About Glowtrack Studio
Glowtrack Studio is a free collection of tools for musicians and creators — music visualizers, lyric videos, Spotify Canvas loops, cover art, thumbnails, Shorts, audio and image converters and more — that run entirely in your web browser.
Who makes it
Glowtrack Studio is made by Roobixx Interactive, an independent studio based in Melbourne, Australia, that builds games and creative software. It started as a music visualizer we built for our own music videos, and grew into a full toolkit as we kept needing — and building — the next tool.
How it’s different
- Private by design. Your music, videos and images are processed on your own device. Nothing is uploaded, so unreleased tracks and personal photos stay yours.
- Actually free. No sign-up, no paywall and no forced watermark. The site is paid for by the ads you see on it.
- Proper quality. Exports up to 4K, lossless audio options, exact sizes for every platform, and honest results — the loudness checker and key finder use the same standards as professional tools.
- Built on open source. We use and credit excellent open-source libraries for encoding and decoding; see Credits & licences.
The tools
Video: music visualizer, lyric videos, audiograms, Spotify Canvas, animated cover art, gaming Shorts, vertical crop, compression and GIFs.
Audio: converter, video to MP3, ringtones, cutter, joiner, slowed + reverb, BPM & key, LUFS and the Camelot wheel.
Design & images: album covers, thumbnails, soundwave art, app icons, and image conversion, compression and resizing.
Support the site
Glowtrack Studio is free, and ads cover most of the running costs. If a tool has saved you time or money, you can buy us a coffee on Ko-fi. Tips are entirely optional, aren’t tax-deductible donations, and don’t unlock anything extra — every tool stays free for everyone. They help us keep building new tools.
Get in touch
Found a bug, have an idea for a tool, or want to say hello? Email us — we read everything.