Skip Hard Editing With Just One Photo
Put one picture in the Your photo slot and skip second clips, green screens, masks, and plugins. Our portal transition builds your walk, the glowing ring, and the camera move with no prompt to write.
Video effect
Portal Transition
Step into another world without filming two scenes or learning video editing. Use our portal transition to turn one photo of you into an 8-second continuous video.
Portal TransitionThis effect is built into the page and cannot be removed.
8s
Your photo
One person, face clearly visible, in good light. Standing works best.
New here? Sign up free and get 40 credits, enough for your first video at 480p.
Your photo 
The portal opens 
Stepping through 
The other side
Why Choose Our Portal Transition on Seadanse
Move Forward in One Continuous Shot
A glowing portal opens beside you, the camera follows you through the ring of light, and you arrive on the other side without cuts. Our portal transition delivers the entire 8-second move in one continuous shot.
Step Directly Into a Glowing New World
Step through the ring of light and arrive standing in another world. Our portal transition creates this new realm for you, so you land standing right in it.
Stay Recognizable on Both Sides of the Portal
Upload a clear, well-lit photo of you standing alone with your face visible. Our portal transition keeps your face, hair, and outfit recognizable on both sides of the portal.
Download Clean Videos Ready for Social Feeds
Export an 8-second MP4 at 720p or 480p in vertical 9:16 or horizontal 16:9 for a flat 80 credits at 720p or 40 credits at 480p, shown before you generate. Seedance 2.0 Mini makes every video, and our portal transition gives you watermark-free clips on paid plans and credit packs.
Use Portal Transition for Trends, Cosplay, and Edits
TikTok & Reels Creators
Join the Viral Portal Trend
Upload one photo of yourself to get an 8-second vertical video where you step through a glowing portal into another world. Post our portal transition straight to your feed and grab attention without learning complex editing tools.
Cosplayers & Storytellers
Give Your Character a Grand Entrance
Bring one photo in costume and watch a ring of light open beside you. Step into a new world to create unforgettable character reveals, lore intros, and fantasy series openers.
Video Editors
Drop Finished Portal Shots into Projects
Turn one photo into an 8-second clip in vertical 9:16 or horizontal 16:9 for your Shorts, Reels, or YouTube videos. Add our portal transition to your timeline with zero keyframing, tracking, or green screens.
How to Make a Portal Transition
Step 1
Upload Your Photo
Upload one clear photo of you standing to the Your photo slot.
Step 2
Choose Your Size
Pick 720p or 480p and vertical 9:16 or horizontal 16:9, open the note to add a line if you like, and check the cost beside Generate: 80 credits at 720p or 40 credits at 480p.
Step 3
Download Your MP4
Generate your clip, watch our portal transition create your 8-second video, and download the MP4.
Make Each Portal Transition for 40 or 80 Credits
You get 40 starter credits when you sign up free with no credit card, which covers your first video at 480p with our portal transition. Every render costs a flat 80 credits at 720p and 40 credits at 480p, the same for vertical 9:16 and horizontal 16:9, and a failed render returns its credits automatically.
Portal transition FAQ
What is a portal transition?
A portal transition is a video shot where a person, or the camera, passes through a glowing portal from one place into another. On Seadanse, our portal transition turns one photo of you into an 8-second video at 720p or 480p. The portal opens beside you, you step through, and the camera follows you in one continuous shot.
How do I make a portal transition without After Effects or CapCut?
Upload one photo of you into our portal transition effect. The portal, your walk through it, and the camera move are all built in. You get your finished clip with no masks, no keyframes, no tracking, no plugins, and no editing app.
Do I need two clips or a green screen for a portal transition?
No. One photo of you is all it takes to make the entire video. Our AI portal transition generates your movement and the new world on the other side without filming extra shots or setting up a green screen.
Can I use two photos, a start scene and an end scene?
This effect turns one photo into the whole portal shot and creates the world on the other side for you. To join two photos of your own, try our AI video creator. It lets you set a start frame and an end frame with Seedance 2.0 to connect both scenes smoothly.
How long is a portal transition video, and what size is it?
Every video is 8 seconds long at 720p or 480p, with 720p as the default, and downloads as an MP4. You can choose a vertical 9:16 layout by default for TikTok, Reels, and Shorts, or pick horizontal 16:9 for YouTube. Paid plans and credit packs deliver clean files with no watermark.
Is there a portal transition app?
No app to install. Our portal effect runs right in your browser on your phone, tablet, or computer. Simply sign up with an email address to start creating right away.
Is the portal transition free?
Yes. Sign up free with no credit card and get 40 starter credits to make your first portal transition video at 480p. After that, each video costs a flat 80 credits at 720p or 40 credits at 480p, which shows beside Generate before you submit. If a render fails, it returns its credits automatically. You can view all options on our pricing page.
Will I still look like myself on the other side of the portal?
Yes. Your face, hair, and outfit stay recognizable from your photo on both sides of the portal. A clear, well-lit photo of you standing alone, half-body or full-body, with your face visible, works best.
Can I use my portal transition video in commercial projects?
Yes. Every video made on a paid plan or with a credit pack includes a commercial use license and comes with no watermark, so you can share it across your business channels.
Are my photos safe and private?
Yes. Seadanse runs no facial recognition on uploaded photos, collects no biometric identifiers, and never sells personal information. Your photos and videos stay in your account until you delete them. Read more details in our privacy policy.
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Try Our Portal Transition Free Today
Turn your photo into an 8-second MP4 video of you stepping through a glowing portal into another world.