Change Video Speed Free Online

Q: How do I speed up a video online?

Upload your video, select a speed above 1x (like 1.5x or 2x), and download the result. No account or software needed.

Q: How do I create a slow motion video?

Select a speed below 1x — 0.5x is half speed, 0.25x is quarter speed. The lower the value, the slower the output.

Q: Does the audio change speed too?

Yes. Audio tempo and pitch adjust to match the new video speed. At very slow speeds (0.25x) audio quality may degrade — you can always mute it using our Remove Audio tool first.

Q: What speed values can I use?

You can choose from preset values between 0.25x and 4x. Common choices are 0.5x (half speed), 1.5x, 2x, and 4x.

Q: What video formats are supported?

We support MP4, MOV, MKV, AVI, WebM, and most other common video formats. The output is MP4.

Q: What is the file size limit?

You can convert files up to 1GB without an account. Enter your email to unlock up to 2GB, or sign up for a free trial to convert files up to 5GB.

Speed up or slow down videos from 0.25x to 4x

110+ professionals sharing their videos

Drag a Video file here or click to select

File should not exceed 1GB

Max 1GB

2GB with email

3 conversions/day

3GB bandwidth/day

Free, no signup

Start 14-day free trial for 5GB uploads

How to Use This Tool

Upload your video file by dragging it onto the upload area or clicking to browse

Choose your target speed — from 0.25x (slow motion) to 4x (time-lapse)

Click to apply the speed change

Download your modified video

Why Change the Speed of a Video?

Adjusting playback speed is one of the most effective editing techniques: speed up a long tutorial or time-lapse to hold attention, slow down action footage to highlight a moment, or create a smooth slow-motion effect from standard-frame-rate video. Our tool supports speeds from 0.25x (slow motion) to 4x (time-lapse) and applies the change to both video and audio. No account needed for files up to 1GB.

Key Features

Wide Speed Range

Choose from 0.25x slow motion to 4x time-lapse and anything in between

Audio Speed Matched

Audio pitch and tempo adjust to match the new speed automatically

Any Video Format

Works with MP4, MOV, MKV, AVI, WebM, and other common formats

No Registration Required

Completely free for files up to 1GB — no account required

Fast & Secure

Files are processed over SSL and automatically deleted after download

No Watermarks

Your output video is clean — no added branding

Free Usage Limits

Free (No Account)

1GB

max file size

conversions per day

3GB

bandwidth per day

Increase your limits with vitelnk

5GB

max file size

conversions per day

25GB

bandwidth per day

14-day free trial

Cancel anytime

Unlimited videos

Start free trial See pricing

110+ professionals sharing their videos

Frequently Asked Questions

How do I speed up a video online?

How do I create a slow motion video?

Does the audio change speed too?

What speed values can I use?

What video formats are supported?

What is the file size limit?

Take Your Videos Further

Need more than just conversion? With vitelnk, you can embed your processed video on any website, add password protection, expiring links, viewer registration, and analytics.

Password Protection

Expiring Links

Viewer Registration

Video Analytics

Custom Branding

Try vitelnk Free

14-day free trial · cancel anytime.

Privacy & Security

Your files are processed securely with SSL encryption and automatically deleted after download. We never store or share your files. All processing happens on our secure servers.

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