Free · Windows 64-bit
OpusDesk Notes
A private Windows notes app for everyday use. Keep notes on your computer, organise them your way, and optionally protect them with a local password.
A small detour
Score 0
Ready when you are.
Independent things, one home
Find your next useful corner.
OpusDesk Hub is the home for focused digital products and independent product spaces.
Each product space keeps its own tools, data, and operations.
Product shelf
A place for useful software.
New software will appear here only after it is ready to explain, buy, and download.
Free · Windows 64-bit
OpusDesk Rename
A safe offline batch renamer. Preview every file name, then organise multiple files with find and replace, prefixes, suffixes, or numbering, with Undo for the latest rename.
Free · Windows 64-bit
OpusDesk View
A focused offline image viewer. Select or drop images, then browse, zoom, rotate, or inspect them at actual size without modifying or uploading them.
HK$68 · Windows 64-bit
OpusDesk Image Prep
Prepare local images in consistent JPG, PNG or WebP sizes. Add optional text or image watermarks while keeping the originals unchanged.
HK$38 · Windows 64-bit
OpusDesk PDF Merge
Combine selected PDFs offline, arrange their order, choose page ranges and rotation, then create a new file without changing the originals.
HK$68 · Windows 11 (64-bit)
OpusDesk Hub Screenshot Kit
Turn imported screenshots into step-by-step guides offline. Crop, annotate and cover sensitive details, then export new PNGs or an image-only PDF without changing the originals.
Local NTFS output · No built-in screen capture · Unsigned EXE. Download access is sent by email after purchase.
HK$38 · Windows 64-bit
OpusDesk Hub Image Tools
Compress, resize and convert one image at a time on your computer. Compare results and export JPG, PNG, WebP or AVIF without uploading your images or changing the originals.
Desktop edition of our free web tools · WebView2 required · Traditional Chinese interface. Download access is sent by email after purchase.
HK$159 · Windows 64-bit
OpusDesk Hub Whiteboard
Sketch diagrams, flowcharts and visual notes locally. Add text and images, save editable boards, and export PNG or SVG from a focused Windows drawing workspace.
WebView2 required · No cloud sync, live collaboration or AI generation. Download access is sent by email after purchase.
HK$68 · Windows 64-bit
OpusDesk Hub QR Studio
Create static QR codes for links, Wi-Fi and contact details locally. Customize colors and logos, then export PNG, SVG, JPEG or WebP without uploading your entered content.
Desktop edition of our free web tool · WebView2 required · Unsigned portable EXE. Download access is sent by email after purchase. Test codes before printing.
Explore OpusDesk Hub
Independent spaces, one home.
Choose a focused space. Each one keeps its own purpose, content, and operations.
OpusDesk Hub product space
OpusDesk eBooks
Original reading guides, structured ideas, and lawful digital resources.
OpusDesk Hub product space
OpusDesk Games
Lightweight browser games ready to play whenever you want a short break.
OpusDesk Hub product space
OpusDesk Health Assistant
A free self-care and triage guide built from public health sources. It does not replace professional diagnosis.
OpusDesk Hub product space
OpusDesk IELTS
A focused IELTS self-study space with practice materials, strategies, and full-access learning content.
OpusDesk Hub product space
OpusDesk Hub Arcade
Browse free browser games by category or search the catalogue. Play instantly without installing software or creating an account.
OpusDesk Hub product space
OpusDesk Hub Image Tools
Free browser tools for image compression, resizing, format conversion and target file sizes. Images are processed locally, not uploaded.
OpusDesk Hub product space
OpusDesk Hub Whiteboard
A personal browser drawing workspace for sketches, diagrams and visual notes. Your canvas is saved in this browser.
OpusDesk Hub product space
OpusDesk Hub QR Studio
Create static QR codes in your browser, customize styles and logos, and export image files. Your entered content stays on your device.
OpusDesk Hub product space
OpusDesk Hub PDF Studio
Compress PDFs, arrange pages, add a signature image or turn images into a PDF. Files are processed locally in your browser.
OpusDesk Hub product space
OpusDesk Hub Audio Studio
Trim audio, work with multiple tracks and apply effects in your browser. Export WAV, MP3 or FLAC from your local workspace.
OpusDesk Hub product space
OpusDesk Hub Video Studio
Trim and arrange video, add text and audio, then export an MP4 locally. Use a current desktop Chrome or Edge browser.
Here to help.
Questions about a purchase or a product? Get in touch.