
Make a Birthday Video They Don't See Coming
Invite friends and family to record private birthday messages. They never see each other's clips — until you all watch the reveal together.
Start the Surprise- Free trial
- No app needed
- Works on every phone
Three Steps. Zero Spoilers.

Start a Birthday Chain
Tell us who it's for and when. We'll generate a shareable invite link.

Everyone Records Alone
Share the link with family and friends. Each person records their own clip privately — no one sees the others.

Watch the Reveal Together
When you're ready, hit reveal. The whole video appears — only then. The surprise is impossible to spoil.
Music That Fits the Moment
Every birthday chain gets a custom music track. Here's what one sounds like.
Want a fully custom song written just for them? AI-generated personalized music coming soon — sign up below to get notified.
Why Not Just a Group Chat?
Group Chat
Everyone sees what came before. The surprise is gone before it starts. Half the people forget to send anything.
Professional Edit
Costs hundreds. Takes weeks. Strangers edit your family's clips.
KaraoClip Blind Chain
No one sees the surprise. Compiled automatically with music. Ready to watch in minutes.
Real Birthday Moments
Long-Distance Birthdays
Family in different time zones. Each person records when they can. The reveal feels like everyone was there.
Last-Minute Surprises
Forgot Mom's 60th tonight? Start a chain at 9pm — have a polished video by dinner tomorrow.
Surprise Parties
Collect messages from guests before the party. Play the reveal at the venue. Watch their face.
Pick Your Plan
Premium
- Up to 30 contributors
- Up to 30 seconds per clip
- Watermark-free download
- Custom music tracks
- Priority compilation
Pro
- Unlimited contributors
- Up to 60 seconds per clip
- AI-generated custom song (coming soon)
- Multiple chains
- Premium support
Get Notified: AI Custom Songs
Type a description, get an original song made just for them. Coming soon.
Common Questions
How long should each clip be?
Between 10 and 30 seconds is the sweet spot. You set a max — most birthday chains use 20 seconds per person.
What if Grandma can't figure out the camera?
Tap the link, tap record. No app to install, no account needed. We tested it with grandparents — it works.
Can the birthday person see clips before the reveal?
No. That's the whole point of the blind chain. Even if they're tech-savvy, they can't open the link until you publish the reveal.
Can I choose the music for my video?
We auto-pick a track that matches the occasion. Custom AI-generated songs from your description are coming soon — sign up above to get notified.
How many people can record?
Free trial supports up to 5 contributors. Premium scales to 30. We've seen birthday chains with 30+ people.
When do I pay?
Free trial gives you a watermarked preview to share. You only pay if you want a watermark-free download and the full feature set.
Ready to Surprise Them?
Start a birthday chain. No app. No credit card. Just a link.
Start the Surprise