Zolkit

Audio Editor

Edit your story. Shape every sound.

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Import a recording to start editing. Split, remove, move and combine clips on the timeline.

Supported formats: MP3 · WAV · M4A · AAC · FLAC · OGG
Drag clips to move · drag the ruler to select a range
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0 clips · 1 tracksS: split · Delete: remove · Shift+Delete: ripple · Undo: Ctrl/⌘+Z

All audio processing stays in your browser.

Edit audio online on a multitrack timeline

Zolkit Audio Editor is a browser-based audio editor for splitting recordings, deleting mistakes, moving sections and combining clips. Edit a podcast like a video: remove a sentence from the middle, move a passage to the beginning, insert an intro and place background music on a separate track with its own volume. Preview the timeline and export one audio file without uploading your audio content.

Split and remove mistakes

Place the playhead at a cut point and split a clip, or select a time range. Delete leaves silence; ripple delete closes the removed interval. Range deletion affects all tracks.

Move and combine clips

Drag clips along the timeline or between tracks. Move a selected passage to the start, duplicate it, or insert another recording at the cursor. Inserting shifts later audio on the destination track.

Layer voice and background music

Use Overlay to place a library file on a new track. Adjust track and clip volume independently, or mute a track. Overlapping clips play together; preview reflects level changes during playback.

Precise waveform editing

Zoom around the playhead, snap to clip edges and trim using the side handles. Clip settings let you enter the timeline position and source start/end times in seconds.

Preview and undo edits

Seek, play and pause the complete arrangement. Undo and redo retain up to 40 project snapshots. Edits reference original audio; source files are not overwritten.

Local editing and flexible export

Export the entire timeline as MP3 by default, or choose WAV, M4A, AAC, M4R, FLAC or OGG. Audio processing stays in your browser; available bitrate options depend on the format.

How to edit a podcast or recording online

  1. Import one or more audio files. The first file opens on the timeline; other files stay in the media library until you insert them or overlay them on a new track.

  2. Seek to a mistake and split at its boundaries, or use range mode to select it. Choose Delete to keep the timing, or Ripple delete to close the gap. Preview the cut before continuing.

  3. Drag clips to rearrange speech, use Move to start for an opening passage, and insert intro audio from the library. Overlay music on a separate track and lower its track volume while listening.

  4. Check the full arrangement, including gaps and overlaps. Open Export at the top right, choose a format and any available bitrate, then download the mixed audio before closing the page.

Which export format should you choose?

FormatWhen to use it
MP3The default for common players, sharing and manageable file sizes, with selectable bitrates. Re-encoding to MP3 uses lossy compression.
WAV / FLACWAV stores uncompressed PCM; FLAC losslessly compresses the processed result. Useful for further editing or archiving, but neither restores information already lost in the source.
M4A / AAC / OGGCompressed options for supported devices and apps. Choose according to the destination's format support and select an available bitrate.
M4RFor preparing compatible ringtone files. Follow the destination device or app's requirements for importing and permitted ringtone length.

Audio editing questions

Which should I use: Audio Editor, Audio Cutter or Audio Joiner?

Use Audio Cutter to keep or remove one selection, Audio Joiner to arrange separate files sequentially with optional crossfades, and Audio Editor to split, move and combine multiple clips on a timeline or layer background music.

How do I delete a mistake from the middle of a recording?

Select the unwanted interval in range mode and use Ripple delete to close it, or split at both ends, select the resulting clip and ripple-delete it. Ordinary Delete preserves a silent gap. Range deletion affects every track; deleting a single clip shifts later clips only on that track when ripple is used.

Can I move a sentence to the beginning and add intro music?

Split the sentence into its own clip, select it and choose Move to start. This closes its old interval and inserts it before other clips on that track. Insert a library file at the cursor for a sequential intro; use Overlay for music that should play underneath speech.

How do I adjust background music without changing the voice?

Put music on a separate track using Overlay. Lower that track’s volume and listen to the mix. Clip volume and track volume multiply; muted tracks are silent in export. There is no automatic ducking or volume automation, so excessive combined levels can cause clipping.

Which formats and recording lengths are supported?

Common imports include MP3, WAV, M4A, AAC, FLAC and OGG when supported by the browser decoder. Seven export formats are available. Long recordings use more device memory; capacity depends on your device and browser. WAV and FLAC avoid an additional lossy encoding but cannot restore missing source quality.

Are recordings uploaded, and can I reopen my editing project later?

Decoding, preview, mixing and encoding happen locally in this browser. Audio content is not uploaded. Media and editing history last only for the current page session; export before refreshing, clearing or closing. The download is a finished audio file, not an editable project.