--- title: "Video Resizer" description: "Resize videos to any resolution in your browser with presets for YouTube, Instagram, and TikTok. The clip is re-recorded in real time and nothing is uploaded." url: https://findutils.com/media/video-resizer/ category: media --- # Video Resizer Resize videos to any resolution in your browser with presets for YouTube, Instagram, and TikTok. The clip is re-recorded in real time and nothing is uploaded. **Use this tool:** [Video Resizer](https://findutils.com/media/video-resizer/) ## Programmatic access - Browser-only: this tool works on a file, the DOM, or a browser API and has no REST or MCP id. ## Why use our Video Resizer? Our video resizer makes it easy to change video resolution for different purposes. Whether you need to downscale for faster uploads, upscale for presentations, or fit specific platform requirements, our tool handles it all. Choose from common presets like 1080p, 720p, or social media formats, or enter custom dimensions. The aspect ratio lock helps prevent distortion when resizing. All processing happens in your browser: each frame is drawn onto a canvas at the new size and captured by the browser's MediaRecorder. That recorder runs in real time, so a one-minute clip takes about a minute and the result is a WebM file. ## Tips for Better Results - Always keep the aspect ratio locked when downscaling to avoid distortion. Unlock it only when you intentionally need a different shape. - Downscaling from 4K to 1080p produces sharper results than upscaling from 480p to 1080p, because enlarging adds interpolated pixels. - For social media, use the built-in presets instead of guessing dimensions. Platform requirements change, and presets stay current. - If your resized video looks too large in file size, run it through a video compressor afterward to optimize the bitrate. - Resizing records in real time, so a clip takes roughly its own length to process. For videos longer than a few minutes, trim first with the Video Trimmer. ## Frequently Asked Questions ### What resolutions can I resize to? You can choose from presets including 4K (3840x2160), 1080p (1920x1080), 720p (1280x720), 480p (854x480), 360p (640x360), Square (1080x1080), and Instagram Story (1080x1920), or enter any custom width and height. ### Will resizing affect video quality? Yes, and the direction matters. Downscaling typically maintains good visual quality because you are reducing pixel count. Upscaling may introduce softness or artifacts because the browser interpolates new pixels that did not exist in the original footage. ### Can I change the aspect ratio? Yes, disable the aspect ratio lock to resize to any dimensions. Keep in mind that changing the aspect ratio will stretch or squish the image. If you want to crop instead, consider using a dedicated video cropping tool. ### What output format is used? Resized videos are output in WebM format, which offers good compression and is supported by all modern browsers. If you need MP4 or another format, run the output through the Video Format Converter. ### Are my videos uploaded to a server? No. The resizer draws each frame onto a canvas and records it with the browser's MediaRecorder, and your video file never leaves your device. The page loads ad and analytics scripts as most sites do, and they never see your file. ### Is there a file size limit? Yes. The tool accepts files up to 500 MB and rejects anything larger before reading it. Within the cap, time bites before size does: the clip is re-recorded in real time, so a ten-minute video takes about ten minutes. ### What is the best resolution for Instagram Reels and TikTok? Both platforms recommend 1080x1920 pixels (9:16 portrait). Use the Instagram Story preset to match this resolution exactly. Videos uploaded at the correct dimensions avoid platform re-encoding, which preserves quality. ### Can I resize multiple videos at once? No. The tool processes one video at a time. Upload, resize, and download each file individually. For batch operations on many files, desktop software like HandBrake or FFmpeg may be more efficient. ### Does resizing reduce the file size? Yes, usually. Downscaling to a lower resolution reduces file size because fewer pixels means less data. However, the exact reduction depends on the codec, bitrate, and content complexity. For maximum compression, use the Video Compressor after resizing. ### Does the video resizer require a signup? No. The FindUtils Video Resizer is free, with no watermarks, no signup, and no usage limits. It works in any modern browser on desktop or mobile. ## Related Tools - [Video Compressor](https://findutils.com/media/video-compressor/) - [Video Rotator](https://findutils.com/media/video-rotator/) - [Video Trimmer](https://findutils.com/media/video-trimmer/) - [Video Format Converter](https://findutils.com/media/video-format-converter/) - [Video to GIF Converter](https://findutils.com/media/video-to-gif/) - [Image Resizer](https://findutils.com/convert/image-resizer/) - [Social Media Image Resizer](https://findutils.com/convert/social-media-image-resizer/) - [Aspect Ratio Calculator](https://findutils.com/calculate/aspect-ratio-calculator/)