StudioWavePro — Online Audio Editor with 48+ Studio Tools

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StudioWavePro’s Audio Looper takes a sound and repeats it: drag a region on the waveform to loop just that section, or skip the selection to repeat the entire file. Set the repeat count (1–32×) and the panel shows the exact output length before you commit. Copies are placed back-to-back with sample accuracy — no gaps, no drift, no re-encoding between repetitions.

This turns short material into long material in seconds: a 4-bar drum groove becomes a full-length practice backing, a 30-second rain recording becomes a 16-minute sleep ambience, a sound-effect bed becomes long enough to cover an entire scene. Pair it with the Fade tool afterwards to give the final file a smooth entrance and exit.

When to use

Turn a riff or chord progression into a long practice loop for an instrument.
Extend ambience — rain, fireplace, white noise — into sleep- or focus-length files.
Repeat a drum groove into a full backing track to play over.
Stretch a music bed to cover a long video scene or slideshow.
Build a meditation or workout track from one short musical phrase.
Loop a hook repeatedly to study its details by ear.

How to use

Click "Open Audio Looper" below to launch the editor.
Drop in any audio file — MP3, WAV, OGG, M4A and FLAC are all supported.
To loop only part of the track, drag a selection on the waveform — the panel shows whether the loop source is the selection or the full track, and its length.
Set the repeat count (1–32×); the total output length updates live.
Click Apply, then download the looped file as WAV or MP3.

Tips

For seamless loops, the selection boundaries matter more than anything: start and end on a beat, ideally at quiet moments. If the joint clicks, nudge the selection edges slightly.
Trim silence off your source first (Silence Trimmer) — leading or trailing dead air inside a loop becomes a stuttering pause at every repeat.
After looping, add a Fade in/out so the long file doesn’t start and stop abruptly.
Need more than 32 repeats? Loop once at 32×, then run the result through the Looper again — 32 × 32 covers anything.
For practice loops at slower speed, loop first, then run the file through Speed in keep-pitch mode — or the other way around, both work.

Frequently asked questions

How do I loop a song or sound online?: Open the Audio Looper, drop in the file, optionally drag a selection on the waveform to loop just that part, choose how many repeats (1–32), and click Apply. Download the result as one continuous MP3 or WAV.
Can I loop just one section instead of the whole file?: Yes — drag a region on the waveform and the looper uses only that selection as the source. The panel confirms what is being looped ("Selection" vs "Full track") and shows its length before you apply.
Will there be gaps or clicks between repeats?: The copies are joined sample-accurately with zero gap. Whether the joint is audible depends on your source: if the selection ends at a different level than it starts, you may hear a tick. Choosing boundaries at quiet moments or on the beat fixes it — and is what makes professional loops feel seamless.
How many times can I repeat the audio?: Up to 32× per pass, and you can run the tool again on its own output for effectively unlimited length. The panel always shows the output duration before you commit, so you can hit an exact target length.
How do I make a 10-minute rain/white-noise file from a short clip?: Load the clip, trim any silence at its edges with the Silence Trimmer, then loop it enough times to pass 10 minutes (e.g. a 30-second clip × 20). Finish with Fade both so the file eases in and out. Total time: about two minutes of work.
Does looping reduce audio quality?: No — repeats are bit-identical copies of the source placed end-to-end; there is no re-encoding or processing between them. Export as WAV for a completely lossless result.

StudioWavePro is a complete audio editor with 48+ studio-grade tools in one workspace. Trim, master, EQ, time-stretch, denoise, remove vocals, detect BPM and musical key, generate metronomes, and more. Editing tools

Audio Trimmer — crop a track to a selected region

Mute Section — silence a selected region

Reverse Audio — play the track backwards

Fade In/Out — ramp volume at start or end

Silence Trimmer — strip leading and trailing silence

Silence Gap Inserter — insert silence at a chosen position

Audio Looper — repeat a section N times

Audio Splitter — cut a track into multiple parts

Audio Merger — join multiple files end-to-end

Silence Splitter — auto-split at silent gaps

Crossfade Joiner — join clips with overlapping fades

Time and pitch

Speed Changer — speed up or slow down (with optional pitch preservation)

Pitch Shift — change pitch without changing tempo

Tempo Detector — estimate the BPM of a music track

Key Detector — estimate the musical key

Metronome Generator — create a click track at any BPM

Effects

Volume — make a track louder or quieter

Bass Boost — lift the low end

Treble Boost — lift the high end

Low Pass Filter — cut off high frequencies

High Pass Filter — cut off low frequencies (remove rumble)

Equalizer (3-band) — low / mid / high tonal shaping

Equalizer (10-band) — fine-grained tonal control

Echo — add repeating echoes / delay

Distortion — overdrive, fuzz, and lo-fi grit

Stereo Balance — shift the L/R center of a stereo mix

Stereo Widener — make stereo narrower or wider

Vocal Remover — karaoke (center-channel removal)

Hum Remover — strip 50/60 Hz mains hum

Mastering and analysis

Normalize — maximize volume without clipping

Compressor — even out loud and quiet parts

Loudness Meter — measure peak, RMS, and LUFS

Mono Converter — collapse stereo to mono

Channel Extractor — pull L, R, Mid, or Side

Sample Rate Converter — resample to 44.1, 48, or 96 kHz

Polarity Inverter — flip waveform for phase alignment

DC Offset Remover — center waveform around zero

Audio Visualizer — render an animated video from audio

StudioWavePro supports MP3, WAV, OGG, M4A, and FLAC files. Exports include WAV and MP3. This app requires JavaScript to run. Please enable JavaScript in your browser.