About ChangerAudio

What is ChangerAudio?

ChangerAudio is a comprehensive suite of free online audio modification tools that allows you to change various aspects of your audio files directly in your browser. No uploads, no installations, 100% privacy-focused.

Current Tools

Pitch Shifter

Change the pitch of your audio without affecting the tempo. Includes 6 classic presets (Chipmunk, Deep Voice, Helium, Darth Vader, Slight +, Slight -) and custom pitch adjustment from -12 to +12 semitones.

Coming Soon

Tempo Changer - Speed up or slow down audio without changing pitch
Reverse Audio - Play your audio backwards for creative effects
Volume Booster - Increase audio volume without distortion
Audio Normalizer - Balance audio levels across your files
EQ Adjuster - Modify frequency bands for custom sound
And more tools in development...

Technology

ChangerAudio is built with modern web technologies for optimal performance and privacy:

Web Audio API - For real-time audio processing across all tools
OfflineAudioContext - For high-quality export without quality loss
Canvas API - For waveform visualization
Vanilla JavaScript - No frameworks, pure performance
Client-Side Processing - All audio stays on your device

Key Features

Real-time Preview - Hear changes instantly before exporting
Multiple Presets - Quick apply popular effects with one click
Export to WAV - Download your modified audio in high quality
Privacy-First - All processing happens in your browser
Free Forever - No signup, no watermarks, no limits
Dark/Light Theme - Choose your preferred visual style
Works Everywhere - Desktop, mobile, tablet. No installation required

Supported Formats

ChangerAudio supports multiple audio formats for input and export:

Input: MP3, WAV, FLAC, OGG, M4A
Export: WAV (lossless)

Privacy Commitment

Your privacy is our priority. Unlike other audio tools, ChangerAudio never uploads your files to any server. All audio processing happens 100% locally in your browser using Web Audio API. Your files never leave your device.

Contact

Have questions, suggestions, or bug reports? Reach out to us at support@changeraudio.com.