Audio Processing Tools

A free, professional online audio compressor supporting many input formats with both lossy compression and lossless conversion modes. Customize bitrate, sample rate and channels, all processed locally in your browser to protect your privacy.

Record audio from your microphone right in the browser. Start, pause and stop, view timed recordings, play them back and download as WebM or OGG.

Trim audio files online with a visual waveform. Drag the sliders to set start and end times, preview the selection, and export the trimmed clip as WAV or MP3.

Adjust or boost the volume of any audio file in your browser. Set the gain from 0% to 400%, optionally normalize peaks, then export as WAV or MP3.

Speed up or slow down any audio file in your browser. Adjust playback from 0.5x to 2x, preview it instantly, and export the result as WAV or MP3.

Join several audio files into one in your browser. Add two or more tracks, reorder them with up/down controls, then merge them in sequence and export a single WAV — all processed locally without uploading.

Change the speed and pitch of any audio in your browser. Adjust playback speed and transpose the pitch in semitones independently, preview the result, then export it as a WAV — all processed locally without uploading.

Free online audio waveform generator: turn any MP3, WAV or OGG file into a clear waveform image with adjustable zoom and colors, then export it as a PNG. Processed locally, never uploaded.

Free online audio mixer: add multiple audio files, adjust each track’s volume, and mix them into one combined track, export as WAV. Everything is processed locally in your browser and never uploaded.

Free online audio BPM detector: estimate a track’s tempo in beats per minute for music production and editing. Runs fully in your browser — processed locally, never uploaded.

Convert audio files between popular formats right in your browser. Re-encode to WAV or MP3, choose bitrate and channels, then download — no upload required.

Convert text into natural speech in your browser. Choose a voice and language, fine-tune rate, pitch and volume, then play or pause it aloud instantly.

Free online audio silence cutter: automatically detect and remove silent parts to shorten a recording, with adjustable threshold and minimum length. Export as WAV — processed locally, never uploaded.