Audio joiner
Join several audio files into one, in the order you choose, back to back, with a second of silence or with a crossfade. Free, no limit, nothing uploaded.
Drop the files to join
MP3 · WAV · M4A · MP4 · MOV · WEBM — up to 1 hour in all. Nothing is uploaded.
How it works
- Drop all the files onto the box above at once, or one by one with Add files. MP3, M4A, WAV, FLAC and the sound of videos all mix.
- They're listed in name order (Part 2 before Part 10). Move any of them up or down with the arrows.
- Choose what goes between them: nothing, a 1-second gap, or a 2-second crossfade. Play it to hear the joins.
- Download the whole as one MP3, M4A or WAV, free with no limit.
Between the files
- Nothing: each file starts where the one before ends. The two are crossfaded over 10 milliseconds, too short to hear, so the join doesn't click. For parts of one recording, or an album that plays without gaps.
- 1 s gap: a second of silence, for separate recordings such as chapters, answers or voice notes.
- Crossfade: the end of one fades out as the next fades in, over 2 seconds, for songs in a mix.
Files that don't match
The files don't have to be alike. Each one is decoded and brought to 48 kHz, so an MP3 from a phone can follow a WAV from a recorder. A mono file plays in both channels when another is stereo, and the result is stereo.
If one file is much quieter than the others, bring it up with the volume booster or the loudness normalizer first, then join.
Questions
Are my files uploaded anywhere?
No. AudioRinse joins them inside your browser, on your own device. Your files never leave it, so there's no upload to wait for and nothing stored on a server.
Is it free?
Yes, with no limit, no account and no watermark. AudioRinse earns from its cleaning tools.
How many files can I join?
As many as you like, up to 1 hour in all. On a computer with little memory the page takes less, and says which files it couldn't add.
Can I trim a file before joining it?
Cut it in the audio cutter first, download it, then add the cut file here.
Does joining lower the quality?
A WAV loses nothing. An MP3 or M4A is encoded once, at 192 kbps, more than most MP3s are made at.
Other tools
- Audio cutterKeep the part you need, or cut one out.
- MP3 cutterAn MP3 cut to the part you need, saved as MP3.
- Audio trimmerThe start and end trimmed off a recording.
- Ringtone makerAny song as an iPhone or Android ringtone.
- Merge MP3 filesSeveral MP3s merged into one.
- Remove background noise from audioFans, traffic, hiss and room noise out of a voice recording.
- Remove background noise from videoClean a video's soundtrack. The picture is kept untouched.
- Voice isolatorKeep only the voice; everything else goes.
- Audio enhancerNoise removal + voice EQ + loudness, in one step.
- Voice enhancerClearer, fuller, evenly loud voice.
- Remove reverb from audioLess room, more voice: for recordings made in echoey rooms.
- Remove echo from audioFix the hollow, echoey sound of a big or empty room.
- Remove buzz and hum from audioElectrical buzz and hum out; the voice or music around it untouched.
- Remove silence from audioDead air out: every long pause cut to a set length.
- De-esserHarsh S sounds softened; the voice keeps its brightness.
- Fix clipped audioFlattened, crackly peaks from recording too loud, rebuilt.
- Mouth click removerLip smacks and tongue clicks out of a voice-over.
- Normalize audioPodcast, YouTube or broadcast loudness, true-peak safe.
- Volume boosterQuiet audio or video made louder, without clipping.
- MP3 volume boosterA quiet MP3 made louder, saved as an MP3 again.
- Increase video volumeA quiet video made louder; the picture stays as it is.
- Online voice recorderRecord from your microphone; download MP3 or WAV, or clean it up.
- Remove vocals from a songThe vocals out of a song: a clean instrumental, and the acapella too.
- Vocal isolatorThe singing alone from any song, separated on your computer.
- Split a song into stemsVocals, drums, bass and the rest, each on its own track.
- Remove music from a videoBackground music out of a video, or turned down; the voices stay.
- Make a karaoke version of a songAny song as a karaoke track: the vocals out, the band left.
- Extract the vocals from a songThe vocals alone from any song: an acapella for remixes and covers.
- Make an instrumental of a songThe instrumental version of any song, the vocals taken out.
- Remove the drums from a songThe drums out of a song, for drummers to play along.
- Find the BPM of a songThe tempo of any song, with its key and Camelot code.
- Find the key of a songThe key of any song, with its Camelot code and tuning.
- BPM and key finderTempo, key and Camelot for a whole folder of songs, as a CSV.
- Tap tempoTap along on each beat and read the BPM.
- Camelot wheelWhich keys mix: pick one, or drop your songs onto the wheel.
- Pitch changerRaise or lower the pitch in semitones; the speed stays the same.
- Change the key of a songFinds the song's key, then moves it to the key you pick.
- Change the speed of audioSlow down or speed up, from 0.5× to 2×, at the same pitch.
- 432 Hz converterRetunes a song to A = 432 Hz, at the same speed.
- Voice changerDeeper, higher, robot or chipmunk, on any recording.
- Audio to sheet musicA piano recording written out as a two-hand score.
- MP3 to sheet musicAn MP3 of piano music, written out as a printable score.
- Piano transcriptionPiano playing written out, both hands, in seconds.
- Video to MP3The sound of any video as an MP3. Free, no limit.
- MP4 to MP3Any MP4's sound as an MP3, in seconds.
- Video to audioAny video to MP3, M4A or WAV. Free, no limit.
- MOV to MP3iPhone and QuickTime videos to MP3.
- MP4 to WAVUncompressed WAV from any MP4, for editing.
- WebM to MP3WebM video or audio to MP3.
- MKV to MP3OBS recordings and MKV films to MP3.
- Extract audio from videoA video's sound track as a file, in its original quality.
- Remove audio from videoThe same video with its sound track taken out; the picture untouched.
- Mute a videoSilence a video for good: the sound track out, the picture as it was.
- M4A to MP3Voice memos and iTunes songs as MP3.
- WAV to MP3WAV to MP3 at a fraction of the size.
- MP3 to WAVMP3 to uncompressed WAV, for editing.
- M4A to WAVVoice memos and M4A to uncompressed WAV.
- OGG to MP3Ogg Vorbis, Opus and voice messages to MP3.
- FLAC to MP3Lossless FLAC to MP3, tags and cover kept.
- Transcribe audio to textAny recording to text, transcribed on your computer.
- Convert audio to textSpeech in any audio file, converted to text on your device.
- Convert MP3 to textAn MP3's speech as text, with timestamps.
- Transcribe a video to textWhat's said in a video, as a timestamped transcript.
- Convert video to textSpeech in any video, converted to text on your device.
- Add subtitles to a videoAuto subtitles, edited in place, burned in or as SRT.
- Auto captions for your videoCaptions for reels and videos, styled and burned in.
- Generate subtitles automaticallyTimed SRT and VTT subtitles from any video.
- Song to lyricsA song's words, transcribed from its vocals.
- Interview transcriptionSpeaker-labelled transcripts, made on your computer.
- Transcription for qualitative researchInterviews and focus groups, ready for NVivo and MAXQDA.