A Mac video editor where the agent does the editing
OpenNolan is a native Mac app for vertical short-form. Below is what that means in practice, depending on what you came looking for.
Most video tools sell you a better timeline. OpenNolan is built on the opposite bet: that the person who needs the video is not the person who should have to cut it. You bring the clips, an AI agent assembles the whole vertical reel, and the timeline is there only for the edits your taste insists on.
It runs natively on macOS, keeps your files on your machine, and uses your own AI provider key — no subscription, no account, and the source is open. Below you'll find both what the app is, and three free browser tools that run entirely on your machine — a caption safe-zone previewer, a reel pacing analyzer, and the short-form spec dataset.
Mac video editor
Native macOS, local-first, and an AI agent that assembles the whole vertical reel.
Read more →AI reels generator
Clips in, finished vertical reel out — captions, B-roll, music and cuts included.
Read more →Caption safe-zone checker
Drop in a video and see which parts of the frame Reels, TikTok and Shorts cover with their own UI.
Read more →Reel pacing analyzer
Drop in a finished video and get cut cadence, shot lengths, hook strength and dead air, scored locally.
Read more →Short-form spec dataset
Resolution, bitrate, duration, codecs and caption safe zones for Reels, TikTok and Shorts — with sources.
Read more →