🎵 Audio Tools
Free Online Audio Tools
Cut, merge, compress, convert, record, change speed and boost volume — all free and browser-based using the Web Audio API. Your audio files never leave your device.
7Free Tools
0Server Uploads
100%Private & Free
All Audio Tools
Audio Cutter
Trim MP3, WAV and OGG files with waveform preview. Drag handles to set start/end points and download the clip.
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Audio Merger
Concatenate multiple audio files into one. Reorder tracks before merging. Outputs WAV.
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Audio Compressor
Reduce audio file size by downsampling to a lower sample rate. Choose from 8–44.1 kHz output.
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Audio Converter
Convert audio files between formats. Input any browser-supported format, output as WAV at chosen sample rate and bit depth.
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Audio Recorder
Record audio from your microphone directly in the browser with live waveform visualization. Download as WAV.
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Audio Speed Changer
Speed up or slow down audio from 0.25× to 4× using OfflineAudioContext playback rate. Download as WAV.
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Audio Volume Booster
Amplify or reduce audio volume using a GainNode. Boost up to 10× or reduce to 0.1×. Download as WAV.
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Why Use ToolZeel Audio Tools?
⚙️ Powered by Web Audio API
- All processing uses the browser's native Web Audio API
- AudioContext decodes MP3, WAV, OGG, AAC, FLAC natively
- OfflineAudioContext for fast non-real-time processing
- WAV output ensures lossless quality preservation
- No files uploaded — everything stays on your device
🎵 What You Can Do
- Cut a ringtone from a song or podcast clip
- Merge multiple interview recordings into one file
- Reduce audio file size for email or web
- Record voice memos directly in the browser
- Speed up lectures for faster listening
- Boost quiet audio recordings to a usable volume
- Convert between any browser-supported audio formats