Independent players
Load and control two media items separately, including simultaneous playback when the show needs it.
A‑B Roll 1.9.7 · macOS
Dual-deck NDI playback for Mac.
Free your encoder from playback.
Cue videos, still images and incoming NDI sources in two independent players. Send each player as its own NDI output to your production system.
Requires macOS 14 Sonoma or later. Compatible with Apple silicon and 64-bit Intel Macs. A wired Gigabit network is recommended for NDI production workflows.
A clearer live-production role
Let the encoder encode.
Your main production app already handles scenes, switching, streaming and recording. Loading every bumper, package and holding loop into that same workspace adds another job at the point where attention is scarce.
A‑B Roll gives playback its own Mac-native surface and sends two named NDI outputs into the rest of the production.
Two decks, one prepared rundown
Ready on A. Next on B.
Move through a playlist without replacing the media that is already playing.
PLAYLISTOpening film AGuest package BHolding loop
PLAYER AOpening film▶NDI Output A · Active
PLAYER BGuest packageⅡNDI Output B · Active
Operator controls
Use playlist selection, load-to-deck commands, scrubbing, volume, monitoring and per-player loop controls.
Persistent outputs
Name and enable each NDI output so the receiving production app can treat A and B as distinct sources.
How it fits
Playback in. NDI out. Your production stays in charge.
MEDIA INVideo files
Still images
NDI sources
→Still images
NDI sources
A-B ROLLPlayer A
Player B
→Player B
NDI OUTEncoder
Switcher
Monitor
Switcher
Monitor
A‑B Roll sends and receives NDI. It can feed software that receives NDI sources, including common OBS, Wirecast and vMix workflows. Those products are independent and do not endorse A‑B Roll.
Useful when the cue matters
Built for the media around a live show.
Sports and events
Hold sponsor reels, opens, packages and loops in a dedicated playback rundown.
Conferences and corporate
Keep session videos and last-minute client media away from the primary encoder workspace.
Churches and education
Prepare repeatable media cues on a Mac and hand separate outputs to the main production.
Podcasts and livestreams
Roll cold opens, prerecorded segments, bumpers and intermission media without turning the encoder into a file bin.
Before you download
Requirements and expectations
VERSION1.9.7 (build 10020)
MACmacOS 14 Sonoma or later
PROCESSORApple silicon or 64-bit Intel
NETWORKWired Gigabit recommended for NDI
NDINDI 6 embedded; no separate runtime
INSTALLApple-notarized universal DMG
A‑B Roll is a universal arm64 and x86_64 app. macOS 13 Ventura and earlier are not supported. NDI playback requires a compatible receiver such as OBS, Wirecast, vMix or NDI Monitor, normally on the same network; vMix can receive A‑B Roll’s NDI output on a separate compatible production computer. Internet access is required for download, licence activation and update checks. No formal minimum RAM, GPU or free-storage requirement has been published.
Try the complete workflow
Start free. Upgrade when it earns a place in the show.
Free
$0 USD
Test A‑B Roll with up to five playlist items, including media files, still images and NDI sources. Free NDI output includes an A‑B Roll watermark.
Download Free (.dmg)The direct download is an Apple-notarized disk image. Anonymous usage metrics are enabled by default and can be disabled in Settings. Privacy details.
A‑B Roll Pro
$69 USD
Pro removes the item cap and watermark, giving you unlimited playlist items and unwatermarked NDI output.
Buy A‑B Roll Pro$69 USD · One-time purchase · Activate on up to two Macs. Stripe Checkout returns to A‑B Roll for activation. For activation or Mac-replacement help, contact license support.
Common questions
A‑B Roll FAQ
What does A‑B Roll do?
It cues local media, still images and incoming NDI sources in two independent players and can send each player as its own NDI output.
Does it replace my encoder or switcher?
No. A‑B Roll is a playback tool. A separate NDI-capable receiver, encoder or production system takes its outputs.
What Mac does it require?
A‑B Roll 1.9.7 requires macOS 14 Sonoma or later and supports Apple silicon and 64-bit Intel Macs. macOS 13 Ventura and earlier are not supported. A wired Gigabit network is recommended for dependable live NDI video and audio.
Do I need to install NDI Tools?
No. NDI 6 support is embedded in A‑B Roll, so no separate NDI runtime installation is required. The production workflow still needs a compatible NDI receiver such as OBS, Wirecast, vMix or NDI Monitor, normally on the same network.
What is the difference between Free and Pro?
A‑B Roll Free supports up to five playlist items, including media files, still images and NDI sources, and adds an A‑B Roll watermark to the NDI output signal. A‑B Roll Pro supports unlimited playlist items and removes the watermark. It costs $69 USD as a one-time purchase and can be activated on up to two Macs.
A‑B Roll 1.9.7
Give playback its own deck.
Download A‑B Roll Free for macOS 14 Sonoma or later.
Download A‑B Roll Free (.dmg)