Video Resizer
Use this to repurpose a YouTube video for TikTok by going vertical, fit a widescreen film into an Instagram square, or modernise old 4:3 footage to 16:9.
Free to download, install and update. No signup; all 76 tools are free within daily limits, Pro only lifts the limits.
What it does
Use this to repurpose a YouTube video for TikTok by going vertical, fit a widescreen film into an Instagram square, or modernise old 4:3 footage to 16:9.
How to use it
- 1Drag video files into the list.
- 2Pick a Target Aspect Ratio (9:16 for TikTok, 1:1 for Instagram square, etc).
- 3Pick a Fit Strategy: Crop, Pad or Stretch.
- 4Set the Max Resolution (1080p recommended).
- 5Pick an Output Format.
- 6Click Run.
Use cases
YouTube video repurposed for TikTok
Add the video, 9:16, Crop, 1080p, MP4, run. Comes out vertical.
Widescreen film to Instagram square
Add the film, 1:1, Pad (with black bars), 1080p, run.
Modernise old 4:3 videos
Add the videos, 16:9, Pad, run.
Cinematic banner
Add the video, 21:9, Crop, run.
Frequently asked questions
Is Video Resizer free?
Yes. Downloading, installing and updating BulkPro is free and requires no signup. All 76 tools work for free within daily usage limits; Pro plans only lift the daily limits of the modules you pick.
Local processing
Runs on your CPU/GPU. No file leaves your machine.
Batch ready
Process dozens or thousands of files in one run.
Part of BulkPro
Bundled with 76 tools across 7 modules: one install, one app.
Full UI reference, step-by-step workflows, edge cases
Every input, button, and behavior documented for advanced users.