Scale video resolution and change dimensions.
Change video resolution and pixel dimensions quickly. Use preset resolutions for Full HD, HD, and mobile vertical videos or specify custom width and height with automatic aspect ratio preservation.
How to Use Video Resizer
- Select or drag and drop your file(s) into the Video Resizer workspace.
- Adjust the custom parameters, formats, or options to your requirements.
- Preview the processed output in real time and download the result instantly to your device.
Key Capabilities & Features
- 100% Client-Side Processing: Your data never leaves your computer or mobile device.
- Fast & Instant: Powered by modern WebAssembly and HTML5 browser APIs without upload delays.
- No Signups & No Watermarks: Completely free and unlimited for personal and professional use.
Privacy & Security Guarantee
At Toolbo, privacy is built directly into the software architecture. Video Resizer processes all inputs directly in client-side browser memory. There is no server upload, no remote file caching, and zero tracking of your document or media contents.
Frequently Asked Questions
- Will resizing change my video quality?
- Downscaling reduces file size and pixel dimensions smoothly. Upscaling increases frame dimensions while preserving the original image data.
- Can I lock the aspect ratio?
- Yes. By default, the aspect ratio is locked so your video never gets stretched or distorted.
Related Online Tools
- Video Cropper — Crop video dimensions for TikTok, Instagram, and YouTube.
- Video Compressor — Reduce video file size without uploading to any server.
- Video Rotator — Rotate videos 90, 180, or 270 degrees clockwise.