AI Video Extender Make Videos Longer With AI

Upload a short clip and describe what should happen next. The AI video extender continues from the last frames, keeping the subject, lighting, and camera style, and adds up to 15 seconds of new footage.

Need ideas?
Example

The man in the picture sees another ship in the distance; the two ships are very close and about to collide.

Reference example. It is not a result generated from your upload.

Your settings are ready

This is an interface preview. Your prompt has not been sent to an AI model, no video has been generated, and no credits have been used.

What happens next?
—
Extend by
+5 s
Resolution
720p
Generate audio
Off
Video to extend
—
Output count
1

What Is an AI Video Extender?

An AI video extender makes a short clip longer by generating new footage that picks up where your video ends. It studies the final frames, the subject, the motion, the lighting, and the camera movement, and then continues the scene, so the extended video plays as one continuous shot instead of a loop or a freeze frame.

Most extend video AI tools also take a prompt, and that is where it gets creative: you can simply keep the action going, or describe what happens next, like a camera pull-back, a new character, or a plot twist. Let AI extend video clips from your phone, AI generators, animations, or B-roll, then download the longer version.

AI Video Extender Specs

What you can upload and what you get back.

SettingDetails
Input videoMP4, MOV, or WebM, up to 50 MB and 30 seconds
PromptRequired, 3 to 5,000 characters describing what happens next
Added length1 to 15 seconds per extension (+5, +8, +10, or +15 s here)
Resolution540p, 720p, or 1080p
AudioOptional: generate sound for the new footage
Longer resultsExtend the result again to keep the story going

Each extension adds new footage after the end of your clip. Credits depend on the added length, resolution, and audio, and are shown before you start.

AI Video Extender Video Examples

The label in each clip marks where the original footage ends and the AI-extended part begins.

How to Extend Video With AI

Make a video longer in three steps.

01

Upload Your Clip

Add the MP4, MOV, or WebM video you want to extend, up to 30 seconds and 50 MB. A steady ending with a clear subject gives the smoothest result.

02

Describe What Happens Next

Write a short prompt, or pick an idea like "Continue the same motion" or "Camera pulls back". Choose how many seconds to add, the resolution, and whether to generate audio.

03

Extend and Download

The AI generates the new footage after your last frame. Preview the extended video, download it, or extend it again for an even longer clip.

Why Use This Video Extender AI

Frame from the extended part of the clip: a large ship approaching on a calm sea at sunset

Continue the Story, Not Just the Clip

Unlike simple video extenders that loop footage or slow it down, the AI writes new frames from your prompt. Keep the action going, or steer it: reveal the horizon, start a chase, end on a close-up.

Frame from the extended part of the clip: two silhouetted dancers in front of a glowing moon

Seamless Style and Subject

The extended video keeps the same faces, outfits, lighting, color grade, and camera language as your original, so the cut point is hard to spot.

Frame from a later extension of the same clip: several ballet dancers on a stage in front of the moon, same black-and-white style

Choose the Length and Quality

Add 5, 8, 10, or 15 seconds at a time in 540p, 720p, or 1080p. Need more? Extend the result again and build a longer extended video step by step.

Optional Sound for the New Part

Turn on audio generation to get ambience and effects for the added footage, or leave it off and lay your own soundtrack over the whole clip in an editor.

When to Extend a Video

AI-Generated Clips

Most AI video generators stop at a few seconds. Extend AI video clips to give a scene room to breathe, or let AI extend videos you made with other tools.

Social Media Timing

Stretch a 5-second shot to fit a voiceover, a beat drop, or a platform’s ideal length.

B-Roll and Transitions

Add a few extra seconds of establishing footage or a smoother lead-out for your edit.

Ads and Product Videos

Finish a product spin, hold on the hero shot longer, or add a closing camera move.

Tips for Smoother AI Video Extensions

The last second of your clip matters most.

End on a Clear Frame

Avoid clips that end mid-cut, in heavy motion blur, or on a black frame. The AI continues from what it sees last.

Describe the Next Action

Say what happens after the clip ends: "she turns and walks toward the door", not a description of the whole video.

One Change per Extension

Add one new action or camera move at a time, then extend again. Small steps stay consistent.

Repeat the Style Words

Mention the look, like "black-and-white" or "golden hour", so the new footage keeps matching.

Prefer Steady Footage

Stable framing and even lighting give better continuations than shaky, flickering clips.

Use Clips You Own

Extend your own recordings or videos you generated, not other people’s content.

AI Video Extender FAQ

Common questions about extending videos with AI.

Make Your Video Longer With AI

Upload a clip, describe what happens next, and let the AI video extender continue the scene.

PixVerse is a trademark of its respective owner. EzImgMaker is an independent service and is not affiliated with PixVerse. Example clips are placeholders from public demos and will be replaced with our own extensions.