SoundTools is a free, privacy-first collection of 44 audio and voice tools that run directly in your browser. Edit, convert, clean, analyze, synthesize, and transform sound without creating an account or uploading your files.

What you can do

• Trim, join, convert, reverse, compress, normalize, and boost audio
• Add reverb, EQ, pitch, tempo, slowed + reverb, 8D audio, and other effects
• Remove noise, separate vocals or stems, transcribe speech, and generate natural speech
• Record audio, test microphones, detect BPM, build soundboards, and more

Private by design

Audio processing happens on your device. SoundTools has no media upload endpoint, and model-backed tools only download the runtime they need when you start them. Your audio stays inside the browser tab.

SoundTools is free to use, requires no signup or installation, and works across modern browsers. Choose a tool, preview the result, and download the finished file.

Try it at soundtools.online.