A music visualizer sized for Reels, not cropped into one.
Upload your track and cover art and get a 9:16 video that fits Instagram's frame — with the important parts kept clear of the caption, the profile row and the buttons.
No timeline, no export presets to guess at. Pick 9:16, design, download.
1080 × 1920 MP4, up to 20 seconds — Reels autoplays and loops, so a tight clip plays more than once.
Why Reels is its own problem
The frame is 9:16. The visible part is not.
Instagram plays Reels full-bleed and then puts its own interface on top: the caption and audio row across the bottom, the action buttons up the right side, and the profile bar in the corner. Artwork centred in a 9:16 canvas is fine. Artwork with the song title near the bottom edge is not — that is where the caption lands.
The other Reels-specific thing is the first second. Reels autoplays silently for a lot of people and it loops. So the opening frame has to read before the audio arrives, and the end has to sit comfortably next to the start, because most viewers will see that seam.
None of this is AI-generated — the motion comes from your actual audio, not a template guessing at where the beat is. And a Reels visualizer doesn't need to be long. TrackVis caps exports at 20 seconds on purpose: a Reel is a hook that loops, not a full upload.
How it works
Three steps.
Upload your song and cover
TrackVis reads the audio and builds a waveform that reacts to it. Trim to the 20 seconds you actually want to post.
Switch to 9:16
The canvas becomes 1080 × 1920. Move the artwork and text off the bottom third so Instagram's caption does not cover them.
Export and post
Download the MP4 and upload it to Reels. No re-encoding, no aspect ratio warning.
Features
What matters on Reels.
The parts of this that exist because Instagram behaves the way it does.
True 1080 × 1920
Exported at Instagram's own resolution, so nothing is upscaled and nothing is letterboxed.
Motion in the first second
Reels starts playing before anyone decides to watch. Audio-reactive movement means frame one is already moving, not a static card fading in.
Composed for the safe area
Text layers sit where you put them and stay there when you switch formats — so a title placed clear of the caption bar stays clear of it.
Loops without a hard cut
A 20-second clip loops on Reels. Choosing a section that ends near where it began is the difference between one play and three.
Also exports 4:5
The same scene switches to 1080 × 1350 for a feed post — the tallest shape the feed allows, and more screen than a square.
Your cover, not a template's
Start from a designed scene, drop your artwork in, and it is composed around your image rather than sitting on top of it.
Flat pricing, no watermark tax
Free to try means an actual export, not a locked preview. Paid plans are $9 a month or $2 a video — and you can top up per video instead of subscribing.
Reels specs
What Instagram wants.
Instagram's own limits for Reels are longer than 20 seconds. TrackVis is built for the hook — the loop that earns a second watch — not for a full-length upload.
FAQ
Reels questions.
What size should an Instagram Reel be?
9:16 at 1080 × 1920. That is what TrackVis exports when you pick the vertical format, so there is nothing to convert or resize before uploading.
Will Instagram crop my music visualizer?
Not if it is already 9:16. Cropping happens when you upload a square or landscape video and Instagram fills the vertical frame. What does get covered is the bottom of the frame, where the caption sits — so keep text out of the bottom fifth.
How long should a Reels music visualizer be?
Short enough to loop. TrackVis exports up to 20 seconds, and a clip that loops cleanly is usually stronger than a longer one that ends flat, because Reels replays automatically.
Do I need Instagram's audio, or my own?
The video you export includes your track's audio. If you want the post attached to a track already in Instagram's library, add that sound in the Reels editor after uploading.
Can I make one before the song is out?
Yes. TrackVis never publishes anything — you upload audio and download an MP4. Teasing an unreleased track is one of the most common uses.
Does this work for Stories too?
Yes. Stories use the same 9:16 frame, though the safe area is different — the top and bottom are busier, so keep text nearer the middle.
Is this an AI visualizer?
No. The motion comes from your track's actual waveform, not from AI. What you upload is what drives the video.