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AI video extension

AI Video Extender: add time to either end of a clip

Drop in a video and say what should happen. Extend forwards to grow the shot past its last frame, or backwards to generate the run-up it was never filmed with - up to 30 seconds either way. The new segment comes back as its own file, ready to join onto yours.

Which way to extend

Adding to the END grows the clip forwards from its last frame. Adding to the START builds footage that arrives into the first frame instead - a run-up the shot was never filmed with. No other tool in this category offers the second one.

How many seconds to add

Four to thirty seconds in one run. Need more? Run it again on the result.

Output resolution

Priced per second - and the count covers your source clip as well as the new footage, so a longer clip costs more for the same extension. The exact figure appears on the button once you attach one.

Up to 100 MB per clip, and the source must be 30 seconds or shorter.

200 credits

The new segment opens in a session you can come back to, ready to download or carry into another tool.

How it works

Extend a video in three steps

  1. Step 1

    Upload your video

    Drop in an MP4, MOV or WebM up to 100 MB and 30 seconds long. The extension is built from the frame at whichever end you are extending, so whatever the shot ends - or starts - on is what the new footage grows from.

  2. Step 2

    Say what should happen

    Write it as a direction rather than a description: what the subject does, where the camera goes. The model already carries the framing, lighting and grade across on its own, so the words are for the action, not the look.

  3. Step 3

    Generate and download

    You get the new seconds back as their own file, not spliced onto your original - join them in any editor, or carry both into the workflow editor. The run is billed on the new footage plus the length of the clip you uploaded.

Real output

Your clip, and the seconds it did not have

  • Your clip
    AI-generated
    A moving camera is the hard case: the new footage has to pick up the drift at the same speed and heading, or the join reads as a cut.
  • Your clip
    AI-generated
    On a locked-off shot the continuity is the person. Identity, clothing and the direction of the light all have to survive the join.

What it is for

When a clip stops too early - or starts too late

Reach a platform's minimum

Some placements will not take a clip under a set length, and a good six-second shot is not improved by being slowed to eight. Adding real seconds to the end keeps the pacing you cut for.

Give the edit handles

A shot that ends exactly on the action leaves nothing to cut on. Generating a few more seconds past the moment you need gives you frames to trim into, dissolve through, or hold under a title.

Give a shot its run-up

Backwards extension is the half nobody else offers. Generate the approach a shot never had - a camera settling into your framing, a subject walking in before the moment you captured - so an opening cut has somewhere to breathe instead of starting hard on the action.

Get past a model's limit

Almost every video model stops at 5 to 10 seconds per generation, which is the most common reason a clip ends before the idea does. Feed that output in here and keep going from where it stopped.

What it actually does

Extension, not repetition

It is not a loop, a freeze or slow motion

Those three make a clip longer by re-using frames you already have: a loop returns to the start, a freeze holds the last frame, slow motion stretches the same action over more time. This generates footage that did not exist, continuing from the frame at the end of your shot, so the subject keeps moving and the camera keeps travelling.

Forwards, or backwards into the shot

Continue is the usual one: the clip grows from its last frame. Prepend runs the other way and builds footage that arrives into your first frame, which is how you give a shot an approach it was never filmed with - a camera settling into the frame you have, a subject walking in. Nothing else in this category offers the second direction.

You get the new seconds as their own file

The extension comes back on its own rather than spliced onto your original, so joining the two is one step in any editor - and it means you can regenerate the extension without re-rendering the part you filmed. The segment keeps your source's aspect ratio. Four to thirty seconds per run; to go further, run it again on the result.

Pay by the second, not by the month

Every plan includes credits you can spend on this page or anywhere else on YouArt, and a new account starts with free trial credits.

Basic

For hobbyists and explorers

$9.99/mo
Select Plan
  • 1000 credits
  • Up to ~200 images/month
  • At least ~1000s video/month
  • Intelligent creative agent
  • Video editor
  • Latest image models, including GPT Image 2 and Nano Banana Pro
  • Latest video models, including Seedance 2
  • Realistic face uploads
  • Voice generation with ElevenLabs
  • No watermark
  • Unlimited template access

Pro

Most Popular

For creators and pro users

$29.99/mo
Select Plan
  • 3300 credits
  • Up to ~1000 images/month
  • At least ~3300s video/month
  • Intelligent creative agent
  • Video editor
  • Latest image models, including GPT Image 2 and Nano Banana Pro
  • Latest video models, including Seedance 2
  • Realistic face uploads
  • Voice generation with ElevenLabs
  • No watermark
  • Unlimited template access

Max

For power users and teams

$149.99/mo
Select Plan
  • 18000 credits
  • Up to ~6000 images/month
  • At least ~18000s video/month
  • Intelligent creative agent
  • Video editor
  • Latest image models, including GPT Image 2 and Nano Banana Pro
  • Latest video models, including Seedance 2
  • Realistic face uploads
  • Voice generation with ElevenLabs
  • No watermark
  • Unlimited template access

Team

For teams and studios

$329.99/mo
Select Plan
  • 36300 credits
  • Up to ~12000 images/month
  • At least ~36300s video/month
  • Realistic face uploads
  • Share canvas, workflows, and assets with your team
  • Up to 10 members per team
  • Up to 5 teams
  • Role-based management
  • Team credit management and spending caps
  • Per-member usage tracking
See all plans

FAQ

Frequently asked questions

What is an AI video extender?
It is a tool that makes a video longer by generating new footage to continue it, rather than by re-using the frames you already have. The model reads the end of your clip, carries the subject, camera movement, lighting and colour forward, and hands back the extra seconds as a new file.
Is this the same as looping a video?
No, and the difference is the whole point. A loop jumps back to the first frame, so the motion resets and anyone watching sees the seam. A freeze holds the last frame and the picture stops moving. Slow motion spreads the same action over more time and changes the pacing. This continues the shot: the subject carries on doing something new, and the camera keeps going where it was heading.
How many seconds can I add?
Between 4 and 30 seconds in a single run, which is the top of what tools in this category offer. To go further, run it again on the result. Your source clip itself must be 30 seconds or shorter.
Can it add footage to the START of a clip?
Yes - switch the direction to Prepend and the model builds footage that arrives into your first frame instead of growing out of your last. It is the way to give a shot a run-up it was never filmed with: a camera settling into position, or a subject entering before the moment you captured. None of the other tools in this category offer it.
Do I get one longer video back?
No - you get the new seconds as their own file, not joined onto your original. Putting them together is one step in any editor, and keeping them separate means you can regenerate the extension without touching the footage you filmed. The segment comes back in your source clip's aspect ratio.
Do I have to write a prompt?
Yes, and it changes the result more than anything else on the page. Write it as a direction - what the subject does next, where the camera goes - rather than a description of what is already on screen. The look, framing and grade are carried across automatically, so the words are best spent on the action. A vague prompt gets a vague continuation you paid for.
Will the new footage match my original exactly?
It is generated rather than filmed, so it will not match a real camera frame for frame, and fine detail like text, logos and faces at a distance is where the difference shows first. What it does hold well is the framing, the camera movement, the light and the grade, which is what makes the join read as continuous. Shots with clear motion and a bounded scene extend more convincingly than very busy or very flat ones.
How much does it cost?
It is billed per second at 20 credits for 480p, 40 for 720p and 100 for 1080p - and the count covers your source clip's length as well as the seconds being added. So at 720p, extending a 5-second clip by 5 seconds is 40 x 10 = 400 credits, while the same extension of a 20-second clip is 40 x 25 = 1,000. Attach a clip and the exact figure appears on the button before you spend anything.
What files can I upload?
MP4, MOV and WebM, up to 100 MB per file and 30 seconds long. You choose the output resolution from 480p to 1080p, and the aspect ratio follows your source rather than being cropped to a preset.

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Beyond one extension

Need more than thirty seconds?

This page runs one fixed step. Open the workflow editor to chain several extensions back to back, join the segment onto your source automatically, run the same extension across a batch of clips, or continue straight into an upscale.