Powerful Audio & Video Tools
Everything you need to convert, transcribe, generate, and transform your media files — all in your browser.
Audio Converter
Convert audio files between formats with precision. Support for MP3, WAV, FLAC, OGG, AAC, and more. Adjust bitrate, sample rate, and channels to match your needs.
- 20+ audio formats
- Batch conversion
- Quality control
- Metadata preservation
Transcription Studio
Transform speech into text using advanced AI. Powered by OpenAI Whisper, our transcription engine delivers accurate results across multiple languages.
- 99+ languages
- Speaker detection
- Timestamps
- Export to SRT/VTT
Voice Generator
Create natural-sounding voiceovers from text. Choose from a variety of voices and languages to bring your content to life with AI-powered text-to-speech.
- Multiple voices
- Natural intonation
- Adjustable speed
- High-quality output
Stem Splitter
Isolate vocals, drums, bass, and other instruments from any track. Powered by Demucs AI, extract individual stems for remixing, sampling, or karaoke.
- Vocals isolation
- 4-stem separation
- AI-powered
- Lossless quality
Audio Joiner
Merge multiple audio files into a single track. Add silence gaps or crossfades between clips for seamless transitions in your podcasts, music, or audiobooks.
- Unlimited clips
- Crossfade effects
- Gap insertion
- Format flexibility
Video Studio
Process video files with powerful transcoding capabilities. Extract audio, convert formats, and optimize your video content for any platform.
- Video transcoding
- Audio extraction
- Format conversion
- Web optimization
Why Choose DefyAudio?
Built with privacy and performance in mind.
100% Private
All processing happens locally in your browser. Your files never leave your device.
Lightning Fast
Powered by WebAssembly and AI models running directly on your hardware.
Works Anywhere
No installation required. Access from any modern browser on any device.
No Upload Needed
Your data stays with you. No cloud storage, no servers, no privacy concerns.