Which formats are supported? Why might the waveform fail to load?

Common formats such as MP3, WAV, AAC/M4A, OGG, and FLAC usually decode in the browser and show a waveform. If a file cannot be decoded (unusual codec or corruption), try another format or browser — the page will show a clear message.

What does “after upload (optional)” mean?

Below the upload area you can pick: edit only, smart trim silence, trim start & end silence, or peak normalize. Your choice runs automatically once after the file is decoded, updating selections or the normalized buffer. The same pill buttons are available later in the editor to re-apply.

How do I trim and export?

Select regions on the waveform (multiple clips allowed), drag boundaries, fade handles, and the volume line as needed. Use Preview all segments, then choose MP3 or WAV (bitrate for MP3) and Export to download.

Quick actions vs Silence Detection?

Quick actions use tuned presets for common jobs: multi-clip speech, trim outer silence only, or peak normalize. Expand Silence Detection to adjust threshold, minimum silence, and padding for fine control. You can use both.

Is my audio data secure?

Yes. Decoding, visualization, and export run locally in your browser. Files are not uploaded to our servers — suitable for interviews, voiceovers, and unreleased material.

What keyboard shortcuts are there?

Space: play/pause. Arrow keys: seek about ±5 seconds. Ctrl+Z / Cmd+Z: undo segment edits. Shortcuts are ignored while typing in inputs.

Online Audio Editor

See the full editor instantly — quick action buttons for one-click trim silence, trim ends, or normalize on upload. Waveform editing, fade controls, manual silence detection, and MP3/WAV export — all in your browser.

Local Processing Privacy Safe Free to Use No Upload

Upload Audio File

Choose what happens after upload

Supports MP3, WAV, OGG, M4A and other common audio formats

0:00.000:00.00

Space: Play/Pause←→: Seek ±5sCtrl+Z: Undo

Segment List (0)

No segments selected yet

Please select audio segments to keep in the waveform above. Desktop: Drag to select area; Mobile: Tap 'New Selection' button and drag handles to adjust range

Export Type

Bitrate

Privacy Safe

Audio processed locally, never uploaded

Trim & Cut

Select and trim audio segments precisely

Audio Adjust

Adjust volume, fade in/out and more

Multi-Format

Support MP3, WAV, OGG and more formats

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Frequently Asked Questions

: Common formats such as MP3, WAV, AAC/M4A, OGG, and FLAC usually decode in the browser and show a waveform. If a file cannot be decoded (unusual codec or corruption), try another format or browser — the page will show a clear message.
: Below the upload area you can pick: edit only, smart trim silence, trim start & end silence, or peak normalize. Your choice runs automatically once after the file is decoded, updating selections or the normalized buffer. The same pill buttons are available later in the editor to re-apply.
: Select regions on the waveform (multiple clips allowed), drag boundaries, fade handles, and the volume line as needed. Use Preview all segments, then choose MP3 or WAV (bitrate for MP3) and Export to download.
: Quick actions use tuned presets for common jobs: multi-clip speech, trim outer silence only, or peak normalize. Expand Silence Detection to adjust threshold, minimum silence, and padding for fine control. You can use both.
: Yes. Decoding, visualization, and export run locally in your browser. Files are not uploaded to our servers — suitable for interviews, voiceovers, and unreleased material.
: Space: play/pause. Arrow keys: seek about ±5 seconds. Ctrl+Z / Cmd+Z: undo segment edits. Shortcuts are ignored while typing in inputs.

Why Edit Audio in the Browser in 2026?

Voice memos, podcast dialogue, social clips, ringtones, and class recordings often need one cut, less silence, or more consistent loudness — without installing a DAW first. MeTool's Online Audio Editor decodes and draws waveforms entirely in the browser: no install, open the page and go.

Unlike tools that hide automation until after upload, you can pick an automatic step before you upload: smart trim silence (keep speech in multiple clips), trim silence at the start and end only, or peak normalization. It runs once right after decode so you see results immediately. Need finer thresholds? Expand Silence Detection and tune parameters.

Processing stays local; audio files are not uploaded to our servers — suitable for unreleased or sensitive material.

What MeTool Online Audio Editor Offers

Optional post-upload actions

Use pill buttons under the upload area: Edit only, Trim silence, Trim ends, or Peak normalize. The selection applies automatically after decode; the same controls appear again in the editor for repeat runs.

Waveform & multiple clips

Drag to select regions to keep; add several clips and manage them in the list with seek and preview. Desktop drag selection; mobile selection handles.

Fades & volume line

Per-clip fade handles for smooth starts/ends; a visual volume line adjusts playback level (reflected on export).

Silence detection (tunable)

Expand to set threshold, minimum silence, and padding — great for refining after a one-click pass.

Export MP3 / WAV

Merges current clips; choose MP3 bitrate or lossless WAV for archiving or further editing.

Suggested Workflow: Upload to Finished File

Choose automation: Long dead air → try Smart trim silence; only leading/trailing silence → Trim ends; overall too quiet → Peak normalize. Manual-only work → Edit only.
Upload & decode: If automation is on, selections or normalized audio appear as soon as loading finishes.
Review the waveform: Zoom, play back, and listen to each clip.
Fine-tune: Drag clip edges, fades, and volume; re-run Silence Detection with custom settings if needed.
Preview & export: Use Preview all segments, pick MP3 or WAV, then download.