How it works
- Load your track. MP3, WAV, FLAC, AIFF, OGG or M4A up to 500 MB — decoded locally, nothing is uploaded.
- Pick a listening environment. Phone speaker, laptop, earbuds, headphones, hi-fi system or car stereo.
- A/B against the original. Switch environments instantly while the track plays and hear exactly what your mix loses on each system.
Features
- Six real-world environments. From the merciless mono phone speaker to the bass-heavy car stereo — each modeled on a typical device.
- Instant switching. Change environment or jump back to the original mid-playback, with no rendering wait.
- 100% in your browser. Your unreleased mix never leaves your computer — the simulations run locally with the Web Audio API.
- Big-file friendly. Load a full-resolution WAV bounce up to 500 MB straight from your DAW.
FAQ
Is Mix Check free?
Yes. Like all of AudioKit's browser tools, it's free with a quota of 5 uses per day for anonymous visitors, and AudioKit Premium lifts the daily limit. Every listening environment is included in the free version — nothing is locked behind the subscription.
Is my mix uploaded anywhere?
No. Your track is decoded and played entirely in your browser, and the simulations are applied locally with the Web Audio API. Your unreleased mix never leaves your computer — the only network call is the anonymous daily-quota counter.
Which formats and file sizes are supported?
MP3, WAV, FLAC, AIFF, OGG and M4A up to 500 MB, so you can load a full-resolution WAV bounce straight from your DAW. For best results, use the highest-quality export you have: the simulations will reveal more of what's really in your mix.
How realistic are the device simulations?
Each environment models the frequency response and quirks of a typical device: a mono phone speaker with no lows, thin laptop speakers, smiley-curve earbuds, a flattering hi-fi and a bass-heavy car with road-noise compression. It's a fast sanity check between real-device tests — not a replacement for them, but it catches most translation problems in seconds.
Why does my mix sound bad on a phone speaker?
Phone speakers are mono and reproduce almost no low end. If your track relies on stereo width or sub-bass to carry its energy, those elements simply vanish. Check that the kick has some mid-range knock, the bass has harmonics and the hook still works in mono — that's exactly what the phone profile is for.