AI Video Extender
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AI Video Extender

AI Video Extender

Make a video longer with AI. Upload a clip, describe what happens next, and the AI continues the scene from the last frame - adding 5, 10 or 15 seconds to the end of your video.

A clip often ends a moment too soon: the shot is perfect but only four seconds long, the action stops before it lands, or a video made with an AI generator hits its length limit. An AI video extender picks up where the clip leaves off. You upload the video and describe what should happen next, and the AI studies the last frame - the scene, the lighting, the subject, the camera position - and generates a new segment that continues from it. The new part is attached to the end of your clip, so you get one longer video instead of two pieces to stitch together. You decide how much to add, from 5 to 15 seconds, and what happens in it: the action can simply carry on, something new can enter the frame, or the camera can start to move. It is useful for stretching short AI-generated clips, giving b-roll enough length to cut with, letting a shot breathe before a transition, and trying different endings for the same scene. The more concretely you describe the continuation, the closer the result follows it. Each run produces a different continuation, so you can generate again for another take, or extend the result once more to build a longer sequence step by step.

At a glance

InputOne video (MP4, MOV or WebM), up to 60 seconds, and a description of what happens next
Added length5, 10 or 15 seconds
QualityStandard (480p) or HD (768p) - the whole result is saved at this quality
OutputOne MP4: your clip followed by the new part
SpeedAbout 1 to 3 minutes for 5 seconds
PricingBy the seconds added: 8 credits per 5 seconds in Standard, 16 in HD; free tier available

Continues from your last frame

Same scene, more time.

Picks up where the clip ends

The new part starts from the final frame, so the scene, light and framing carry over.

One finished video

The extension is attached to your clip. You download a single MP4.

You direct what happens

A sentence is enough.

Describe the continuation

Tell the AI what moves, what enters the frame or how the camera travels.

5, 10 or 15 seconds

Add a short beat or a longer stretch of new footage.

Flexible and fair

Pay for what you add.

Standard or HD

Standard is faster and cheaper. HD gives a sharper result.

Priced by the seconds added

The length of your original clip does not change the price.

How to extend a video with AI

Upload, describe, extend.

STEP 1

Upload your video

MP4, MOV or WebM, up to 60 seconds. The new part starts from the last frame, so end on a clear shot.

STEP 2

Describe what happens next

Say what should be seen: a small boat glides across the lake, the camera slowly pans right, the dog runs toward the door.

STEP 3

Choose length and quality

Add 5, 10 or 15 seconds in Standard or HD, generate, and download one MP4 with the new part attached.

What people use it for

Longer AI clips

Take a short generated clip past its length limit.

B-roll

Give a shot enough seconds to cut with.

Smoother endings

Let the action finish instead of cutting off.

Alternative endings

Try different continuations of the same scene.

Social videos

Stretch a clip to fit a sound or a format.

Longer sequences

Extend the result again to build a scene step by step.

Frequently asked questions

How do I extend a video with AI?

Upload the clip, describe what happens next, choose how many seconds to add and the quality, and generate. You get one MP4 with the new part attached to the end.

Is this AI video extender free?

There is a free tier and no credit card is needed to try it. The price follows the seconds you add: 8 credits per 5 seconds in Standard and 16 in HD.

How much longer can I make a video?

5, 10 or 15 seconds per run. You can extend the result again to go further.

Does it keep my original video?

Yes. Your clip plays first and the new part follows it. The whole video is saved at the quality you choose.

What should I write in the description?

Describe what should be seen next: the action, anything new entering the frame, and how the camera moves. Keep it to one clear idea.

Will the join be visible?

The new part starts from your last frame, so the scene continues without a cut. Ending the original on a steady, clear shot gives the smoothest join.

Can I extend AI-generated videos?

Yes. It works on clips from Text to Video, Image to Video and other generators as well as on filmed footage.

Does the new part have sound?

Yes. Your original audio is kept and the added seconds get AI-generated sound. With talking people it can be meaningless speech, so check it and replace it in an editor if needed.

What resolution is the result?

Standard is 480p and HD is 768p. For a widescreen clip that is 832 x 480 or 1312 x 768.

Can I add footage before the start of a video?

No. This tool only continues from the end of the clip.

Good to know

The result uses the quality you pick — The finished video, including your original part, is saved at 480p or 768p. A sharper original is scaled down. Use the AI Video Upscaler afterwards if you need more resolution.

It continues from the end only — The new part is added after the last frame. It cannot add footage at the start or in the middle.

The new part is invented — The AI makes up what happens next from your description and the last frame. People and objects can drift from how they looked earlier in the clip.

Sound in the new part is generated — Your original audio is kept, and the added seconds come with AI-generated sound. If someone is talking in the clip, the new part can contain made-up, meaningless speech - mute or replace it in an editor.

Each run is different — Generating again gives a different continuation of the same clip.

Related tools & models

Let the scene keep going

Upload a clip, describe what happens next and add up to 15 seconds.