✅ Pure front-end local computing · Your audio files never leave the device

Mini Audio Studio – Browser audio workstation

① Load audio
Drag and drop the file or click Open

② Edit
Drag the selection range · Click to jump to play

③ Effect
Turn on EQ/Comp/Reverb etc.

④ remit
WAV/OGG/MP3 download

Drag and drop audio files here, or click to select files

Supports MP3, WAV, FLAC, OGG, AAC, M4A, WebM · Paste from clipboard

Frequently Asked Questions

Is this audio editor really free?

Yes, it’s completely free, no installation, no registration required. All audio processing is done in your browser, using the Web Audio API and Canvas technology, and no server support is required.

Will my audio files be uploaded to the server?

No. All files exist only in your device memory. When you close the page or refresh it, the files disappear. We will not upload, store or share any of your audio data.

What audio formats are supported?

Supports MP3, WAV, FLAC, OGG (Vorbis), AAC, M4A (AAC), WebM Audio (Opus). Export supports WAV (lossless), OGG (lossy compression) and low-quality MP3 formats.

How long can I edit the audio?

There is no limit in theory, but browser memory is the main bottleneck. It is generally recommended to process less than 30 minutes of audio for the best experience. Longer messages may need to be segmented.

How to edit audio?

Drag across the waveform to select a range, then use Trim, Delete, or Copy. You can also enter exact start and end times in the Trim fields.

Are sound effects real-time?

Yes, all effects are processed on the fly. When you enable effects like EQ, Compressor, Reverb, and more, you'll hear the changes immediately. On final export, these effects are permanently applied to the output file.

Does it support multi-track mixing?

Supports lightweight multi-track functionality. You can add multiple audio tracks, adjust volume, mute and solo them respectively, and finally merge and export all audio tracks into a single file.

Which browsers support this tool?

Supports the latest versions of Chrome, Edge, Firefox and Safari. It is recommended to use Chrome or Edge for best performance, especially when working with long audio and effects.

What are the keyboard shortcuts?

Space = Play/Pause, Ctrl+Z = Undo, Ctrl+Y = Redo, Delete = Delete selection, Ctrl+C = Copy selection, Ctrl+V = Paste, Ctrl+D = Duplicate.

What is LUFS? Why is it important?

LUFS (Loudness Units relative to Full Scale) is the international standard for modern audio loudness (ITU-R BS.1770). Streaming platforms such as Spotify and YouTube use LUFS to normalize volume. This tool provides an approximate LUFS estimate to help you understand the overall loudness of your audio.

Browser Audio Editing: The Power of the Web Audio API

Mini Audio Studio demonstrates the amazing capabilities of modern browsers in audio processing. Through the Web Audio API, Canvas 2D and OfflineAudioContext, we have implemented functionality in the browser that was previously only available in desktop DAWs (such as Audacity, Logic Pro).

core technology

Web Audio API It is a W3C standard browser audio processing interface that provides rich processing nodes such as AudioContext, AudioBuffer, BiquadFilterNode, DynamicsCompressorNode, and ConvolverNode. These nodes can be freely connected in series to form a flexible audio processing pipeline (Audio Graph).

OfflineAudioContext Allows rapid rendering of audio in the background without the need for real-time playback, allowing effects application, audio analysis and export to be completed in seconds.

Application scenarios

Whether you are a podcaster who wants to trim recordings, a musician who needs to quickly audition the effects, a developer who wants to test audio processing algorithms, or a general user who wants to convert audio formats, Mini Audio Studio can do it directly in the browser without installing any software.