Make Instagram Reels from a long video

Why make Reels from long videos

Instagram Reels reach people who are not following you yet, and a long video you have already made is the cheapest source of good Reels. A podcast, a talk, a tutorial or an interview usually contains a handful of moments that work on their own: a clear tip, a strong opinion, a story with an ending. Cutting them out by hand means rewatching the whole video, cropping each moment to vertical and captioning it. A Reels maker should do that work for you

shitShorts takes the long video, finds the moments, and returns vertical clips with captions that you review and post. Each clip is an editable project, so you keep control over what goes out

How the clips are picked

The video is transcribed with Whisper at word level, so cuts land between words. A language model scores overlapping windows for hook, payoff, pacing and whether each one makes sense without the rest of the video. A second critic pass tightens the start and end of the best candidates and drops the ones that rely on context. Reactions, laughter and audio peaks in the footage raise a moment's score

Reels audiences tend to reward clips that teach or show something specific, so moments with a clear takeaway often rank well. You choose how many clips and how long, and get them in ranked order with the reasons each was picked

Framing for a vertical feed

Most long videos are landscape. A centre crop to 9:16 often cuts out the person who is speaking. The clipper tracks faces and matches voices to faces, so the frame stays on whoever is talking and moves when the speaker changes. For two people in one moment it switches to stacked split tiles; for sports it follows the action. You can adjust the crop on the timeline for any shot

Captions and the Instagram safe area

Many people watch Reels with the sound off, so captions carry the clip. They are generated from the word-level transcript, animated word by word and placed inside the safe area: above the caption and audio text at the bottom of a Reel and away from the like, comment and share buttons on the right. Pick a caption theme for the batch, fix any word on the timeline, and apply your brand kit so every Reel looks consistent

Length, covers and posting rhythm

Most Reels cut from long videos work best between about 20 and 60 seconds, delivering one idea cleanly. Instagram allows longer Reels than it used to, but a clip that lands its point and ends tends to be watched through and shared more. You set the target length before the run, and the critic pass trims trailing chatter after the payoff

Pick a cover frame with a clear face or a readable hook line, because the profile grid shows a cropped preview of each Reel. Then post on a steady rhythm: one long video can give you a Reel every day or two for a week, which is easier to sustain than a burst of posts followed by silence

If the same clip goes to TikTok and YouTube Shorts as well, keep the video identical and change only the post caption and hashtags for each network

Good sources for Reels

Podcasts and interviews, coaching and educational videos, webinars and talks, product walk-throughs with a presenter on camera, vlogs and sports footage. Footage with a visible speaker gives the best framing. Audio-only content has no faces to track; for that, a captioned clip with a motion background from the music and captions flow is a better fit

Only clip videos you own or have permission to reuse

Posting and pricing

Export each Reel as an MP4, or schedule it to Instagram Reels from the calendar along with Facebook Reels, TikTok, YouTube Shorts and the rest, each with its own caption and hashtags

The free plan gives 300 credits a month, about 15 clips at 720p with a small watermark; the first 3 clip exports are free, then 10 credits each. The Clipper plan is $10 a month for about 50 clips at 1080p with no watermark and 300 clip exports a month. Creator ($19) and Pro ($49) add more credits and the rest of the studio