Tools
Video Speed Ramp
Slow the moments that matter and speed through the rest. Drop a video, add and drag points on the curve, and watch the output length update live. Export a constant 30fps MP4 that any player can play.
Output format
Video quality
Audio bitrate 128 kbps
Audio sample rate
Three steps to Video Speed Ramp
- 1
Drop your file onto the page
Open any converter page and drop in your video, image, audio or document. Multiple files at once are fine.
- 2
Adjust options if you like
Add and drag points: vertical axis is speed (1/8×–16×), horizontal is source time. Lower is slower, higher is faster. Estimated length updates as you edit.
- 3
Converted — download instantly
Results in seconds to minutes with live progress. Files download directly — no queues, no extraction links.
What this tool does
- Editable curve: add, delete, drag — smooth interpolation between points
- From 16× to 1/8×, with live duration and frame count
- Constant 30fps MP4; audio follows the same curve with pitch preserved
FAQ
Does audio speed up too? Does pitch change?
Audio follows the same curve with pitch preserved (time-stretch). Slow motion does not go muddy; fast motion does not go squeaky. Extreme speeds may sound a little grainy.
Why is the output a fraction of a second off the estimate?
Output is whole frames at 30fps, so the last frame is rounded. Error is usually under 1/30 of a second.
How long a clip can I ramp?
Browser memory caps output at about 30 minutes (27,000 frames at 30fps). For longer or slower combinations, work in sections.