Free Online Audio Editor

• A multi-track audio editor with waveforms

  Stack a voiceover, a music bed and sound effects on separate tracks and see the waveform on every clip. The magnetic timeline closes gaps as you cut, so edits stay tight without manual nudging. Zoom in when a cut needs to land between two syllables.

• Trim, cut, split and merge

  Split a clip at the playhead, cut a section out of the middle, or line up takes into one continuous file. For single jobs there are simpler pages: the audio trimmer shortens one file, the MP3 editor handles MP3-only edits, and the audio merger joins several files, no timeline required.

• Cut audio by deleting words

  EchoWave transcribes your recording with word-level timestamps, so deleting a sentence in the transcript deletes it from the audio. Filler words like um and uh, repeated takes and long silences can all be removed automatically. It is the fastest way to tighten a rambling recording.

• Volume keyframes and fades

  Set keyframes to ride the level over time: dip the music while someone speaks, then bring it back up after. Fade ins and fade outs take one drag, and every track keeps its own volume so a loud SFX never buries the narration.

• Record straight into the timeline

  The built-in recorder studio captures your voice, screen, webcam or a full presentation, with a teleprompter so you can read a script while you record. New takes land on the timeline immediately, ready to cut.

• AI voiceover with 63 voices

  Type a script and generate natural text-to-speech in any of 63 voices, streamed straight onto a track. Handy for pickups when re-recording a single line is not worth setting up the mic. Voice cloning is also available as a paid feature.

• Music, sound effects and beat snap

  Add your own music, then pull stingers and whooshes from a categorized panel of 30 sound effect packs. Beat detection lays a grid on the timeline so cuts snap to the rhythm. There is no stock music library, so bring your own tracks.

• Export MP3, WAV, M4A or a video

  Export a free HD MP4 with a small watermark badge, pairing your track with one of 93 music visualizer styles and word-level captions so it posts as a video. Audio-only MP3, WAV and M4A files come with paid plans. Started from footage instead of a sound file? Extract audio from video covers that in one step.

1. 1

   Upload your audio

   Drag in MP3, WAV or M4A files, or drop a video like MP4 or MOV and work with its soundtrack. Each file appears on the timeline as a clip with a visible waveform.

2. 2

   Cut on the timeline or in the transcript

   Split clips at the playhead and delete what you do not need, or open the transcript and delete words to cut the audio itself. Run automatic filler and silence removal to clean up the rest.

3. 3

   Balance and polish

   Keyframe volume so music sits under speech, add fades at every join, and fix pacing with speed changes from 0.25x to 4x. Record or generate any missing lines without leaving the project.

4. 4

   Export your finished mix

   Export an HD MP4 free with a small watermark badge, or go audio-only on a paid plan: MP3 and M4A on Basic, WAV and FLAC on Pro. Rendering runs on a cloud render farm, so your device speed does not matter.

• Podcast episodes

  Cut tangents from the transcript, strip filler words automatically and duck the intro music with volume keyframes. Long episodes stay manageable because the magnetic timeline closes every gap you cut.

• Voiceovers for video

  Record narration with the teleprompter or generate it with 63 AI voices, then line it up against your footage. Export the finished audio on its own or the whole video from the same project.

• Audiograms for social

  Pair a quote from your episode with a waveform visualizer and word-by-word captions. Post the clip as a vertical video without opening a second app.

• Demos, edits and mixtapes

  Merge takes, trim intros, add fades between songs and snap every cut to the beat grid. Speed changes from 0.25x to 4x cover tempo experiments.

• Interviews and lectures

  Trim hour-long recordings down to the useful parts and remove the silences in one automatic pass. The transcript doubles as your notes while you cut.

• Ringtones and short clips

  Cut a 20-second section, fade both ends and export it as M4A or MP3. It is the same job the single-file cutters do, with room to layer a sound effect on top.

Based on each tool's public pages as of July 2026. Free tiers and feature lists change often, so check current pricing before you commit.