How to convert landscape video to a youtube shorts cut
- Step 1Check where your subject sits in the 16:9 frame — The crop is centered, so a subject in the middle survives and a subject in the left/right third gets clipped. If your shot is off-center, plan to use auto-reframe (content-aware) or video-cropper (manual region) instead of — or before — this formatter.
- Step 2Pick your 60 seconds from the landscape clip — The formatter keeps the first minute. For a long tutorial or vlog, cut your highlight first with lossless-trimmer so the formatter's
-t 60window lands on the right moment. - Step 3Drop the 16:9 file onto the tool — MP4, MOV, MKV, WebM, AVI, M4V, or TS. The clip loads into the in-browser FFmpeg.wasm filesystem — no upload. Size ceiling is 1 GB (Free) up to 100 GB (Pro-media/Developer).
- Step 4Run the conversion — JAD probes the source, finds the centered 9:16 crop (full height, width = height × 9/16, rounded even), scales to 1080×1920 with Lanczos, applies
-t 60, and encodes H.264 + AAC. - Step 5Download and eyeball the framing — Open the 1080×1920 MP4 and confirm the center crop kept everything you needed. Edges of a wide shot are gone by design — if a sign, slate, or co-host got cut, re-do with the cropper to pick the exact column.
- Step 6Upload to YouTube — The output meets the Shorts spec (9:16, ≤60s, H.264/AAC MP4), so upload directly. Add the #Shorts hint in the title/description if you want to nudge classification, though YouTube detects vertical ≤60s automatically.
16:9 sources and what the center crop keeps
The crop takes the full source height and a centered column of width = height × 9/16 (rounded to even). The numbers below are exact for common 16:9 resolutions.
| 16:9 source | Centered crop kept | Width discarded | Output |
|---|---|---|---|
| 1280×720 | 405×720 center column | ~68% (437px left + right) | 1080×1920 |
| 1920×1080 | 607×1080 center column | ~68% (1313px) | 1080×1920 |
| 2560×1440 | 810×1440 center column | ~68% | 1080×1920 |
| 3840×2160 (4K) | 1216×2160 center column | ~68% | 1080×1920 (downscale) |
| 21:9 ultrawide (2560×1080) | 608×1080 center column | ~76% (even more lost) | 1080×1920 |
Landscape-to-Shorts: this tool vs. the alternatives
Pick the right JAD video tool for how your subject is framed. All run in-browser with no upload.
| If your landscape footage… | Use | Why |
|---|---|---|
| Has the subject centered | youtube-shorts-formatter (this tool) | Fixed center crop is exactly right; one pass to spec |
| Has the subject off to one side | video-cropper | Visual region picker lets you choose the exact 9:16 column |
| Has a moving subject (a walking speaker) | auto-reframe | Content-aware tracking follows the subject across the frame |
| Has the highlight in the middle of a long clip | lossless-trimmer then this tool | Cut the 60s first so the formatter's first-minute rule lands right |
| Needs to stay 16:9 for X (Twitter) | twitter-x-formatter | Keeps 16:9 with a 2:20 cap instead of cropping vertical |
Cookbook
Worked 16:9 → 9:16 conversions with the exact center-crop math from the filter chain. Subject placement decides whether the center crop works.
Centered talking-head 16:9 → Short (works perfectly)
A presenter sitting in the middle of a 1920×1080 frame. The center crop keeps them whole and discards the empty desk on either side.
Source: talk.mp4 1920×1080 90s (subject centered) Crop: 607×1080 from x=(1920-607)/2≈656, y=0 Scale: 607×1080 → 1080×1920 (lanczos) Trim: -t 60 (keeps first minute) Output: 1080×1920 H.264 CRF20 / AAC — subject framed cleanly
Two presenters side by side (one gets cropped)
A 16:9 interview with hosts at the left and right thirds. The center crop slices both edges — you keep the gap between them, not the people. This is the classic case where the formatter is the wrong tool alone.
Source: interview.mp4 1920×1080 (host L + host R) Center crop x≈656 keeps the middle 607px — mostly the gap Better: video-cropper → pick a 607×1080 column over ONE host (run twice for two separate Shorts), then this tool re-scales
4K landscape drone B-roll → Short
A 3840×2160 wide aerial. The center 1216×2160 column is kept and downscaled to 1080×1920. Great for B-roll because the scene is usually full-frame with no single off-center subject.
Source: aerial.mov 3840×2160 HEVC 2m10s Crop: 1216×2160 from x=(3840-1216)/2=1312, y=0 Scale: 1216×2160 → 1080×1920 (lanczos downscale) Trim: -t 60 Output: 1080×1920 H.264 MP4 (encode is slower — 4K decode)
Ultrawide 21:9 gameplay capture → Short
A 2560×1080 ultrawide loses about three-quarters of its width to the 9:16 crop. Keep your HUD/crosshair centered or this will clip the action.
Source: gameplay.mp4 2560×1080 21:9 Crop: 608×1080 from x=(2560-608)/2=976, y=0 Scale: 608×1080 → 1080×1920 Trim: -t 60 Note: 76% of width discarded — center your action
Long landscape lecture, highlight at 12:00
The formatter keeps minute one, so a mid-lecture highlight must be cut first. Two-step it: lossless trim, then format.
Step 1 lossless-trimmer: cut 11:30–12:30 → clip.mp4 (-c copy, instant) Step 2 youtube-shorts-formatter: clip.mp4 → 1080×1920, -t 60 Result the 12:00 highlight, centered-cropped, 60s Short
Edge cases and what actually happens
Subject is in the left or right third of the landscape frame
Cropped outThe center crop only keeps the middle ~32% of a 16:9 width. A subject framed to one side is sliced off entirely. Use video-cropper to pick the exact column, or auto-reframe for automatic subject tracking.
Two-shot interview — both people at the edges
Cropped outA side-by-side two-shot loses both subjects to the center crop, keeping the empty middle. Crop one subject at a time with video-cropper to make two Shorts, or reframe with auto-reframe.
Lower-third captions or a watermark at the bottom corner
Cropped out / Preserved (depends on position)Vertical center crops keep the full height, so bottom captions survive — but a watermark in a bottom-left/right corner is in the discarded width and disappears. To remove a corner watermark deliberately, that's actually handy; to keep edge text, re-position it upstream.
Highlight is past the first 60 seconds
By design-t 60 keeps only the opening minute. For a long landscape recording, pre-cut the highlight with lossless-trimmer so the first 60 seconds is the part you want.
Source already has pillarbox bars (4:3 inside 16:9)
PreservedThe formatter doesn't detect or strip existing bars — it crops geometrically, so bars are treated as picture. Remove them first using the cropper (remove black bars), then format.
Ultrawide (21:9 / 32:9) source
Cropped outThe wider the source, the more the center crop discards — a 21:9 clip loses ~76% of its width, a 32:9 even more. Only a centered subject survives. Consider auto-reframe or a manual crop for ultrawide footage.
Output looks soft after a big downscale
ExpectedCropping a small region of a 720p source up to 1080×1920 (e.g. a 405px-wide column scaled to 1080) is an upscale and can soften detail. Lanczos minimises it, but starting from a higher-resolution master (1080p or 4K) gives a sharper Short.
Source frame rate is 50/60 fps
PassthroughNo fps conversion is applied, so high-frame-rate landscape footage stays high-frame-rate — fine for Shorts, which accepts up to 60 fps. The file is re-encoded with libx264 to a constant timeline.
File is over your tier's size limit
RejectedFree 1 GB, Pro 10 GB, Pro-media/Developer 100 GB per file. Large 4K landscape masters can exceed the Free ceiling — trim with lossless-trimmer first to shrink the input, or upgrade the tier.
You wanted to keep the whole landscape frame with bars
Wrong toolThis formatter crops to fill 9:16 and never pads to letterbox. If you must keep the full 16:9 picture, upload it as a regular landscape video (not a Short) or use twitter-x-formatter which keeps 16:9 for X.
Frequently asked questions
How does it convert 16:9 to 9:16 — crop or stretch?
It crops, never stretches. It keeps the full source height and a centered column whose width is height × 9/16, then scales that to 1080×1920. There's no distortion, but you lose roughly two-thirds of a 16:9 frame's width.
Can I choose which side of the landscape frame to keep?
Not in this tool — the crop is always centered. To keep a specific region (left, right, or a custom column), use video-cropper, which has a visual region picker, before or instead of this formatter.
My subject is off-center. Will this still work?
It will run, but a subject in the side third gets cropped out. For off-center or moving subjects use auto-reframe (tracks the subject) or video-cropper (manual region) to get the right framing.
What output resolution do I get from a 16:9 source?
Always 1080×1920, regardless of whether your source was 720p, 1080p, or 4K. Lower-resolution sources are upscaled (which can soften), higher-resolution sources are downscaled (sharper).
Does it trim my long landscape video?
Yes — it keeps the first 60 seconds via -t 60. For a long vlog or lecture, cut your chosen 60-second segment first with lossless-trimmer so the right moment lands at the start.
What input formats can I convert?
MP4, MOV, MKV, WebM, AVI, M4V, and TS. Output is MP4 (H.264/AAC, 1080×1920). Decoding happens in-browser via FFmpeg.wasm.
Is my landscape master uploaded to a server?
No. The conversion runs entirely in your browser through FFmpeg compiled to WebAssembly. Your 16:9 source never leaves your device.
Will black bars appear on my Short?
No — the tool crops to fill the 9:16 frame, so there are no bars on the output. (If your *source* already had bars, those get cropped as picture; strip them with the cropper first.)
Why does so much of my widescreen frame disappear?
9:16 is far narrower than 16:9. A 1920px-wide frame keeps only the center ~607px to make 9:16, so ~68% of the width is discarded. This is inherent to vertical conversion, not a tool limitation — the trade-off is keeping the picture undistorted.
Can I keep the full landscape frame by adding bars instead?
This formatter doesn't pad/letterbox — it only crops. There's no blur-fill option either. If preserving the whole 16:9 frame matters more than filling vertical, upload it as a standard video or format for X with twitter-x-formatter.
How fast is the conversion?
It's a real re-encode (decode every frame, crop, scale, encode H.264), so it scales with clip length and resolution. A 60-second 1080p source is quick; a 4K source is noticeably slower because every 4K pixel is decoded in WASM. There's no upload wait, so wall-clock time is just the encode.
Will the converted Short look better than just uploading the landscape clip?
For Shorts, yes — a native 1080×1920 file fills the screen instead of pillarboxing into a thin strip, and the H.264 CRF 20 encode gives YouTube clean source to re-process. The only caveat is the center crop must contain your subject.
Privacy first
Every JAD Video tool runs entirely in your browser via WebCodecs and FFmpeg (WebAssembly). Your video files never leave your device — verified by zero outbound network requests during processing.