Free browser-based audio converter with no uploads or signups required
Find and fix the bass note your room exaggerates
Stage
Not given
Startup
Founded
Not given
2026
Based in
Not given
Not given
Pricing model
Freemium
Free trial
Pricing
Free: 5 conversions per month with 10-second preview output, 20MB file size limit. Pro Weekly: $5.99/week with unlimited conversions, full-length output, 500MB file size limit. Pro Monthly: $9/month with same Pro features. Pro Yearly: $5/month billed as $60/year (44% discount) with same Pro features
Free for 14 days. One-time lifetime unlock: $19.99 (launch price until November 5; regular price $29.99). Room scans always free.
Key features
Local browser-based processing with WebAssembly
Works offline once page loads
Support for MP3, WAV, FLAC, OGG, M4A, AAC, WMA, AIFF, Opus
Unlimited conversions with Pro subscription
500MB file size limit on Pro plans
Audio editing tools including cutter, joiner, compressor, and speed changer
Cross-device access with Pro subscription
Works on all modern browsers and operating systems
Automatic room bass frequency detection using microphone or ear
Room profiles with per-room settings
DAW Audio Unit plug-in for Mac
Zero-delay operation in DAWs
Only cuts, never boosts audio
Windows 10+ and macOS 14.2+ support
Works with Bluetooth and wired speakers
Two-minute setup process
Available in English and Turkish
What makes it different
Files stay on your device with no server uploads
No installation, plugin, or account signup required
Works offline after initial page load
Processes audio at full CPU speed locally in browser
Conversion starts immediately without upload delays
All audio remains on your computer with no data collection
Works with untreated rooms without replacing acoustic treatment
Unboom