Audio editor
Trim, fade, normalize and convert sound, make ringtones and take it out of videos, many files at once, on your device.
Free, private, in your browser
Free audio tools
Trim and join sound, convert it, make it louder or quieter, take out background noise, record your voice, write down what was said, and have text read aloud, all on your device.
No account, no limits on use, and your files never leave your device: each tool runs in the browser.
The tools
Transcribe audio
Turn speech in audio or video into text, subtitles or a Word file with Whisper on your device: follow it word by word and correct it.
Text to speech
Turn text into natural speech with a voice that runs on your device: listen, then save it as MP3 or WAV with subtitles.
How to, step by step
- Free text to speech with natural voices, no sign-up
Turn text into natural speech in your browser with Kokoro, an open voice model: listen while it is made, then save it as MP3 or WAV with subtitles.
- Convert text to MP3 free, with no character limit
Turn any text into a spoken MP3 with a natural voice that runs on your device: no account, no character limit, and nothing uploaded.
- How to transcribe a video to text, free and private
Turn the speech in an MP4, MOV or WebM video into text in your browser, with nothing uploaded: Whisper on your device, corrected by you, saved as text or Word.
- How to make an SRT subtitle file from audio or video
Make SRT or WebVTT subtitles from a video or recording in your browser, with nothing uploaded: Whisper hears it, you correct it, each line timed from the words.
- How to turn an MP3 or voice memo into text, free
Turn an MP3, an iPhone voice memo or a voice note into text in your browser, with nothing uploaded: Whisper on your device, then copy it or save it.
- Text to speech with a British accent, free
Three British English voices that run in your browser, with nothing uploaded: hear Emma, George and Fable, then save your text as MP3 or WAV.
- How to turn text into an audiobook MP3 with chapters
Turn a document into a spoken MP3 with a chapter for each heading, in your browser with nothing uploaded. Free, with natural voices and no account.
- Free online audio editor: cut, fade and clean up MP3
Edit audio in your browser with nothing uploaded: cut, fade, change the volume, take out noise, even out loudness and save as MP3, M4A, FLAC or WAV. Free.
- Convert audio free: MP3, M4A, FLAC, WAV, no upload
Convert audio between MP3, M4A, Opus, FLAC and WAV in your browser, nothing uploaded: many files at once, with tags and cover art, and which format to choose.
- MP4 to MP3: extract audio from a video, free, no upload
Take the sound out of an MP4, MOV, WebM or MKV video in your browser, exactly as it is, or as MP3, M4A, FLAC or WAV. Nothing is uploaded.
- How to cut an MP3 online for free, without uploading
Cut a song, a voice note or a podcast to the part you want, to the millisecond, with fades, in your browser. Every edit can be undone. Nothing is uploaded.
- How to make an iPhone (M4R) or Android ringtone, free
Make an iPhone ringtone (M4R, up to 40 seconds) or an Android one (MP3) from any song in your browser, faded at the end. Nothing is uploaded.
- How to normalize audio loudness to −14 LUFS online for free
Normalize loudness to −14 or −16 LUFS in your browser, nothing uploaded: what LUFS and true peak are, which to choose, and many files at once without clipping.
- How to make an audio file louder without clipping
Make a quiet recording, song or video's sound louder in your browser. Why turning it up can make it crackle, and how a limiter stops that. Nothing is uploaded.
- How to split an audio file into parts online for free
Split a long recording, podcast, lecture or mix into parts in your browser: every few minutes, into equal parts, at markers or at pauses. Nothing is uploaded.
- How to join or merge audio files into one online for free
Join MP3, M4A, WAV and other sound files into one in your browser, in your order, straight on, with silence or crossfades, with chapters. Nothing is uploaded.
- How to speed up or slow down audio without changing pitch
Change a recording's speed without changing its pitch, or its pitch without its length, in your browser. Also reverse and karaoke. Nothing is uploaded.
- How to remove background noise from audio for free
Take hiss, fans, traffic, hum, clicks and harsh "s" sounds out of voice recordings in your browser, with RNNoise on your device. Nothing is uploaded.
- How to edit MP3 tags and add album art for free
Change the title, artist, album, lyrics and cover of MP3, M4A, FLAC, Ogg, Opus and WAV files in your browser, many at once, without encoding again. No uploads.
- How to record audio online from your microphone for free
Record from a microphone in your browser, with pause, a level meter and no call filters unless you want them, then save MP3, M4A or WAV. Nothing is uploaded.
- How to transcribe audio to text, free, without uploading
Turn speech in a recording, interview or video into text, subtitles or Word with Whisper in your browser, nothing uploaded, then follow it and correct it.
- How to turn audio into a video with a picture for free
Turn a song, podcast clip or voice note into an MP4 with a picture, a moving waveform and its title in your browser, to share where only video goes. No uploads.
- Why does a converted MP3 start with silence?
MP3 and AAC encoders add a few hundredths of a second of silence to every file: why it happens, when it matters, and how a file can say how long its sound is.