OpenRocket 24.12
Design model rockets and compare simulated flights with OpenRocket, a free, open-source tool with component libraries, stability analysis and flight plots.
Software for Windows
Desktop tools and games for Windows. Check each listing for its documented version, license and download details.
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OpenScreen 2.1.2
Record a window or display, add zooms and cursor effects, and export a product demo with OpenScreen, a free, open-source screen recorder and editor for Windows.
OpenShot 4.0.1
Trim and combine video, photos and audio with OpenShot, a free Windows video editor with multi-track editing, titles, transitions and keyframe animation.
OpenSong 2.2.7
Prepare chord sheets and project worship lyrics with OpenSong for Windows. Transpose songs, arrange presentation sets and print lead sheets.
OpenSpades 0.1.3
Play online voxel firefights and build or destroy terrain with OpenSpades, a free, open-source client compatible with Ace of Spades 0.75 servers.
OpenTelemetry Weaver 0.28.0
Validate telemetry schemas, compare semantic-convention registries and generate code or documentation with OpenTelemetry Weaver, an open-source CLI for Windows.
OpenToonz 1.8
Draw, paint and composite 2D animation with OpenToonz for Windows, a free, open-source application with raster and vector tools, an xsheet and a timeline.
opentrack 2026.1.0
Track head movements and send them to compatible games and flight simulators with opentrack for Windows, using webcam, marker or other supported tracking inputs.
OpenVPN 2.7.8 (I002 Windows installer)
Connect a Windows PC to a configured VPN with OpenVPN Community Edition, including the OpenVPN GUI tray client and a system service.
OpenWebStart 1.14.0
Run JNLP-based Java applications on Windows with OpenWebStart, a free, open-source Java Web Start replacement with JVM management and graphical settings.
OpenWithView 1.11
Hide unused applications from the Windows Open With dialog and restore them when needed with NirSoft's portable freeware utility.
Opera Air 137.0.6036.91
Browse the web with a minimalist interface, built-in soundscapes and guided breaks in Opera Air, a free browser for Windows.
Opera Browser
Browse the web with built-in ad blocking, sidebar messengers and tab organization in Opera, a free browser for Windows.
Oracle Berkeley DB 18.1.40
Embed key-value storage in Windows applications with Oracle Berkeley DB, a database library with transactions, replication and a GUI for browsing data.
Oracle VirtualBox 7.2.22
Run guest operating systems in virtual machines on your Windows PC with Oracle VirtualBox. Use snapshots to revisit configurations and manage VMs through a graphical interface or command line.
OSFMount 3.3.1000
Mount disk images as Windows drives or create temporary RAM disks with OSFMount, a free 64-bit utility from PassMark Software.
OSForensics 11.1 build 1017
Search files and emails, examine recent Windows activity and organize digital evidence with PassMark OSForensics. A limited Free edition and paid editions are available.
osu! (lazer) 2026.1005.0-lazer
Play beatmaps, adjust gameplay mods and create your own maps with osu! (lazer), the free rhythm-game client for 64-bit Windows 10 and later.
Outerbase Studio 0.1.29
Query SQL databases, edit table data and change schemas with Outerbase Studio's Windows desktop wrapper, including drivers for MySQL and PostgreSQL.
Outlook CalDav Synchronizer 4.7.1
Sync Outlook calendars, tasks and contacts with CalDAV and CardDAV servers using this free, open-source Windows Outlook add-in.
OutlookAttachView 3.55
Find attachments across Outlook messages and save selected files to a folder with OutlookAttachView, a free Windows utility for Microsoft Outlook.
OverKeys 0.3.5
Keep an alternative keyboard layout visible while you type on Windows. OverKeys provides a customizable overlay for Colemak, Dvorak, Canary and other layouts.
OVITO Basic 3.17.1
Inspect particle simulations and molecular structures in 3D with OVITO Basic, a free Windows application for visualization and pipeline-based data analysis.
P3X Redis UI 2026.10.100
Browse Redis keys, edit JSON values and inspect database statistics with P3X Redis UI, an open-source desktop Redis client available for Windows.