Tactile scene looks: journal, corkboard, postcard, instant, photo booth and more.
Photo and video slideshow app
Swish
Beautiful photo and video slideshows, made in minutes on your Mac.
Overview
What Swish is and why it exists.
Swish turns your photos and clips into a slideshow worth watching. Pick your pictures, choose a look, add a song, and Swish handles the motion, the transitions and the timing. Every look is a little scene of its own: prints pinned to a corkboard, pages of a travel journal, postcards on a table, stamps in an album. Export a crisp MP4 to share anywhere. Everything runs on your Mac, with no account required.
Highlights
Why people love Swish.
Gentle Ken Burns motion that drifts toward faces it finds in your photos.
Slide changes that land on the beat of your music.
Over 25 transitions, from a soft crossfade to a 3D cube.
Title and quote designs: romantic, funky, typewriter, neon and more.
Original music included, free to use anywhere.
Clip sound with automatic music ducking under your videos.
Exports a sharp MP4 in 720p, 1080p or 4K.
The story
From problem to product.
The problem
Most slideshow tools are either bland templates or full video editors that take an afternoon to learn.
The approach
A focused editor where the craft is built in: scenes, motion, music and beat sync that look great by default.
Under the hood
How it came together.
Scope
What the product covers, end to end.
- Slideshow editor with looks, transitions, captions, titles and quotes.
- Photo and video import with face-aware framing.
- Soundtrack mixing, ducking and beat detection.
- MP4 export with music and clip sound.
- Full-screen player with keyboard controls.
Technology
How it is built and kept running.
- Flutter client for macOS, with iPhone and iPad builds.
- One renderer draws both the live preview and every exported frame.
- AVFoundation for video decoding and H.264 export.
- Vision for face and subject detection.
- Native beat detection and Sparkle updates.
Role & delivery
What NashSaint designed, built and shipped.
- Product design and engineering across macOS, iPhone and iPad.
- Original music composed in code for the built-in library.
Outcomes
The difference it makes.
- 01 A finished slideshow in minutes, not hours.
- 02 Exports that look exactly like the preview.
- 03 Runs on Apple Silicon and Intel Macs.
Need a hand?
Questions about Swish?
Send a support request and you will hear back by email. Privacy and terms are always one click away.