Load your audio
Select a supported audio file from your device. Processing starts locally in your browser.
FREE ONLINE AUDIO TOOLS · CLIPSCONVERT AUDIO
Edit. Enhance.
Convert.
Free online audio tools for effects, batch processing, multitrack mixing, noise reduction, and audio visualizer videos. Processing stays in your browser by default.
✓ Browser-based effects ✓ Local WAV export ✓ Optional MP3 conversion
THE STUDIO
Make it sound like you.
NOW EDITING
No audio loaded
Choose a file to begin.
Drag across the waveform to select a section. Click once to move the playback position.
00:0000:00
EFFECT CONTROLS
Shape your sound
Trim selectionChoose a section to export
ANALYSIS & SPECIAL TOOLS
These actions use your loaded audio and run in this browser.
BPM is an estimate. Vocal removal uses center-channel cancellation and works best when vocals are centered in a stereo mix. Pitch and tempo change together in this version.
PHASE 2 · CREATOR TOOLS
Record, combine and refine
Microphone recorder
Record from your microphone and load the resulting WAV into the studio. Allow microphone access when prompted.
Ready to record · max 5 minutes
Audio joiner
Choose two or more files in the order you want them joined. Optional crossfades smooth transitions.
Select at least two audio files.
Silence remover
Detect quiet gaps and export a new WAV with long silent sections removed. The original loaded audio stays unchanged.
Load audio to detect gaps.
Mastering and loudness
Use compression for more consistent dynamics, analyze the loaded source peak/RMS level, and normalize the exported result to a peak target.
Analysis measures the loaded source, not effects output. RMS is not integrated LUFS.
PHASE 3 · ADVANCED WORKFLOWS
More control, bigger projects.
Batch-process files, build a simple multitrack mix, reduce steady background noise, or create an audio visualizer video. These tools run locally in your browser.
BATCH
Batch audio processor
Apply one preset to several tracks and download the processed WAV files in a ZIP. Files stay on this device.
Select up to 12 audio files. Output is WAV inside a ZIP.
MIXER
Multitrack editor
Layer up to 12 audio clips. Set each clip's start time, level, pan, and mute state, then render a stereo mix.
0.0s
Add one or more tracks to begin. Clips start at 0 seconds until you change their offsets.
Up to 12 tracks · maximum mix length 10 minutes.
Download mixed WAV
SPECTRAL
Advanced noise reduction
Estimate a noise profile from the beginning of a recording, then apply spectral subtraction. Use a section that contains only background noise for best results.
Local spectral subtraction · limit 90 seconds per file. Avoid choosing a profile containing speech or music.
VIDEO
Audio-to-video visualizer
Create an animated spectrum video from a song. Export is WebM, depending on browser recording support. Audio is processed locally.
Select an audio file. Maximum length 5 minutes.
Download visualizer video
Phase 3 runs locally in your browser. Batch processing outputs WAV, the multitrack mixer renders WAV, and the visualizer exports WebM when the browser supports MediaRecorder. Spectral subtraction may leave musical artifacts and is not AI source separation.
TOOLBOX
One studio. Many possibilities.
Start with a tool, then fine-tune your sound in the studio above.
3D AudioCreate a moving stereo-pan effect. Headphones recommended.↗
Auto PannerMove sound gently between left and right channels.↗
Bass BoosterAdd weight and warmth to low frequencies.↗
BPM DetectorEstimate the tempo of rhythmic audio. Results are approximate.↗
ConverterOpen supported audio and export it as a PCM WAV file.↗
DownmixerMix stereo audio down to a single mono channel.↗
EqualizerAdjust low, mid and high frequencies.↗
Noise ReducerUse a basic noise gate to reduce quiet background noise.↗
Pitch ShifterChange playback rate and pitch together. Independent pitch shift is not included.↗
ReverbAdd room ambience and reverberant tails.↗
Reverse AudioReverse the selected audio before export.↗
Spectrogram ImageRender an approximate frequency-over-time image from audio.↗
Stereo PannerPlace audio toward the left or right channel.↗
Tempo ChangerSpeed up or slow down audio; pitch changes too.↗
Trimmer / CutterExport just the start and end section you choose.↗
Vocal RemoverTry center-channel cancellation on stereo mixes. Results vary.↗
Volume ChangerRaise or lower the output level.↗
Waveform ImageCreate a downloadable waveform image from loaded audio.↗
Treble BoosterBring out brightness and definition.↗
Echo EffectCreate repeating delay and rhythmic space.↗
Stereo WidenerAdjust the stereo width of stereo recordings.↗
Audio Speed ChangerChange playback speed and pitch together.↗
Fade InBring your audio in gradually during export.↗
Fade OutFinish your audio with a smooth fade during export.↗
Audio NormalizerNormalize the rendered audio peak.↗
Lo-fi EffectDial back brightness for a mellow tone.↗
Audio CleanerUse gentle EQ and a basic noise gate.↗
WAV ExporterExport edited browser audio to 16-bit PCM WAV.↗
Pitch & SpeedAdjust playback rate and pitch together.↗
Audio RecorderRecord microphone audio and load it into the studio.↗
Audio JoinerCombine multiple audio files with optional crossfades.↗
Silence RemoverDetect and remove long quiet gaps from a recording.↗
Audio MasteringUse compression, peak analysis and export normalization.↗
Batch Audio ProcessorApply one preset to multiple files and download WAVs in a ZIP.↗
Multitrack EditorLayer multiple tracks, set offsets and pan, then render a mix.↗
Advanced Noise ReductionReduce steady background noise with local spectral subtraction.↗
Audio Visualizer VideoCreate an animated spectrum video from audio and export WebM.↗
SIMPLE WORKFLOW
From file to finished.
Shape the sound
Try a preset or adjust the controls. Preview your changes before exporting.
Export and keep
Export WAV locally, or opt in to server-assisted MP3 conversion.
GOOD TO KNOW
Frequently asked questions
Are my audio files uploaded?
Effects and WAV export are processed in your browser. If you choose MP3 export, the processed audio is sent to this server for encoding only after you check the consent box.
Which formats can I export?
WAV is rendered locally in your browser. Recorder, joiner, silence-cut export, and mastering tools run locally. MP3 export requires FFmpeg on the server and, after your explicit consent, uploads only the already-processed audio for encoding. Input format support depends on the browser.
Does playback speed preserve pitch?
No. The speed control uses playback-rate adjustment, which changes both speed and pitch. Pitch-preserving time stretching requires a dedicated DSP algorithm.
Can I use this on a phone?
Yes, the layout adapts to mobile screens. Large audio files may take longer to decode and process on mobile devices.