Ryu
Zach King
Polite Threat
Titanic
Citizen Kane
Dancing Shaq
Picard Facepalm
The Sopranos
Obama Mic Drop
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How to Extend Videos with AI
- 1
Upload your video
Start with a clear clip with stable framing and readable motion. - 2
Generate a 4-second extension
The model continues the scene based on what's already in the clip. - 3
Download and edit
Use the extended segment as a natural ending or transition.
AI Video Extender Video Tutorial
Watch our AI Video Extender tutorial:
AI Video Extender Use Cases
See how Video Extender can be used in different scenarios.
Extend a clip so it doesn't cut off mid-motion or mid-sentence. Need to create video from scratch? Try our image to video or text to video tools.
Create extra seconds for end cards, titles, or on-screen text. If you need more frame space rather than more time, use our AI Video Expander.
Generate extra frames for crossfades, match cuts, or beat-aligned edits.
Extend reactions, pauses, and punchlines to improve watch time. If the finished clip needs synced sound, use our AI Video to Audio tool.
Extend the follow-through, celebration, or replay moment to make the play feel complete.
Add breathing room for branding beats, product reveals, and logo locks.
Extend B-roll or establishing shots to fit an edit without looping or slow-motion. For face swap in video, see our face swap video tool.
Why Creators Love AI Video Extender
Turn short clips into usable shots—extend by 4 seconds to create cleaner endings and more edit flexibility (often saving hours of re-cutting or re-shooting).
Maintains continuity
The extension aims to match motion, lighting, and scene dynamics so it feels like the same shot.
Fast, simple workflow
Upload once, extend by 4 seconds, download. No timeline editing required—minutes end to end.
Great for short-form pacing
Add breathing room for reactions, punchlines, and end cards without re-cutting the whole clip.
Better transitions
Create extra frames for crossfades, captions, or match cuts—no slow-mo hacks.
Advanced controls in the full tool
Use optional prompt and audio guidance after signup for more directed continuations.
Testimonials
Hear what our users have to say
"I've stopped all other AI subscriptions and just stick with Magic Hour for everything content related. It's literally all in one: audio, image, and video gen tools plus you can find all the best models."
Mabel
Video production agency lead
"My editing time went from 3 hours to 20 minutes per shoot. ... Finally have my evenings back."
Rachel Thompson
Freelance Photographer
"I've been able to create more ads and marketing content, as well as create assets for my applications. The user experience is quite good as well especially for making and iterating on my ads. I primarily use Text to video, Image generator, and Image editor."
Simon
Marketer and iOS developer
"The output is high-fidelity enough to use in actual projects without a ton of editing."
Jenn Spicher
Artist
AI Video Extender Features
Add a 4-second AI-generated continuation to your clip
Context-aware continuation
Understands what's happening in your clip and extends it in a way that fits the scene.
Continuity that looks real
Preserves motion, lighting, camera behavior, and overall realism across the extension.
Natural endings, fewer hard cuts
Adds clean runway for better pacing, transitions, and edits.
More control when you need it
In the full tool, guide the extension with an optional prompt or audio.
AI Video Extender FAQ
Yes, AI video extender is free with no sign up required. Extensions use the shared allowance of 3 free video generations per day — no account needed. Sign up for free to unlock account-specific credits and rewards, saved projects, and access to more tools. Upgrade for more credits, more controls, and priority processing.
No. AI video extender works in your browser with no account, no sign up, and nothing to install. Sign up for free to unlock account-specific credits, rewards, and saved projects.
The model uses visual context from the existing frames - including motion, lighting, camera movement, and scene layout - to predict a plausible continuation. Clean footage with stable motion and minimal occlusion tends to extend more smoothly.
In the free tool, no - it's fully automatic. In the full tool after signup, you can optionally add a prompt to steer style or action, and you can add audio to guide pacing and beats. This is the best option when you need a specific outcome.
The free tool adds 4 seconds to your clip. More duration controls are available in the signed-in tool.
AI Video Extender adds additional footage to the end of your uploaded video. It analyzes the clip's content and motion, then generates a continuation designed to look like the same scene. The goal is a natural extension that avoids abrupt endings.
Shots with clear subjects, steady lighting, and readable motion tend to work best. Very fast cuts, heavy motion blur, or sudden scene changes can reduce continuity. If possible, start from a clip with a stable ending frame and consistent movement.
We Value Your Privacy & Data Security, Always
Commercial use, no AI training, deletion controls, and feature-specific retention. Trust & privacy
Commercial use
Subscriptions and credit packs permit commercial use of outputs. Users without either purchase are limited to personal, non-commercial use.
No training
We do not use customer prompts, uploads, or outputs to train AI models. This covers free, paid, and API use.
Delete anytime
Delete saved projects or request account deletion. Retention varies by feature; account deletion has a separate 14-day restoration period.
Security
Encrypted in transit and at rest. Access is restricted for operations and support.
More Free AI Tools
These tools are part of Magic Hour's AI video generator hub—an overview of all our AI video tools, including text-to-video, face swap, lip sync, and more.