Birthday Celebration
A 32-second vertical (9:16) personalized happy-birthday video - the bright, party-energy sibling of the Customer Milestone Celebration anniversary template. Six palette-flipping scenes (deep grape → a yellow hero pop → grape → cream) carry a secret-friendly opener, a loud "Happy Birthday, {name}!" reveal with balloons, a multicolor confetti make-a-wish beat, a sincere warm word, a little birthday treat with a dashed promo-code chip, and a signed sign-off. Rounded Fredoka display type and a multicolor party palette. Swap six dynamic fields per recipient - first name (used in scenes 01 + 02), a free-text personal line, the offer text + code, the team signature, and a brand logo - to render a unique birthday video for every customer on a birthday cron / lifecycle webhook (CRM date-of-birth match, Klaviyo "Birthday" segment) and ship it as an email hero, SMS, or in-app drop. No age anywhere by design.
- Aspect ratio
- 9:16 · Vertical
- Duration
- ~32s
- Category
- Personalized
Try it with your own copy
Edit a field and the frame re-renders in your browser. No account, no credits - previews are free because they cost a browser paint, not a render.
What you can customize
This template exposes 6 dynamic fields you can swap per video - edit them in the editor or pass them to the API to batch-render variations at scale. The monospace name is the exact key to send in replacements.
First Name
textfirst_nameMaya
~6 characters max · 1 line
Personal Line
textpersonal_lineA little bird told us it's your birthday — and there was no way we were letting today go by quietly.
~132 characters max · 4 lines
Offer Text
textoffer_text20% off, our gift to you
~38 characters max · 2 lines
Offer Code
textoffer_codeBDAYMAYA
~19 characters max · 1 line
Team Signature
textteam_signature— The Maple crew
~29 characters max · 1 line
Brand Logo
urlbrand_logohttps://renderly.video/logo.png
Render it from the API
Copy either call below. Both already carry this template's ID and its real variable keys - swap the values for your own.
1. Preview it — free
Same body as a render. Costs no credits, creates no job. Returns a public URL that plays the video in a browser, plus a list of problems with your payload — a mistyped key is otherwise ignored in silence.
curl -X POST https://renderly.video/api/v1/previews \
-H "Authorization: Bearer $RENDERLY_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"templateId": "birthday-celebration",
"replacements": {
"first_name": "Maya",
"personal_line": "A little bird told us it'\''s your birthday — and there was no way we were letting today go by quietly.",
"offer_text": "20% off,\nour gift to you",
"offer_code": "BDAYMAYA",
"team_signature": "— The Maple crew",
"brand_logo": "https://renderly.video/logo.png"
}
}'2. Render it
Change one word in the URL. Keep templateId — it is what links your call to this template, so later improvements reach you automatically.
curl -X POST https://renderly.video/api/v1/renders \
-H "Authorization: Bearer $RENDERLY_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"templateId": "birthday-celebration",
"replacements": {
"first_name": "Maya",
"personal_line": "A little bird told us it'\''s your birthday — and there was no way we were letting today go by quietly.",
"offer_text": "20% off,\nour gift to you",
"offer_code": "BDAYMAYA",
"team_signature": "— The Maple crew",
"brand_logo": "https://renderly.video/logo.png"
}
}'Read the full contract, with character limits, from GET /api/v1/templates/birthday-celebration/variables. See the previewing guide, the rendering guide, or the OpenAPI spec.
Frequently asked questions
How do I customize the Birthday Celebration template?
Open the template in the Renderly editor and replace its 6 customizable fields (such as First Name) with your own text, images, or video. Every change previews instantly before you render.
How much does it cost to render this template?
Rendering is credit-based - 1 credit equals 1 minute of 1080p video, billed by the second. You only pay when you export, and credits never expire on the pay-as-you-go plan.
Can I generate this video at scale via the API?
Yes. POST this template's ID and a replacements object to /api/v1/renders - one call per row of data, 6 fields swappable per video. Send the same body to /api/v1/previews first to check it for free. No-code integrations like Zapier work the same way.
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