Kinovea is a video annotation tool designed for sport analysis.
It features utilities to capture, slow down, compare, annotate, track and measure motion in videos. (Learn more).
Kinovea is completely free and open source.
We strive to build a software simple enough for use in classroom and powerful enough for olympic training.
Enrich the video by adding arrows, descriptions and other content to key positions.
Observe two videos side by side and synchronize them on a common event.
Measure angles, distances and times manually or use semi-automated tracking to follow the trajectories of points on the video.
Export your analysis to spreadsheet formats for scientific study and further processing. Create custom tools to suit specific needs.
Check our these cool projects:
A message blinked in the corner of her screen—an incoming chat in a ghost of a client she barely remembered. She ignored it. The room tightened around her. At 79% the bar stalled. Then crept to 79.1%. The pause stretched like a breath held too long.
Mara opened the host's comments. One user wrote, "Leech full, seeders gone. Try again at 3AM." Another wrote, "Mirror found: PM me." In the old days, people would meet behind pseudonyms and share caches of everything—the barter of goodwill. Now, everything had become a transaction: seed or leech, upload or download, credit or ban. hitfile leech full
"Hitfile Leech Full"
The opening credit crawled across the screen, still grainy and a little washed. The theme swelled, and with it came the ache of being younger—the quick, reckless faith that everything would be there forever. She smiled, not because the show was perfect but because it existed, because the leeching had worked and a small thing had been salvaged. A message blinked in the corner of her
At the end of the episode, a note scrolled beneath the last frame: "Seed if you can. Pay it forward." On the host's page, the upload had a comment count that hummed with other lives. Mara enabled seeding. The upload speed creaked but kept moving, a barter reconstituted in code. At 79% the bar stalled
"Hitfile" had been recommended in a thread: a dusty file-hosting relic where people said you could leech older media without the glint of corporate watchers. Somewhere on its servers, someone had uploaded a box-set of an old sci-fi mini-series Mara had watched as a kid and then lost to time. She didn’t bother with legal arguments—this was nostalgia, a small, private rescue mission.
Mara thought about the boxes in her closet—the props, the postcards, the memorabilia from a childhood that had sat between couch cushions and in the backs of drawers. Memories, she realized, were like files on a server: duplicated, compressed, corrupted sometimes. People sold their pasts back to the net with tags and comments. She felt ridiculous chasing pixels of a life she could summon from her own memory if she wanted to, but there was something sacrosanct about seeing the opening title again, hearing the old theme swell.
The following companies have donated hardware to help Kinovea support more devices
