Frequently asked questions
What is Weekdays Off?
Weekdays Off is a free music visualizer and audio-reactive video maker that runs in your web browser. Add a track, pick a look, and everything on screen moves with the music. Export an MP4 music video or run the visuals live on a second screen.
Is Weekdays Off free?
Yes. A free account gives you three video exports a day, with no card needed. Nothing to install: it runs in Chrome, Edge, Firefox and Safari.
How do I make a music visualizer video for YouTube?
Add your song, choose a look such as frequency bars, a sound sphere or an endless tunnel, and press Export video. Pick Landscape 16:9 and 1080p or 2K. You get an MP4 that's ready to upload to YouTube, with the visuals moving to the bass, mids and highs of your track.
Can I make vertical videos for Instagram Reels, TikTok and YouTube Shorts?
Yes. In the export dialog choose Vertical 9:16; the preview reshapes to match so you can frame it. Square 1:1 is there for feed posts too.
Can I make a visualizer for a full mix or album?
Yes. Add several songs at once and Automix lays them out as one continuous mix with crossfades, matching levels and lining up beats. Videos can be up to an hour long in Chrome or Edge on a computer.
Can I use it for live visuals or projection mapping?
Yes. Performance mode sends the scene full-screen to a second display (or several), with each screen showing its own scene and corner-pin adjustment for projection mapping. It reacts to a track or to live audio from your interface.
Which browser works best?
Chrome and Edge give the fastest exports and the most compatible files. Firefox works well too; see the note above about its audio format.
What format are exported videos?
MP4 files with H.264 video at 30 frames per second, in landscape 16:9, vertical 9:16 (Reels, TikTok, Shorts, Stories) or square 1:1, at 720p, 1080p or 2K. Pick the shape in the export dialog; the preview changes to match. Files are saved to your browser's usual downloads folder, named after your track, the quality and the size. Long videos download the same way once they've finished rendering.
Long videos are encoded at YouTube's recommended upload rate (about 8 Mbps at 1080p) to keep the file a manageable size; shorter ones get a higher rate for the sharpest result.
Do I need to install anything?
No. Everything runs in your browser.
Known limitations
Why won't my Firefox export play on my iPhone or in QuickTime?
Firefox can't encode AAC audio inside web pages, so videos exported from Firefox carry their soundtrack as Opus audio instead. The video itself is the same H.264 MP4 you get from any browser.
Opus plays in Chrome, Firefox, Edge and VLC, and on most web platforms. QuickTime, iPhones and iPads don't support it, and some video editors and upload sites may reject the file or drop the sound.
If the video is going to an Apple device or into an editor, export it from Chrome or Edge, which use AAC audio that plays everywhere.
Why does exporting take as long as the song in Safari?
When a browser can't use the fast export path, the app records the scene while the track plays, so the export takes as long as the track. This is most likely in Safari.
Keep the tab open and in front until it finishes. Chrome and Edge export much faster than real time.
How long can an exported video be?
Up to 1 hour in Chrome or Edge on a computer. Videos over 10 minutes are written to disk as they render (in the browser's own storage) and download as usual when they're done, so the finished video never has to fit in your browser's memory. You need about as much free disk space as the video's size, roughly 3.5 GB for an hour at 1080p; the export tells you before it starts if there isn't enough.
In browsers that can't do that, the whole video has to be held in memory until it's done, so the limit is lower: about 40 minutes at 720p and 25 minutes at 1080p or 2K. On phones it's 10 minutes. The export dialog shows the limit for each quality and won't start one that's too long.
Whatever the browser, the soundtrack is held in memory while the video renders, which is why there's a limit at all. For a longer video, export it in parts and join them in a video editor.
A long render takes a while: the progress bar shows roughly how long is left. Keep the tab open and in front until it finishes, because browsers slow down tabs in the background.
Why does exporting on an iPhone take as long as the song?
Safari on iPhone can draw the video quickly but may not have an audio encoder. When it doesn't, the app records the soundtrack in real time while the video renders (silently, nothing plays out loud), so the export takes at least as long as the track.
Phones also render at the video's own size rather than twice that and then shrinking it, which keeps 2K within an iPhone's graphics memory. For the fastest exports, use Chrome or Edge on a computer.
Why can't I export while using live audio input?
Export renders your whole track ahead of time, which isn't possible with a live microphone or line-in signal. Stop live input, load a track, then export.