AuditiusFree audio tools in your browser
Edit, convert, normalize, change speed, separate vocals, record, transcribe and generate speech on your own device. No account, no editor session and no uploads.
- Video to MP3: extract audio from any videoExtract the audio from MP4, MOV or WebM videos and download it as MP3. Free, no account, and your video never leaves your device: it is converted in your browser.
- Compress audio online to the size you needCompress WAV, MP3, M4A or FLAC audio to a target size in MB or a chosen bitrate. Free, no account: your files never leave your device.
- Turn text into natural speech onlineTurn English or Spanish text into natural speech with Kokoro and Piper voices. Adjust speed, listen in your browser and download WAV or MP3 for free.
- Transcribe speech to text without uploading filesTranscribe audio or video to text with Whisper in your browser. Choose Base or Small, then download the transcript as TXT or timed subtitles in SRT and VTT format.
- Trim audio online in your browserCut a song, voice note or recording by choosing exact start and end times. Preview and download a new WAV file locally, with no account or uploads.
- Join multiple audio files into oneJoin songs, voice notes and recordings in the order you choose. Combine them into one WAV in your browser, with no account and no files uploaded.
- Convert audio formats without uploadingConvert audio and video soundtracks to MP3, WAV, FLAC or Ogg Vorbis in your browser. Choose the format and quality, with no account or uploads.
- Normalize audio volume to a target peakNormalize a recording to a target peak between -30 and 0 dB. Balance its overall level and download a WAV locally, with no account or uploads.
- Change audio speed online, pitch preservedSpeed up or slow down songs, podcasts and voice notes from 0.5x to 2x without changing pitch. Download WAV locally, with no account or uploads.
- Separate voice and accompaniment onlineSeparate a song into vocals and accompaniment with Demucs in your browser. Listen to and download both WAV stems, with no account or uploads.
- Record voice from your microphoneRecord your microphone in the browser, listen to the result and download a WAV. No account, no installation and no audio uploaded to a server.
- Create a ringtone with custom fadesCreate a ringtone from a song or recording: choose the exact fragment, add fades and download MP3 or WAV locally, with no account or uploads.