Happy Birthday Sister Video

1 photo, 6 seconds: a party hat, gold 21 balloons, two cakes and the candles.

AI video template

A 6 s birthday surprise: she sits calmly, then a party hat goes on, gold 21 balloons rise above her, two cakes come in, she blows out the candles and ends with fingers on her cheeks, with the clip’s sound

Your photo (adults only)→ the birthday sisterOne adult, full body works best, face clear

These are my photos, or I have permission. No minors.

750 credits · 225 on Unlimited

Happy Birthday Sister Video makes a birthday video for sister from one photo: she sits calmly in front of a dark backdrop, then hands bring in a blue party hat, gold number 21 balloons and two birthday cakes, she blows out the candles and finishes with a cute pose, fingers on her cheeks. A 6-second vertical video with the clip’s sound.

Updated October 13, 2026

At a glance

Length: 6 seconds
Format: Vertical 9:16
Photos: Your photo (adults only)
Price: 750 credits (HD 1,500)
On plans: Starter and Pro 375 · Unlimited 225
Sound: The trend’s sound, mixed in
Sign-up: An account is required (free to create)
Watermark: No watermark

Which photos work best

Face and shoulders
She sits facing the camera the whole time: a clear photo with her face and upper body in view works best.
A clear face
A sharp, front-facing photo: the camera gets close.
Your outfit stays
You appear in what you wear in the photo, so pick one you like.

What is a happy birthday sister video?

A happy birthday sister video is a short surprise clip for your sister’s birthday: the party arrives around her, one piece at a time, and she gets the candles. It is made to post on the day, send to the family chat or put in her birthday story. A happy birthday sister ai template does the filming for you, from a photo you already have.

Our template is a calm studio shot that turns into a party: the party hat, the gold 21 balloons, the two cakes, the candles and the cute pose at the end. From one photo the birthday guest is your sister, with her own face, hair and clothes; the backdrop, the hands, the balloons, the cakes and every move come with the template.

Use the happy birthday sister template

Or one for mom: Happy Birthday Mom Video

Or one for grandma: Happy Birthday Grandma Video

Or a funny one: Funny Birthday Video

See the trend on TikTok

How to make it

1
Upload a photo
One adult, face clear, the whole body if you can.
2
Generate
The happy birthday sister video template is set: vertical, 6 seconds.
3
Post it
Ready in about five minutes, with the clip’s sound.

AI video template or filming it yourself

Both end with the same clip on TikTok. The difference is what you need before you start.

	AI video template	Filming the trend
You need	One photo of your sister	A studio, balloons, two cakes and three helpers
Time	About five minutes	An afternoon of set-up and retakes
The setting	A dark studio, drawn by the AI	Wherever you can set it up
Sound	The clip’s sound, mixed in	Added on TikTok
Cost	750 credits, less on a plan	Free, plus your time

Questions

Is the Happy Birthday Sister Video free?

No. A template video uses 750 credits at 480p (1,500 in HD), about $10 with a credit pack. Starter and Pro plans pay half (375) and Unlimited pays 30%: 225 credits a video, about $2.25. The 100 free credits you get when you sign up are not enough for one video.

Can the balloons show a different age?

No. The gold number balloons come from the template and read 21; the prompt keeps them as they are, so they are not set to another age.

Can I make one for my little sister?

Only if she is an adult. Photos of anyone under 18 are not supported, so the birthday guest has to be a grown-up sister.

Is it only for sisters?

No. Any adult works: a brother, a best friend, your partner or a cousin. The page is named for sisters because that is how most people search for it, and it works as a sister birthday video maker the same way.

Whose hands are in the clip?

They come with the template: the prompt keeps the hands that bring in the hat, the balloons and the cakes. Only the birthday guest comes from your photo.

Whose photo can I use?

Adults only: photos of children are not supported. Your own, or a friend’s who agreed to it. No famous people. Uploads go through an automatic safety check.

Can I post my happy birthday sister video?

Yes. It is a finished 6-second vertical video with the sound mixed in, so you can post it to TikTok as it is.

Does the video have sound?

Yes: your video comes with the clip’s sound, mixed in. If TikTok flags the sound for copyright, swap in a sound from TikTok’s sound library when you post.