Instant A/B audio comparison.
One free comparison · $9 USD one-time unlock for unlimited use
Comparing audio shouldn't require a DAW.
QuickAB is a fast, focused tool for comparing mixes, masters, or references. No plugins. No setup. Just upload two files and switch between them instantly to hear exactly what changed.
Supports .wav files up to 50 MB.
Instant A/B switching
Zero-latency feel with seamless position sync
Crossfader Control
A/B switches instantly. Crossfader blends for critical listening.
Loudness meters
Peak dBFS and short-term LUFS analysis
Trim Controls
Adjust levels ±12 dB per track for precise matching
Browser-based
No audio processing or alteration
Built for producers who trust their ears.
Whether you're comparing mix revisions, evaluating mastering changes, or checking your work against a reference track, QuickAB gives you the clarity you need to make confident decisions. Perfect for musicians, mixing engineers, and producers who demand precision.
- •Made For Producers
- •Switch Between Two Files Instantly
- •No Signup Necessary
No Subscription · No Account Required
- •Unlimited switching
- •Crossfade control
- •Loudness meters
No subscription · No account required
Frequently Asked Questions
Does QuickAB process or modify audio?
No. QuickAB plays your files exactly as they are. There is no processing, conversion, or modification of any kind.
Is audio uploaded to a server?
No. All audio runs locally in your browser. Your files never leave your device.
Why a one-time fee?
To keep the tool focused and sustainable without ads or subscriptions. Pay once, use forever.