Upload a video file and re-time it to a new frames per second. Changing the frame rate re-encodes the video, so longer files take a while.
Your file never leaves your device. All processing happens right in your browser, and nothing is uploaded to a server.
The tool re-encodes your video at the frame rate you choose. Going down (60 to 30 fps) drops frames evenly and is visually safe. Going up duplicates frames to satisfy a spec without inventing motion, so it will not add smoothness on its own.
Editors mixing 30 and 60 fps clips on one timeline invite stutter, platform specs pin exact rates for broadcast deliverables, and some players handle unusual rates poorly. Converting once up front keeps the pipeline smooth.