Change Video Speed Online
Speed up or slow down a video from 0.25× to 4×. Preview the pacing, check the estimated new duration, and download a newly processed file.
Adjust Video Speed with an Online Editor
Use presets or choose a custom value between 0.25× and 4×. Values below 1× make the complete video longer; values above 1× make it shorter.
The preview helps you judge pacing before processing. For more natural slow motion, the source still needs enough captured frames; slowing ordinary footage does not create missing motion detail.
How to Change Video Speed Online
Changing speed retimes the whole uploaded video. For example, a 60-second source becomes approximately 30 seconds at 2× or 120 seconds at 0.5×. The displayed estimate can differ slightly from the final encoded file.
Step-by-step
- Upload or drag and drop a video file.
- Select a preset or enter a value from 0.25× to 4×.
- Play the preview and check the estimated duration.
- Click Change Speed to process the complete video.
- Download and review the result, including its audio.
What the values mean
- 0.25×–0.75×: slower playback and a longer result.
- 1×: original pacing and estimated duration.
- 1.25×–2×: faster pacing for tutorials, demos, or long actions.
- Above 2×: pronounced fast motion; inspect readability and audio carefully.
When to Speed Up or Slow Down Video
Speed up repetitive actions, setup footage, screen recordings, travel sequences, or process videos when the complete action matters but the original pacing is too slow. Check that spoken instructions remain easy to understand at the selected speed.
Slow down sports, demonstrations, reactions, or brief movements that viewers need more time to inspect. The result will look smoother when the source was recorded at a sufficiently high frame rate.
Popular use cases
- Condense tutorials, recordings, and repetitive processes.
- Highlight movement in sports or product demonstrations.
- Create fast-motion or slow-motion storytelling beats.
- Match the pacing of neighboring clips before editing.
- Adjust the approximate duration for a planned sequence.
Speed is not the same as trimming
Speed change keeps the complete action but retimes it. Trim Video removes time from the beginning or end, while the full editor is better when only one section needs a different speed.
Video Quality, Frame Rate, and Audio
Retime processing creates a new file, so file size or visual quality can change. Extreme slowdowns may show repeated or less-fluid frames when the source frame rate is low. Speeding up can make text, cuts, and camera movement difficult to follow.
Use the browser preview to evaluate pacing, then listen to the processed download before publishing. If the voice, music, or sound effect no longer suits the new timing, continue in the full editor to replace, mute, or rearrange audio.
Change Speed, Trim, or Loop?
Change Video Speed
Retime the complete uploaded video from 0.25× to 4×.
Trim Video
Keep a shorter time range without changing how fast the action plays.
Loop Video
Repeat a clip a chosen number of times instead of changing its speed.
Supported Video Formats
The uploader accepts common formats including MP4, MOV, AVI, WebM, and MKV. Browser preview support can vary by codec, so some files may need preparation before preview.
Need to Edit Your Video?
Apply different timing to selected sections, replace or mute audio, trim the result, combine clips, or add text and subtitles.
Learn More About Changing Video Speed
Frequently Asked Questions
Common questions about changing video speed.
Can I change video speed online for free?
Yes. You can upload a video, preview a speed from 0.25× to 4×, and create a processed result without installing desktop software.
Can I both speed up and slow down a video?
Yes. Choose a value below 1× to slow down the complete video or above 1× to speed it up.
Will changing speed affect video quality?
Processing can change file size or visual quality slightly. Strong slowdowns may also look less smooth when the source does not contain enough frames.
What formats are supported?
The uploader accepts common formats including MP4, MOV, AVI, WebM, and MKV. Browser preview support can vary by codec.
What speed options are available?
You can use presets such as 0.5×, 0.75×, 1×, 1.25×, 1.5×, and 2×, or enter a custom value from 0.25× to 4×.
How do I calculate the new video duration?
Divide the original duration by the selected speed. A 60-second video is about 30 seconds at 2× and about 120 seconds at 0.5×. Encoding can cause a small difference.
Can I change the speed of only one part?
The standalone tool retimes the complete uploaded video. Use the full editor when separate sections need different speeds.