A browser extension providing audio FXs to the browser and that can connect to MIDI controllers
Users
945
+93 in 30 days
Rating
4.9 / 5
unchanged in 30 days
Ratings
7
0 in 30 days
Store rank
#32K
#27K among extensions
Version
1.0.0
updated 24 Sep 2025
Users
monthly, 13 months
Latest, 16 Oct 2026:945 usersMove the mouse over the chart for any month
Ratings count
monthly, 13 months
Latest, 16 Oct 2026:7 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About Sound Tools
Sound Tools - Professional Audio Effects for Your Browser
Transform your web audio experience with Sound Tools, a powerful open source Chrome extension that brings professional-grade audio effects to any website. Whether you're listening to music, watching videos, or enjoying podcasts, Sound Tools gives you complete control over your audio with real-time effects processing and MIDI controller integration.
🎵 Core Features
Real-Time Audio Effects
Apply professional audio effects to any audio or video content playing in your browser tabs. All effects process audio in real-time with zero latency, giving you instant control over your listening experience.
Universal Compatibility
Works seamlessly with all major streaming platforms, music services, video sites, podcasts, audiobooks, and any website with audio or video content. Simply navigate to your favorite site and start enhancing your audio experience.
🎛️ Professional Audio Effects
🔥 Distortion Effect
Add warmth, grit, and character to your audio with our advanced distortion processor.
Features:
• Distortion Amount: 0-100% with exponential scaling for natural progression
• Real-time curve generation: Dynamic waveshaping that responds instantly to parameter changes
• Musical distortion: Carefully tuned algorithm that maintains audio quality even at extreme settings
• Harmonic enhancement: Adds rich harmonics without harsh artifacts
Perfect for: Rock music, podcasts, adding warmth to vocals, creative audio processing
🌊 Reverb Effect
Create immersive spatial audio with our advanced convolution reverb engine.
Features:
• 20 Room Types: Instantly switch between 20 pre-computed acoustic spaces
- Tiny booth (intimate, dry sound)
- Small rooms (natural ambience)
- Medium spaces (balanced acoustics)
- Large halls (spacious reverb)
- Cathedrals (massive, ethereal spaces)
• Wet/Dry Mix Control: 0-100% blend between original and reverb signal
• Instant Room Switching: Zero-latency room size changes using our impulse response bank
• High-Quality Convolution: Professional-grade reverb processing
Perfect for: Music enhancement, creating atmosphere, spatial audio effects, immersive listening
🎚️ Dual Band Filter
Precision frequency control with our advanced dual-filter system.
Signal Chain: Input → High-Pass Filter → Low-Pass Filter → Output
High-Pass Filter:
• Frequency Range: 20Hz - 20kHz with logarithmic scaling
• Resonance (Q): 0.1 - 50 for gentle to extreme filtering
• Function: Removes low frequencies, eliminates rumble and mud
Low-Pass Filter:
• Frequency Range: 20Hz - 20kHz with logarithmic scaling
• Resonance (Q): 0.1 - 50 for gentle to extreme filtering
• Function: Removes high frequencies, tames harsh sounds
Combined Effect: Create custom frequency ranges, telephone effects, vintage sounds, or surgical EQ cuts
Perfect for: Frequency shaping, creative filtering, vintage effects, noise reduction
🎮 Advanced MIDI Controller Integration
Connect your MIDI controllers for professional hands-on audio control with our comprehensive MIDI learning system.
Core Features:
• Intelligent Device Detection: Automatically discovers and connects to MIDI controllers
• Learn Mode: Click any control and move a MIDI knob to create instant mappings
• Visual MIDI Links: See which controls are mapped with removable indicator chips
• Flexible Mappings: Support for both MIDI notes and CC messages with one-to-many relationships
• Persistent Storage: All MIDI mappings are automatically saved per device
• Per-Domain Permissions: MIDI access permissions remembered for each website
• Auto-Restore: Controllers and mappings automatically reconnect when revisiting pages
• Professional Workflow: Use physical knobs, faders, and buttons for tactile control
💾 Smart Parameter Management
Intelligent Parameter Storage
• Automatic Saving: All effect settings and MIDI mappings are instantly saved
• Cross-Context Sync: Parameters synchronized between popup and audio processing
• Per-Effect Memory: Each effect maintains its individual parameter state
• Session Persistence: Settings preserved across browser sessions and page reloads
• Device-Specific Storage: MIDI mappings saved separately for each connected device
Real-Time Control & Feedback
• Zero-Latency Updates: Parameter changes apply instantly without audio interruption
• Smooth Transitions: Professional-grade audio processing without glitches or pops
• Live Adjustment: Modify effects while audio is playing for immediate results
• Visual Feedback: Real-time parameter display and MIDI activity indicators
• Responsive UI: Interface updates instantly reflect MIDI controller movements
🎯 User Interface
Modern Interface Design
• Clean, intuitive popup: Professional design with easy-to-use controls
• Visual effect status: Clear indication of active effects with color-coded buttons
• Expandable controls: Click settings wheel to reveal parameter sliders
• MIDI Link Indicators: Visual chips show which controls are mapped to MIDI
• Responsive design: Optimized for all screen sizes and usage scenarios
Professional Control Elements
• Precision sliders: Smooth drag-and-drop operation with exact value control
• Real-time feedback: Live parameter display and visual progress indicators
• MIDI learning mode: Visual feedback during MIDI mapping creation
• Removable mappings: Click chip crosses to remove unwanted MIDI links
• Optimized performance: Fully memoized React components for smooth operation
Smart Effect Management
• One-click toggle: Enable/disable effects instantly with visual confirmation
• Independent operation: Each effect operates independently with isolated controls
• Optimized signal chain: Professional processing order (Distortion → Reverb → Filter)
• State persistence: Visual indicators reflect saved settings and active mappings
• Learn mode integration: Visual cues guide users through MIDI mapping process
🔧 Technical Excellence
Professional Audio Engine
• Web Audio API: Built on mod…
Growth
Window
Users
Change
Ratings
Rating
7 days
+24
+2.6%
0
0.00
30 days
+93
+10.9%
0
0.00
6 months
+475
+101.1%
+3
+0.11
1 year
+897
+1868.8%
+5
−0.14
Chrome Web Store search rankings
Where Sound Tools appears when people search the store, with the 30 day change