Professional-grade audio editing tool for changing pitch and speed. Free, secure, and works entirely in your browser.
Or click to browse (MP3, WAV, OGG, M4A supported)
Welcome to the most advanced free online audio pitch and speed changer available in 2025. Our professional-grade audio editing tool allows you to modify pitch, adjust playback speed, and transform your audio files directly in your web browser without any software installation or file uploads to external servers.
An audio pitch changer is a powerful tool that modifies the frequency of sound waves in an audio file, allowing you to make voices sound higher or lower, transpose music to different keys, or create unique audio effects. Unlike simple speed adjustments that affect both pitch and tempo, a dedicated pitch shifter can change the pitch while maintaining the original duration of your audio.
Adjust pitch from -12 to +12 semitones with precise control. Perfect for music transposition, voice modification, and creative sound design.
Change playback speed from 0.25x to 4x without affecting pitch quality. Ideal for learning music, language study, or audio analysis.
All audio processing happens locally in your browser. Your files never leave your device, ensuring complete privacy and security.
Download your modified audio files with all changes applied. Compatible with all major audio formats including MP3, WAV, and OGG.
Hear your changes instantly with real-time audio playback. Make adjustments on the fly and find the perfect sound.
Fully responsive design works on desktop, tablet, and mobile devices. Edit audio anywhere, anytime.
Step 1: Upload Your Audio File - Click the upload zone or drag and drop your audio file. We support MP3, WAV, OGG, M4A, and most other common audio formats.
Step 2: Adjust Pitch - Use the pitch slider to shift your audio up or down by semitones. Positive values increase pitch, negative values decrease it. One semitone equals one piano key.
Step 3: Modify Speed - Adjust the playback speed slider to change how fast or slow your audio plays. This is independent of pitch changes.
Step 4: Preview and Fine-tune - Click play to hear your changes in real-time. Make adjustments until you achieve the desired sound.
Step 5: Download - Once satisfied, click the download button to save your modified audio file to your device.
Music Production and Transposition: Musicians and producers use pitch changers to transpose songs to different keys, match vocal ranges, or create harmonies. Our tool is perfect for adjusting backing tracks, practicing with different keys, or creating mashups.
Voice Modification: Content creators, podcasters, and video producers use pitch shifting to modify voice characteristics, create character voices, or anonymize audio recordings while maintaining natural sound quality.
Language Learning: Students and language learners benefit from speed control to slow down audio for better comprehension or speed it up for advanced practice, all while maintaining pitch clarity.
DJ and Remix Work: DJs use pitch and speed control to beatmatch tracks, create smooth transitions, and produce unique remixes. Our tool provides professional-grade control for creative mixing.
Audio Restoration: Correct pitch issues in recordings, fix playback speed problems, or restore audio that was recorded at the wrong speed or pitch.
Karaoke and Practice: Adjust song keys to match your vocal range for karaoke practice, or slow down fast passages in music to learn difficult sections.
Pitch is measured in semitones (also called half-steps). There are 12 semitones in an octave. Common musical intervals include:
Speed control allows you to change how fast audio plays without affecting its pitch. This is accomplished through sophisticated time-stretching algorithms:
Our audio editor uses advanced Web Audio API technology to provide professional-quality audio processing directly in your browser. The tool implements:
Your audio files are never uploaded to any server. All processing occurs locally in your web browser using JavaScript and the Web Audio API. This means:
Our audio pitch and speed changer supports all major audio formats including MP3, WAV, OGG, M4A, AAC, FLAC, and more. The tool automatically detects your file format and processes it accordingly, maintaining the highest possible audio quality throughout the editing process.
Is this tool completely free? Yes, our audio pitch and speed changer is 100% free with no limitations, hidden fees, or subscription requirements.
Do I need to install any software? No, this is a web-based tool that works entirely in your browser. No downloads or installations required.
Are my files uploaded to a server? No, all audio processing happens locally on your device. Your files remain completely private.
What's the maximum file size? Since processing happens locally, the limit depends on your device's available memory. Most devices can handle files up to several hundred MB.
Can I use this for commercial projects? Yes, you can use the modified audio files for any purpose, including commercial projects. However, ensure you have the rights to the original audio.
Does changing pitch affect audio quality? Minor pitch shifts (±5 semitones) typically maintain excellent quality. Larger shifts may introduce some artifacts, though our algorithms minimize this.
This tool leverages the powerful Web Audio API, a modern browser technology that provides sophisticated audio processing capabilities. The Web Audio API allows for real-time audio manipulation, effects processing, and synthesis entirely within the browser environment, making professional-grade audio editing accessible to everyone without expensive software.
Whether you're a musician, content creator, language learner, or just someone who needs to modify audio files, our free online audio pitch and speed changer provides professional results with an intuitive interface. Upload your file above and start editing in seconds!