CutWire Prism
CutWire Prism: A broad, extensible video mixer for technical users who want a free desktop tool. Ranked #16 of 34 in Virtual Camera Software by our editors (7.3/10); pricing: Free plan; best for technical users wanting a free, extensible mixer.
At a glance
- Editor score7.3 / 10
- PricingFree plan
- Best forTechnical users wanting a free, extensible mixer
- Free planYes
- Paid fromFree
- Scene compositionYes
- Facts checked20 Sep 2026
Where it wins
- Free GPLv3 desktop application with no account or telemetry
- Broad inputs, node-based compositing, effects, audio, and scripting
- Virtual webcam, NDI, recording, and cross-platform desktop support
Where it doesn't
- macOS has no prebuilt binary yet
- Virtual camera output is unavailable on macOS
- The node-based workspace may suit technical users better than beginners
Our verdict on CutWire Prism
CutWire Prism is a free, GPLv3-licensed desktop application for live video mixing and event production. It is aimed at volunteers, streamers, schools, churches, theatres, small venues, and local broadcasters that need to combine cameras, screens, windows, NDI feeds, phone cameras, media files, text, shaders, and overlays. Its node-based media graph connects inputs, processing, layers, A/B selection, and outputs, while the two-deck mixer provides a crossfader, AUTO, CUT, and transition styles.
The published Free plan costs 0 and includes the complete desktop application, with no account, telemetry, or feature tier. That matters for teams seeking an open-source tool without a paid upgrade path. Prism also covers a wide production workflow: users can apply background removal, chroma key, blur, crop, flip, and other effects; process audio with EQ, compression, gates, and reverb; and send the program to a projector, recording, NDI, or virtual webcam output. Lua scripting and GLSL shader support add room for custom workflows.
Its ecosystem fit is practical for live production. Virtual webcam output works with Zoom, Microsoft Teams, OBS, web browsers, and other applications, while NDI, WebSocket, and browser support extend its connection options. Windows and Linux are supported, and macOS is covered with an important constraint: there is no prebuilt binary yet, and virtual camera output is unavailable there. Choose CutWire Prism if you want a free, extensible mixer with broad inputs, compositing, audio routing, and technical customization. A simpler virtual camera tool may be a better choice if your priority is a minimal setup rather than node-based production control.
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CutWire Prism pricing
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CutWire Prism fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Supported platforms | Linux, Windows, macOS |
| Camera inputs | Not verified |
| Scene composition | Yes |
| Background effects | Yes |
| Virtual camera outputs | Not verified |
| Audio routing | Yes |
| Deployment | Desktop |
| Platforms | Windows, macOS, Linux |
| Support | Email, Community, Docs |
| Built for | Solo, Small business, Mid-market (editorial estimate) |
| Integrations | 6 integrations: OBS, Zoom, Microsoft Teams, NDI, WebSocket, Web browsers |
| Pricing | Free plan (source) |
| Website | cutwire.org |
| Facts checked | 20 Sep 2026 |
CutWire Prism integrations
CutWire Prism lists 6 integrations on its own site.
- OBS
- Zoom
- Microsoft Teams
- NDI
- WebSocket
- Web browsers
Alternatives to CutWire Prism
- NVIDIA BroadcastA free RTX-powered virtual camera suite for cleaner calls, streams, and recordings.9.3
- ManyCamA broad virtual camera toolkit for teams mixing video, audio, scenes, and streaming.8.8
- OBS StudioA flexible free production tool for creators who want extensible desktop scenes.8.7
See all CutWire Prism alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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