Resize video files
Upload a video file and scale it to a new resolution. The aspect ratio is preserved, and the video is re-encoded, so longer files take a while.
Resolution
Upload a video file and scale it to a new resolution. The aspect ratio is preserved, and the video is re-encoded, so longer files take a while.
Set a width, height, or both, and the tool re-encodes your video at the new dimensions. Specify one side and the other follows the aspect ratio automatically; specify both and choose how the frame should fit.
Downscaling 4K to 1080p or 720p slashes file size with modest visual cost on most screens. Platforms and embeds often want specific dimensions. And email or chat limits frequently fall to a resolution drop alone, before any bitrate compromise.
Detail beyond the new resolution is gone by definition, but a good downscale looks crisp at its size; viewers on phones rarely miss the source pixels.
You can set larger dimensions, but scaling cannot create detail; output looks like the source stretched. Real upscaling needs AI enhancement.
Yes, resizing runs in your browser without uploads.