Extend a Video With AI
Add the Next 4 or 6 Seconds Free
Upload a clip of 1.7 to 14.9 seconds, write what happens next, and the AI continues it from the last frame. Your free account's one short video covers an extension of 4 or 6 seconds, from 5 credits.
A free account's one short video can extend a clip by 4 or 6 seconds: 5 credits for 4 seconds and 6 for 6, shown before you run. It needs a verified email and no card, and the result carries a small "Made with inflyu" mark and a blurred last second.
See the full AI Video Extender
Creators who start free on Inflyu
What extending a clip does
New footage that continues your take, not a loop or a freeze.
Continues from the last frame
The AI generates new seconds with the same subject, lighting and camera language, and saves the longer video as a new file.
You say what happens next
Write one action in plain words, such as she turns and smiles at the camera.
Pick 4, 6 or 8 seconds
The free video covers 4 and 6. Adding 8 seconds needs a credit pack.
Priced before you run
Extending by 4 seconds is 5 credits and by 6 seconds is 6. The editor shows the figure first.
Refund if it fails
A run that fails hands its credits back automatically.
Extend a video in three steps
No card and no reshoot.
Sign up free
Verify your email once the account is made so the sign-up credits unlock.
Upload the clip and say what happens next
The clip must be 1.7 to 14.9 seconds long, and a clean last frame gives the smoothest continuation.
Choose 4 or 6 seconds and run
The longer video saves next to the original. Adding 8 seconds, or a second extension, needs a credit pack.
AI Video Extender: free FAQ
Is the AI Video Extender really free?+
Yes, for one short clip. A free account (no card) includes one short video in the Video Editor, and this tool is one of the tools it covers. The editor shows the price before you run, and the free clip has to fit in your 20 sign-up credits. Longer clips and more runs need any credit pack, from $1.99 with no subscription. Results made with free credits carry a small "Made with inflyu" mark, and a free video also has its last second blurred under a large mark. Any credit pack removes both on new results.
How much longer can I make a clip for free?+
By 4 or 6 seconds, once. The free video is up to 6 seconds, so the 8 second length and any second extension need a credit pack.
How long can the clip I upload be?+
1.7 to 14.9 seconds. A clip outside that range is refused before anything is charged.
Will the extension loop or freeze my last frame?+
No. It generates new motion from the last frame. Fast action or a new person entering the shot can come out less steady, so check the result before you post it.
Can I extend a clip I did not make?+
Only a clip you made or have the right to edit. Do not upload footage of other people without their permission.
Do I need a subscription?+
No. You can pay as you go: credit packs are one-time purchases and their credits never expire. If you would rather have a steady supply, the monthly Starter ($7.99), Creator ($19) and Pro ($49) plans refill your credits each month, and you can cancel anytime. Unused monthly credits do not roll over.