Audio Looper

EchoWave's audio looper repeats any track or trimmed section as many times as you need, right in your browser. Upload an MP3, WAV or M4A, set your loop points on a visual waveform, and duplicate until you hit your target length. Beat detection snaps cuts to the downbeat and short fades smooth the join, so the repeat is hard to hear. Drop the loop under a video, or export it free as an HD MP4 with a small watermark badge; audio-only files come with paid plans.

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Audio Looper Features

EchoWave's audio looper is used by students, meditation teachers, game developers and video creators around the world.

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Loop audio online

An audio looper inside a full editor

Most loop tools repeat a file a few times and hand it back. EchoWave puts the loop on a multi-track timeline, so you can trim to the exact bars you want, snap cuts to a beat grid, fade the join, and stack other sounds on top. Need the same treatment for footage? Use the video looper. For deeper cleanup, open the full audio editor.

  • 93

    music visualizer styles

  • 30

    sound effect packs

  • 63

    AI voice over voices

  • 4K

    max export resolution on Pro

Why EchoWave

Loop tools that go past simple repeat

Everything you need to build a loop that holds up on the tenth listen, then put it to work.

  • An audio looper with precise repeats

    Duplicate a clip twice or two hundred times and watch the total duration update as you go. Copy and paste along the timeline until you hit a set count or a target length, like one hour of focus music. Nothing is re-encoded until you export, so every repeat stays exact.

  • Trim before you loop

    Loop the best eight bars instead of the whole song. Drag the clip edges on the waveform to isolate a section, or use the audio trimmer workflow to cut with frame-level precision. A tight source clip is the difference between a loop that flows and one that drags.

  • Beat detection with snap-to-beat

    EchoWave scans your track and lays a beat grid across the timeline. Cuts snap to the nearest beat, so your loop starts and ends on a downbeat and the repeats stay in time. This is the single biggest fix for loops that feel like they stumble at the join.

  • Fade the seam

    A click at the join usually means the cut landed on a loud peak. Add a short fade out at the end of each repeat and a matching fade in at the start, and the join disappears. Preview playback in the editor to check the seam before you commit.

  • Loop audio under a video

    Drop the looped bed on a track beneath your footage for a study stream, an ambient scene or a product demo. Add one of 93 music visualizer styles on top if the sound needs a face. Picture and audio live on the same timeline, so nothing drifts.

  • Join and layer tracks

    Chain different files end to end with the audio joiner, or stack rain under a piano loop on separate tracks. A categorized sound effects panel with 30 SFX packs is built in for extra texture.

  • Change speed or reverse the loop

    Slow a practice loop to 0.25x, push an ambient bed to 4x for a texture experiment, or reverse a clip entirely. Speed applies per clip, so one repeat can behave differently from the next.

  • Export audio, or a finished video

    Export an HD MP4 free with a small removable EchoWave watermark badge, or go audio-only with a paid plan: MP3 and M4A from Basic, WAV and FLAC from Pro. Rendering runs on EchoWave's cloud, so a one-hour loop encodes just as fast on an old laptop as on a new machine.

How it works

How to loop audio online

Four steps from a single file to a finished loop.

  1. Upload your audio

    Drag an MP3, WAV or M4A into the editor, or capture something on the spot with the built-in voice recorder. The waveform appears on the timeline so you can see the structure of the track at a glance.

  2. Trim to the section you want

    Drag the clip edges to isolate the part worth repeating. Turn on beat snapping so both cuts land on a downbeat, which keeps the repeat in time with itself.

  3. Repeat it

    Copy and paste the clip along the timeline until you reach your count or target duration. Add a short fade at each join, then hit play and listen through a few repeats to check the seam.

  4. Export and download

    Export an HD MP4 free, with a small removable watermark badge and a short branded end card. Audio-only MP3, M4A, WAV and FLAC downloads come with paid plans, which also remove the badge. The cloud render farm handles the encoding, then your file is ready to download.

Made for

What people loop

  • Study and focus sessions

    Turn a 3 minute lofi track into an hour of background sound with no jarring restarts. Fade each join and the repeat sinks into the background where it belongs.

  • Meditation and sleep beds

    Loop rain, chants or a slow pad to the exact length of a session. Long, gentle fades at each join keep the bed unbroken from start to finish.

  • Game dev ambience

    Build looping tavern noise, engine hum or dungeon drones for your game. Cutting at a quiet point and fading the seam keeps the loop from clicking on every cycle.

  • Background music for videos

    Your track runs 40 seconds and the video runs 4 minutes. Loop the music under the footage and lower its volume beneath a voice over, recorded with your own mic or one of 63 AI voices.

  • Practice and transcription

    Isolate a solo, loop it, and slow playback to as little as 0.25x without leaving the browser. Bring the speed back up as the passage gets under your fingers.

  • Intros and stream scenes

    Loop a short sting or ambient bed behind a starting-soon screen or podcast intro. Export it once at the length you need and reuse the same file across every episode or stream.

Compare

How EchoWave compares

Feature EchoWaveVEEDKapwingAudacity
Runs in the browser, nothing to install Yes Yes Yes No
Loop a trimmed section of a track Yes Yes Yes Yes
Beat detection with snap-to-beat Yes No No No
Multi-track timeline for layering Yes Yes Yes Yes
Loop audio under video footage Yes Yes Yes No
Music visualizers yes (93 styles) Yes Yes No
AI voice over yes (63 voices) Yes Yes No
DAW-style effects (EQ, compression, reverb) No No No Yes
Stock music library no (SFX packs only) Yes Yes No
Works offline No No No Yes
Free downloads yes (720p MP4, watermark badge; audio-only needs a paid plan) yes (limits) yes (limits) Yes
4K video export yes (Pro) yes (paid) yes (paid) No

Based on each tool's public pages as of July 2026. Features and pricing change, so check current plans before you commit.

Loop it once, use it everywhere

EchoWave is free to use in any modern browser on Mac, Windows, Linux and Chromebooks, and the free plan exports your loop as an HD MP4 with a small removable watermark badge. Paid plans remove the badge and add audio-only downloads, from MP3 on Basic to WAV and 4K video on Pro.

Loop your audio

How creators use EchoWave in real projects

EchoWave

About the EchoWave team

EchoWave is a browser-based video and audio editor built by Lemon Vault LLC since 2018. The people who build the editor write these guides and test every step in the production app before publishing.

Audio Looper FAQ

How do I loop an audio file online?

Upload the file to EchoWave, trim it to the section you want, then copy and paste the clip along the timeline until it reaches your target length. Preview it, then export as MP3, M4A, WAV or FLAC. Everything runs in your browser, so there is nothing to install.

How do I make an audio loop without clicks or pops?

Clicks happen when the cut lands on a loud peak in the waveform. Cut at a quiet point, ideally on a downbeat using EchoWave's beat snapping, then add a short fade out and fade in at the join, roughly 10 to 50 milliseconds for rhythmic music and longer for ambient beds. Listen through several repeats before exporting.

Can I loop just one part of a song?

Yes. Drag the clip edges on the timeline to isolate the section, then repeat only that clip. Looping the best eight bars usually sounds better than repeating a full track whose intro and outro break the flow. Pick a stretch where the energy at the start matches the energy at the end, so each pass hands off cleanly to the next.

How do I make a song loop for 1 hour?

Divide 60 minutes by the length of your clip to get the repeat count, then paste that many copies on the timeline. A 3 minute track needs 20 copies, a 90 second clip needs 40. EchoWave renders in the cloud, so an hour-long file encodes fine even on a modest laptop, and the preview stays responsive while you build it.

Is EchoWave's audio looper free?

Yes. You can upload, trim, loop, preview and export on the free plan, which renders an HD MP4 with a small removable EchoWave watermark badge and a short branded end card. Paid plans remove the badge and add audio-only downloads in MP3, M4A, WAV and FLAC, plus higher video quality, 1080p from Basic and up to 4K on Pro.

What formats can I export a loop in?

MP4 video export is on every plan, including free, where it carries a small watermark badge. Audio-only formats need a paid plan: MP3 and M4A from Basic, WAV and FLAC from Pro. Video formats grow the same way, with WebM on Basic and MOV and GIF on Pro, and bitrate and codec controls are there if you need them.

Can I put looped audio under a video?

Yes, and this is where EchoWave beats single-purpose loopers. Loop the music on one track, place your footage above it, and trim the audio to the video's length. If the picture itself needs to repeat, EchoWave has a video looper for that.

Can I record something and loop it right away?

Yes. The built-in recorder studio captures your voice, screen or webcam, and the recording lands straight on the timeline. Trim it, duplicate it, and export, which works well for guided meditation phrases or practice drones.

Does looping reduce audio quality?

No. Duplicating a clip on the timeline is lossless because every copy references the same source file. Quality is decided once, at export, where you choose the format and bitrate. Pick WAV or FLAC on Pro if you want no loss at all.

Ready to loop your next track?

Export an HD MP4 free with a small watermark badge; paid plans remove it and add MP3, WAV and video up to 4K.

Get Started →