🥳 Diy 21st Birthday
Celebrate a milestone with a personalized slideshow. Our free AI tool makes it easy to combine photos, videos, and music for the perfect tribute.
Start Free ✦No credit card. No download. Free forever.
Crossing into adulthood at 21 is a huge moment. Mark it with a custom slideshow that tells their story, from adorable childhood moments to recent adventures. Our free, browser-based AI slideshow maker simplifies the process, letting you focus on the memories, not the tech.
Our AI scene composition intelligently arranges your media, freeing you to curate the perfect narrative for their big day.
Export your 21st birthday slideshow in stunning 4K, ensuring every cherished photo and video clip looks its best, ready for any screen.
Easily add their favorite songs. Our music ducking feature ensures your voice narration or captured audio always takes center stage.
Enjoy a completely free slideshow with no watermark on Pro. Your creation is yours to share, download, and rewatch for years to come.
"For an upbeat 21st celebration, consider '22' by Taylor Swift or 'Uptown Funk' by Mark Ronson ft. Bruno Mars to get everyone in a festive mood."
"Chronicle their life from baby photos to their cap and gown, culminating in recent photos from their gap year travels through Southeast Asia, set to a soundtrack of their favorite indie rock."
"Imagine this slideshow gracing the big screen at a loft party in downtown Austin, or projected subtly on a wall at a cozy backyard barbecue in sunny Los Angeles."
Yes. Upload any MP3, M4A, or WAV and the editor automatically ducks the music under any voice narration so every word stays clear. You can also pick from our built-in royalty-free library.
Most slideshows feel right with 20 to 60 photos. The AI scene composer auto-paces each photo to the rhythm of your song, so you do not have to count seconds yourself.
No. The entire diy 21st birthday slideshow maker runs in your browser — Chrome, Safari, Firefox, or Edge on desktop and mobile. Nothing to install, nothing to update, nothing to uninstall later.
Under ten minutes for a polished result. Drop in your photos, choose a song, and the AI assembles a first draft you can tweak in the timeline. Most people finish in a single sitting.
Free exports include a Cinematic watermark. Cinematic Pro removes the watermark and supports 1080p and 4K exports up to 60 fps.