| Key features | - MP3 bitrate conversion (128, 192, 256, or 320 kbps)
- Fade-out audio with customizable duration
- MP3 compression with file size comparison
- WAV to MP3 and MP3 to WAV conversion
- Fade-in audio with preview capability
- M4A to MP3 conversion
- Audio trimming with start and end time selection
- Volume adjustment with gain in decibels
- Stereo to mono conversion
- Merge multiple audio files (2-8 files)
| - 15 playable virtual instruments including piano, guitar, drums, violin, cello, saxophone, trumpet, flute, clarinet, ukulele, harmonica, harp, kalimba, xylophone, and bass guitar
- AI voice cloning with 10-second voice sample recording for Chinese and English
- Speech-to-text transcription with support for 90+ languages and SRT subtitle export
- Stem splitter separating songs into vocals, drums, bass and other stems using Demucs model
- AI noise removal using deep neural network to clean audio from hiss, hum, wind and background noise
- Audio format conversion supporting MP3, WAV, M4A and WebM
- Audio effects including reverb, 8D audio, distortion, delay, echo, chorus, flanger, fade in/out and equalizer
- Signal generators for binaural beats, white noise, tone generation and metronome
- Audio editing with trimming, cutting, merging, reversing, normalization and compression
- Text-to-speech with 30+ AI voices in American and British English
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| What makes it different | - All processing runs locally in your browser with no server uploads
- No account or editor login required to use any tool
- Preview results before downloading your final file
- Support for multiple audio formats and codecs
- Built with open-source audio technology
| - All processing happens entirely in your browser with no server uploads and no registration required
- Complete audio workflow from raw recording to finished export with 67 free tools
- Fully translated into 14 languages with every interface element localized
- All AI tools run entirely on-device with no server cost, no upload queues, and unlimited use
- Instant access to tools with no downloads, plugins or installation required
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AudioEditorKit
Soundtool