S-Roll is a fully local agentic harness for video understanding. Open a podcast, gameplay recording, interview, or talk and describe the moment you want. S-Roll finds the footage, creates clips, suggests highlights, tracks subjects, and provides an editor for trimming, reframing, captions, titles, and export. All AI processing runs on your Mac, so videos, transcripts, and chats stay there. Free on the Mac App Store with no watermark.

Hey Product Hunt, I’m Ritik. Today I’m introducing S-Roll, an agentic harness for video understanding that turns long videos into clips through natural-language prompts. Long videos are full of valuable moments, but finding them still means scrubbing through timelines or uploading entire recordings to the cloud. I built S-Roll to replace that workflow with a conversation. Open a video and describe what you are looking for, such as “Find the KO clip” or “Find where they discuss AI safety.” S-Roll understands the recording, finds the relevant moments, and creates clips for review. From there, it can track the subject, reframe the shot, generate captions, and prepare the final export. The entire system runs locally on Apple silicon. Videos, transcripts, and chats stay on the user’s Mac. S-Roll is the first step toward Saliency, an operating system for video understanding that will own both the models and the agentic harness around them. S-Roll is available free on the Mac App Store with no watermarks. I would love feedback on what works, what does not, and which video workflows should come next.

I'm on OpusClip for this today (not a regular user) but always always looking for new tools to try. What are three reasons I'd switch?

@justin_rockmore 1. Unlimited usage so no 150 mins limit with chat to clip feature 2. Completely free no subscription needed 3. No watermark for exported clips 4. Your data never leaves your PC, after signing in, you can even switch off wifi and use xD Please give it a try :) Please give it a try :)

@ai_ritik Definitely - downloaded it and gave it a shot. Enjoying my tests so far. Only thing I'd want is a little more customization, and I know it's early. Anything in the plans there?

I'm on OpusClip for this today (not a regular user) but always always looking for new tools to try. What are three reasons I'd switch?

@ai_ritik Definitely - downloaded it and gave it a shot. Enjoying my tests so far. Only thing I'd want is a little more customization, and I know it's early. Anything in the plans there?

S-Roll

An agentic harness that turns long videos into clips

An agentic harness that turns long videos into clips