Split Audio File Online - Free
Break one long recording into multiple separate files. Place markers on the waveform where you want the splits, and each segment is exported individually. The split is sample-accurate with no gaps or overlaps between parts.
Break one long recording into multiple separate files. Place markers on the waveform where you want the splits, and each segment is exported individually. The split is sample-accurate with no gaps or overlaps between parts.
Problems This Tool Solves
I need to split a long audiobook into chapters for my car stereo
Place markers at chapter boundaries on the waveform, or split at equal time intervals if chapter positions are not obvious.
My split lands in the middle of a word or note
Zoom in and drag the marker to a silent gap. Flat sections in the waveform show where pauses occur.
I need the split files named with track numbers
Segments export in left-to-right order with sequential names. Rename them after downloading for custom titles.
Common Use Cases
Chapter a long recording
Divide a lecture, sermon, or workshop recording into chapters for easier navigation.
Split a vinyl or cassette rip
Separate a full-side recording into individual songs. Most jazz and classical albums on YouTube are one continuous track.
Create podcast segments
Break a raw recording into intro, main content, and outro files for separate editing.
Divide a sample pack
Split a long sample file into individual one-shots or loops.
Split a long recording into equal parts
Divide an 11-hour audiobook or lecture into fixed-length segments for car stereos or players that cannot bookmark.
Split for car stereos that cannot bookmark
Older car head units restart from the beginning of a file each time. Split a long audiobook or podcast into 10–15 minute segments so you never lose your place.
How to Split Audio Files Online
- Upload your audio file to the editor.
- Click on the waveform to place split markers at each point where you want to divide the file.
- Adjust marker positions by dragging them. Zoom in for more precision.
- Click Split & Export All. Each segment downloads as a separate file.
Split vs Trim vs Cut - Different Jobs
Split
Divides one file into multiple output files at the points you mark.
Best for: chaptering, album splitting, batch segmentingTrim
Keeps one selected section and discards the rest. One input, one output.
Best for: isolating a clip, making a ringtoneCut
Removes one selected section and joins what remains. One input, one output.
Best for: deleting mistakes, removing silenceQuick Tips
- Zoom in on the waveform before placing markers so you split at natural pauses.
- Leave 1–2 seconds of silence between tracks when splitting album recordings.
- Use consistent export settings for all segments so they match in format and quality.
- Back up your original file before splitting. The segments cannot be reassembled automatically.
- For equal-length splits, calculate the interval from the total duration and space markers evenly.
- For album splitting: leave 1–2 seconds of silence between tracks to match standard CD-style spacing.
- When using silence detection, set the minimum silence duration to 2+ seconds to avoid false splits on brief pauses within songs or sentences.
Common Misconceptions
Myth: Splitting degrades audio quality
Reality: The split itself does not alter audio data. Quality depends on your export format. Use WAV for zero loss.
Myth: Automatic silence detection always works perfectly
Reality: Silence thresholds need tuning. Start at -40 dB for clean recordings, raise for noisy ones. Brief pauses within songs can cause false splits if the minimum duration is too short.
Common Problems and Fixes
A split lands in the middle of a word or note
Zoom in and drag the marker to a pause or silent gap. The waveform shows flat sections where silence occurs.
One segment is much quieter than the others
Volume varies across the original recording. After splitting, use Normalize on the quieter segments to bring them up.
I need the segments named in a specific order
Segments are exported in order from left to right. Rename them after downloading if you need custom names.
Why Use This Split Audio File Online
- Place as many split markers as you need on the waveform
- Each segment is exported as a separate file
- Sample-accurate splits with no gaps or overlaps
- Works with MP3, WAV, OGG, FLAC, AAC, M4A, and WebM files
- All processing runs in your browser. Nothing is uploaded.
Frequently Asked Questions
Can I split into equal parts?
Place markers at evenly spaced intervals based on the total duration. For example, to split a 30-minute file into 10-minute parts, place markers at 10:00 and 20:00.
What format are the split files?
You choose the export format (WAV, MP3, or WebM) when exporting. All segments use the same format and quality settings.
Can I split by silence automatically?
Currently you place split points manually on the waveform. Look for flat sections in the waveform - those are the silent gaps between tracks or chapters.
Does splitting change the audio quality?
The split itself does not alter the audio data. Quality depends on your chosen export format. WAV preserves everything. MP3 re-encodes at your chosen bitrate.
How do I set the right silence threshold for automatic splitting?
Start at -40 dB for clean recordings. Noisy recordings with audible hiss or room tone need a higher threshold. If you get too many false splits, raise the threshold. If gaps are not detected, lower it.
Can I split a long audiobook into chapters?
Yes. Place markers at each chapter boundary on the waveform. For very long files, zoom in to find the pauses between chapters. You can also split at equal time intervals if chapter positions are not obvious.
How do I name the split files?
Segments are exported in left-to-right order with sequential names (Part 1, Part 2, etc.). Rename them after downloading if you need custom titles or track numbers.
Can I split using a CUE file or timestamp list?
Not directly. CUE files are used by desktop tools like mp3DirectCut. Here, place markers manually on the waveform at the timestamps from your CUE sheet. For albums, the track boundaries are usually visible as silent gaps in the waveform.