AnyTool
Your files never leave your device. All processing happens locally in your browser.

How do I convert a horizontal video into a vertical 9:16 Short without uploading it?

Open AnyTool's YouTube to Shorts Repurposer, drop in a horizontal video, and choose smart-crop (active-speaker face tracking), center-crop or blur-pad to reframe it to vertical 9:16. You can split it into multiple Shorts, burn in captions, and export real MP4 clips — all in your browser. Nothing is uploaded, and there is no watermark, sign-up or length cap.

  • Reframe to vertical 9:16 (smart-crop, center, or blur-pad)
  • Active-speaker face tracking + optional caption burn-in
  • Split a long video into multiple Shorts, batch export
  • 100% in your browser — no watermark, no upload, no caps

What is

Vertical video reframing

Reframing converts a horizontal (16:9) video to a vertical 9:16 format for Shorts, Reels and TikTok — by cropping (optionally tracking the speaker's face), or fitting the whole frame over a blurred background (blur-pad). A client-side tool reframes and encodes in the browser, so the video is never uploaded.

Video Tools

Related terms

9:16auto-reframeface trackingblur-padShorts

How to Convert a Video to a Vertical Short

Reframe a horizontal video to vertical 9:16 in your browser.

1 minWeb browser
  1. 1

    Add a video

    Drop in a horizontal clip — it stays on your device.

  2. 2

    Reframe

    Pick smart-crop, center-crop or blur-pad, set segments and add captions if you want.

  3. 3

    Export

    Download the 9:16 MP4 clip(s) — nothing is uploaded.

Result: A vertical 9:16 Short

Frequently Asked Questions

No — reframing and encoding run entirely in your browser.

The video never leaves your device, unlike OpusClip, Klap, 2short or AI clip tools which all require cloud upload and watermark free clips.

Yes — smart-crop tracks the active speaker's face to keep them centered.

Face detection runs locally and the crop path is smoothed to avoid jitter; you can also pick center-crop or blur-pad.

Yes — burn in word-level captions and split a long video into several Shorts.

Captions come from a local transcript and all clips export as real MP4 with no watermark or length cap.

Detailed Explanation

Methodology

How the YouTube to Shorts Repurposer Works

AnyTool reframes a horizontal video to vertical 9:16 entirely in the browser. Three modes are offered: smart-crop runs a self-hosted face-detection model to track the active speaker and smooth the crop center; center-crop uses a manual focus slider; and blur-pad fits the whole frame over a blurred background. Frames are drawn onto a canvas and encoded with WebCodecs (H.264) for hardware-accelerated, faster-than-ffmpeg export, with a self-hosted ffmpeg crop+scale fallback. Optional word-level captions come from a local Whisper transcript, and a long video can be split into multiple Shorts and batch-exported.

  • Runs client-side — the video is never uploaded
  • Smart-crop (local face tracking), center-crop, or blur-pad
  • WebCodecs H.264 export with ffmpeg fallback
  • Optional word-level caption burn-in (local Whisper)
  • Multi-segment splitting + batch export
  • No watermark, no sign-up, no length cap
Privacy & Security

Privacy vs Cloud Repurposers

OpusClip, Klap, 2short and AI clip tools upload your video to the cloud, watermark free clips and gate exports behind sign-in. AnyTool reframes and encodes on the device — including face tracking and captions — so the video never leaves the browser, with no watermark and no length cap.

Vertical reframing: AnyTool vs typical tools
CapabilityAnyToolTypical tools
Data handlingIn your browserCloud upload
Face trackingYes (local)Cloud
Blur-pad modeYesSometimes
Watermark / capNoneCommon
CostFree, no signupFree/limited

AnyTool is a privacy-first client-side reframer — reframing and encoding run locally and nothing is uploaded.