NormCap 0.6.0
Copy text from a selected screen region with NormCap, a free, open-source OCR tool for Windows that also reads QR codes and barcodes.
Utilities for Windows
Compare published utilities listings for Windows. Check each application's documented requirements, features and limitations before following its download link.
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Notezilla 9.0.43
Keep sticky notes on your Windows desktop, attach them to documents or websites, and add reminders and checklists. Notezilla is paid software with a 30-day trial.
Numara 7.6.3
Write calculations alongside notes with Numara, a free notepad calculator for Windows with live results, unit conversions and function plotting.
NUSGet 1.5.3
Download Wii, vWii and DSi content from Nintendo Update Servers, with WAD/TAD packing and decryption for free titles that have a server-provided ticket.
NVCleanstall 1.19.0
Choose which NVIDIA GeForce driver components to install with NVCleanstall, a free Windows utility that can also prepare a reusable custom installer.
NVDA 2026.3
Read Windows applications through speech or a refreshable braille display with NVDA, a free, open-source screen reader from NV Access.
NVIDIA Profile Inspector 3.0.2.1
Edit NVIDIA driver profiles for individual Windows games and applications, back up .nip presets and access settings beyond the standard control panel.
NXPowerLite Desktop 11.0.1
Reduce PDF, Microsoft Office and image file sizes offline with NXPowerLite Desktop for Windows, preserving their formats and optimizing Outlook attachments.
Nyrna 2.27.2
Suspend and resume Windows games and demanding applications with Nyrna, a free, open-source utility with hotkeys, a graphical interface and command-line controls.
O&O DiskImage 23.1.26049
Back up a Windows PC, recover individual files or clone a drive with O&O DiskImage Premium, a paid backup application with a 30-day trial.
O&O Lanytix
Discover devices on your local network with O&O Lanytix, a free portable Windows tool that lists IP and MAC addresses, response times and device history.
O&O RegEditor 16.1.6660
Edit Windows registry keys and values, search with regular expressions, and save frequently used paths with O&O RegEditor, a free portable registry editor.
O&O ShutUp10 3.6.1135
Review Windows 10 and 11 privacy options in one place with O&O ShutUp10, a free portable utility with recommendations for individual settings.
oCam 550.0
Record a screen region, gameplay or audio with oCam for Windows. Save video or animated GIFs, capture still images, and choose system sound or microphone input.
OCCT 17.1.10
Stress-test CPU, memory and graphics hardware with OCCT for Windows. The Personal edition combines stability tests, sensor monitoring and benchmarks, with limits on free use.
OggSync 10.1.0
Synchronize Outlook with Google Calendar on Windows. OggSync offers manual single-calendar sync for free, with multiple calendars and scheduled sync in Pro.
Okular master build 8194 (nightly)
Read PDFs, annotate documents and browse ebooks or comics with KDE's free document viewer. This direct Windows download is an untested nightly build, not the recommended Microsoft Store release.
ONLYOFFICE Desktop Editors 10.0.0
Create and edit documents, spreadsheets, presentations and PDFs offline with ONLYOFFICE Desktop Editors, a free office suite for Windows.
OnlyStopWatch 6.63
Measure elapsed time or run a countdown with OnlyStopWatch, a portable Windows timer with a full-screen display and optional milliseconds.
OP Auto Clicker 4.1
Automate repeated mouse clicks on Windows with adjustable intervals, a fixed or cursor-following position, and a repeat count or continuous clicking.
Open Contacts 6.2.1.640
Organize people, companies and their relationships with Open Contacts, a freeware Windows address book with custom fields and contact import/export.
OpenBoard 1.7.7
Write and annotate lessons on a digital whiteboard with OpenBoard, a free, open-source teaching application for Windows 10 and later.
OpenDeck 2.14.2
Configure an Elgato Stream Deck with custom actions, profiles and compatible Stream Deck plugins using OpenDeck, a free, open-source controller app for Windows.
OpenedFilesView 1.91
Find which process holds a file open with OpenedFilesView, a free Windows utility for investigating sharing violations. Administrator rights are required; Windows 10/11 with Secure Boot enabled is unsupported.