24 → 48 fpsWeb video
Video sites in the browser, in a normal window or full-page mode.
Real-time frame
generation for Mac
OpenDuckFrame is a free, open-source Mac app for real-time frame generation and upscaling. Choose a window, display or local video for smoother, clearer pictures. All picture processing happens on your Mac.
↓ OpenDuckFrame.dmg · macOS 14+ · Apple silicon
$ git clone https://github.com/Jun-bao/OpenDuckFrame
Free · Open source (MIT) · No account
What is OpenDuckFrame?
OpenDuckFrame is a native Mac picture-enhancement app. It detects the source frame rate, creates in-between frames with RIFE or Apple interpolation, and lets you configure upscaling independently. Windows, displays and local video are supported inputs. Pictures are not uploaded.
Read the quick start →- 01
Detects the real frame rate
Counts only frames that actually change, so 24 fps video counts as 24 even on a 120 Hz display.
- 02
RIFE and Apple interpolation
Choose a target frame rate or request 2×, 3× or 4× generation. Actual output depends on the engine, source resolution and display refresh rate.
- 03
Real-time upscaling
Upscale low-resolution pictures with methods such as Lanczos and MetalFX. Configure scaling and frame generation separately; detail and processing cost vary by method.
- 04
Steps down when the Mac can't keep up
Falls back to a lower multiplier instead of stuttering.
- 05
Passes through at the display limit
When content × multiplier exceeds the refresh rate, the original is shown and the GPU rests.
- 06
Frame rates at a glance
A small overlay shows the content rate, the output rate and the current multiplier.
- 07
Everything stays local
Capture and models run on your Mac. No account, and the picture never leaves the machine.
Pick by picture, not by parameter
The technology library says what each frame-generation and upscaling method suits and what it costs. Choose a preset and press Use.
What can you use it on?
Any moving picture in a window. These are the favourites.
24 → 48 fps
24 → 48 fpsDownloaded video
Films and series in your player, with pans that no longer judder.
24 → 48 fpsAnimation
Low-frame-rate animation with smoother motion.
1080p → 1440pGame upscaling
Render games at a lower resolution for more frames, then upscale to your screen.
PC → MacWindows games streamed to Mac
Stream games from a Windows PC and upscale them on the Mac for a sharper picture.
720p → 1440pLow-resolution sources
Old films and low-bitrate video, upscaled to your screen.
Pictures and frame-rate values are illustrative. Actual results depend on the Mac, engine and source.
Download
Release builds are published on GitHub, together with every earlier version.
All releases →- Drag to ApplicationsOpen the downloaded .dmg and drag OpenDuckFrame into Applications. This community build is not Apple notarized; macOS may block its first launch.
- Allow screen recordingThe first time you choose a window, turn on OpenDuckFrame in System Settings › Privacy & Security › Screen Recording.
- Choose a window and startPick the source in the Quality Workbench and press Start. After three seconds the output covers the original window.
In this version
- Real-time frame generation and upscaling for windows, displays and video files, with a frame-rate overlay.
- Detects the content frame rate, steps down when needed and passes through at the display limit.
- Local video playback, subtitles, Quick Look previews and an interface in 17 languages.
Known limits
- Frame generation adds latency, which varies with engine, resolution and quality settings. Compare original and enhanced output for latency-sensitive use.
- macOS full screen (the green button) is not supported yet; use a normal window or full-page mode.
FAQ
Something else? Join the discussion
What is OpenDuckFrame?
OpenDuckFrame is a free, MIT-licensed Mac app for real-time frame generation and upscaling. It enhances existing windows, displays and local video, with RIFE and Apple interpolation, independent scaling and local playback.
Which Macs are supported? What about Windows and Intel?
Apple silicon Macs on macOS 14 or later are supported. Apple interpolation and some other engines require macOS 26 and compatible hardware and inputs. Intel Macs, Windows, iPhone and iPad are not currently supported.
Does it add latency?
Yes. Generating in-between pictures adds latency, which varies with engine, resolution and quality settings. Start with 2× and compare Original, Enhanced and Comparison views; choose carefully for latency-sensitive use.
Does it work in full screen?
Normal windows and full-page video work today. macOS full screen is in development.
Is anything uploaded?
No. Capture, detection and frame generation all run on your Mac, and there is no account.
How much does it cost?
Nothing. The source code is on GitHub under the MIT License.
macOS says it can't verify the developer.
This community build is not Apple notarized. If you trust the download, review its blocked-launch message in System Settings → Privacy & Security and decide whether to allow it. The app does not change system security settings.
How do I generate frames for video on a Mac?
After installing, open File → Quality Workbench, choose a window, display or local video, start with 2× frame generation, then press Start enhancement. Capturing a window or display needs Screen Recording permission; local video playback does not.
Does selecting a multiplier guarantee 120 fps?
A multiplier is a requested processing mode, not a guarantee of displayed frame rate. The engine, source cadence, resolution and display refresh rate affect the result. A 60 Hz display cannot present 120 distinct frames per second. Check the FPS overlay and the picture you actually see.
What is the difference between frame generation and upscaling?
Frame generation creates in-between pictures for more continuous motion; upscaling enlarges pictures to a higher resolution. They can be enabled separately. Artifacts or changes in detail can occur, so compare at equal output sizes.
Mac video guides
Choose a source and engine, then check the frame rate actually displayed.
How to interpolate video on a Mac (Chinese)
System requirements, window and local-file setup, and why a 4× setting does not guarantee 120 fps.
Frame generation vs. upscaling (Chinese)
One changes motion continuity; the other changes picture dimensions. Learn when to use each or both.
Built in the open
OpenDuckFrame is free and MIT licensed. A star helps more people find it.
Star on GitHub