from the local document you already have. RacoDock is designed around the familiar double-click file workflow.
Edit in supported web office
Work with Microsoft 365 Web for Office documents and Hancom Docs for supported Hangul document workflows.
Return to the local file
Keep web edits connected to the original local workflow with synchronization and conflict-preservation safeguards.
From desktop file to browser editor in a few steps
RacoDock receives the Windows file and identifies the supported office workflow.
The document is opened through the appropriate cloud office flow. Microsoft authentication uses OAuth rather than stored passwords.
After web editing, RacoDock brings the updated document back into the local workflow with safety checks designed to reduce file-loss risk.
Common Office and Hangul formats
Current private-beta development focuses on the document formats most commonly used in Windows office environments.
Built around safer document handling
RacoDock is being developed for real desktop workflows where preserving the user's original file matters.
RacoDock does not need to store the user's Microsoft password.
Document synchronization is designed with integrity checks and conflict-preservation behavior.
The original Windows document remains the center of the user's workflow rather than being replaced by a separate cloud-only process.
Developed by Chakhamlab
RacoDock is developed and operated by Chakhamlab (착함랩), a registered software development business founded in March 2026 in Busan, South Korea. The business is registered for information and communications services and computer programming services.
RacoDock is currently in private beta.
Interested in testing the Windows workflow or discussing an integration?