By Team Hypomnema · Updated October 19, 2026
Crop and resize video with live framing, focal positioning and social presets.
Prepare
Add a video and choose a source time range.
Adjust and review
Choose an aspect ratio and output size. Adjust horizontal/vertical focus and zoom; preview the live framing.
Save your result
Prepare MP4, review the actual encoded crop and download.
Limits and compatibility
Files are processed on your device and are not uploaded. Use a current browser; memory-constrained devices may need smaller inputs. Cancellation stops processing. Originals remain unchanged. The pinned FFmpeg WebAssembly engine downloads about 31 MB from jsDelivr on first use. Video encoding can take several minutes on mobile. MP4 uses H.264/AAC and strips source metadata. Inputs are capped at 100 MB combined and 10 minutes per media file. DRM media is unsupported. Output: up to 10 minutes and a 1920-pixel longest edge. Cropping removes image area. Fill crops to the chosen ratio; Fit retains the whole frame with white padding. Live framing previews are visual guides; review the encoded export.
Try the workflow
Keep your original documents and review the output. You can also browse all guides or contact Team Hypomnema.