Free Online Audio Tools

Audio Trimmer / Cutter

Trim any audio file to a precise start/end range and export as WAV — visual waveform display, no upload.

Audio Format Converter (MP3 ? WAV)

Convert audio files between MP3 and WAV formats in your browser — MP3 encoding via lamejs.

Audio Volume Normalizer

Analyze peak and RMS levels, apply gain to normalize volume, and export as WAV — all in your browser.

Text to Speech

Convert text to spoken audio using your browser's built-in Web Speech API — choose voice, rate, and pitch.

Speech to Text

Transcribe speech from your microphone using the browser's Web Speech API — real-time transcript, copy to clipboard.

Audio Merger

Combine multiple audio files sequentially into one WAV file — Web Audio API buffer concatenation, no upload.

Silence Remover for Audio

Detect and remove silent segments from audio using Web Audio API analysis — export as WAV.

Audio Waveform Image Generator

Generate a styled waveform image from any audio file — bars, line, or mirror style, downloadable as PNG or SVG.