Audio
Audio tools: convert, trim, normalize, merge, text-to-speech and speech-to-text.
Convert audio
Convert audio between MP3, WAV, OGG, FLAC, AAC and M4A — including WAV/PCM 16-bit and G.711 (A-law/µ-law) for phone systems (PBX, 8/16 kHz).
Trim audio
Trim an audio file online and free — select a start and end time in seconds and download the clipped section as MP3, WAV or OGG. No sign-up needed.
Normalize loudness
Normalize audio loudness online and free — even out volume differences using EBU R128/loudnorm and download the result as MP3 or WAV. No sign-up needed.
Audio from video
Extract the audio track from a video file online for free — upload MP4, WebM, MOV, MKV or AVI and download the soundtrack as MP3. No sign-up required.
Merge Audio
Merge several audio files into one (in the chosen order) — server-side via ffmpeg.
Text to Speech
Have the browser read text aloud (Web Speech API) — choose voice, rate and pitch. Runs locally, no upload.
Speech to Text
Turn microphone speech into text (Web Speech API). Runs in the browser — works best in Chrome/Edge.