Changer la vitesse d’une vidéo
Accélérer ou ralentir une vidéo
Fonctionne dans votre navigateur · Aucun envoi
L’outil et les instructions de cette page sont en anglais pour le moment. Il fonctionne de la même façon : tout se passe dans votre navigateur.
Drag & drop a video here
or
MP4, MOV, M4V, WebM, MKV or MPEG-TS
Your files stay on your device. Nothing is uploaded.
Votre navigateur est trop ancien pour cet outil. Mettez-le à jour, ou utilisez une version récente de Chrome, Edge, Firefox ou Safari.
- Rien ne quitte votre appareil
- Aucune limite de taille imposée par un serveur
- Sans inscription, sans filigrane
- Gratuit
How to change the speed of a video
- Choose your video.
- Pick a speed from 0.25× to 4× (or type your own) and what happens to the sound.
- Press the button and download the video.
The sound
- Keep the normal pitch: voices stay natural at any speed (the sound is time-stretched).
- Higher or lower with the speed: like playing a tape faster or slower.
- Remove the sound: for silent time-lapses.
Good to know
- Slow motion shows each frame longer; it doesn't invent frames in between, so very slow speeds can look choppy.
- Fast videos are kept at no more than 60 frames per second, so they play smoothly everywhere.
- It uses your browser's built-in video technology: best in current Chrome and Edge, and recent Safari and Firefox versions.
Your video stays on your device
Everything happens in your browser. Your video is never uploaded, and this site's security policy blocks the page from sending files anywhere.
Questions fréquentes
Can I speed up only part of a video?
Not in one step. Cut the part out with the Video Cutter, change its speed here, and join the parts with Merge Videos.
Is my video uploaded?
No. It is processed in your browser and never sent anywhere.