WAV Channel Splitter

Export each of your separately recorded channels as its own file.

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WAV Channel Splitter User Guide

Split a 16-bit PCM stereo WAV into left and right mono WAV files locally in your browser. Preserve sample values, sample rate and duration; preview and export each channel without uploads.

How to use

Import a stereo WAV with separate recordings on the left and right channels.
Check the source name, sample rate and sample count, then preview each channel.
Export the _L.wav and _R.wav copies separately. Replacing the file or leaving the page clears the results.

Formats and limits

Maximum 20 MiB per file; 16-bit integer PCM, 2 channels and 8,000–192,000 Hz only. Empty audio data is rejected.
Only 16 or 18 byte fmt chunks (cbSize 0) are accepted. Additional chunks: JUNK, PAD, bext and iXML only; maximum 1,024 chunks. Unknown formats, duplicate fmt/data chunks and invalid lengths or alignment are rejected.
Downloads directly copy source PCM samples without playback decoding, mixing, normalization, trimming or resampling. Extra metadata is not retained.

Output

Two PCM16 mono copies named with the source base name plus _L.wav and _R.wav. The original file is not overwritten.

Frequently asked questions

Can this separate two speakers within one channel?

No. The source must already have separate signals on its left and right channels. This tool does not perform AI voice separation or noise reduction.

Does previewing change the download sample rate?

No. Browser and device playback may resample audio, but downloads directly use the split PCM bytes and bypass the preview pipeline.

Can a completely silent channel still be split?

Yes. Valid silent channels keep their original sample count and duration. File limits are safety thresholds for this version, not a performance guarantee for every device.

The file name and content are only processed in your browser and are not transmitted to the server. The original file will not be overwritten. Please export the required results before leaving the tool.

All tools

Audio

WAV Channel Splitter
Split stereo WAV into left and right mono files, preserving every PCM sample.
WAV Audio Trimmer
Cut short WAV audio files, audition, fade and export.
WAV Volume Adjustment
Adjust WAV gain or peak normalization, listen to it and export it.

Data

CSV Column Selector
Select and reorder CSV columns, preserving every cell as text in a new copy.
CSV / TSV Converter
Preview the table, retain text and leading zeros, and export a new copy.
JSON Formatter
Indent or compress JSON, preserving numeric precision and field order.
File Base64 Encoder & Decoder
Convert files to Base64 text, or restore text to files.
URL Encoder & Decoder
Convert text to URL element encoding, or restore percent encoding.
UUID Generator
Generate UUID v4 in batches locally, copy or export the list.

Images

Sprite Sheet Player
Preview multiple SpriteSheets in the same frame size, sort, frame by frame, and adjust playback speed.
Sprite Sheet Studio
Arrange frames, preview animations, export to PNG/JPG/BMP, batch ZIP and projects.
Image Converter & Compressor
Convert JPG, PNG, and WebP to and from each other, adjust size and file size.
Screenshot Redactor
Manually frame and crop, and cover sensitive information in screenshots with solid colors.
Image Background Remover
Identify subjects locally, preview and export transparent PNGs.
Image Stitcher
Arrange multiple pictures vertically, horizontally or in a grid to create a new picture.
Text Watermark
Set the text, position and transparency, and export the annotated image.
Image Color Picker
Click on the original image pixel to copy HEX, RGBA or save the color chip.
Rotate & Flip Images
Rotate 90 degrees, flip horizontally or vertically, and export a new copy.
Round Image Corners
Set the corner radius, preserve transparent corners and export as PNG.
Image Grid Slicer
Slice an image by rows and columns, then export the tiles in an ordered ZIP.
Image Dimensions List
View width, height, aspect ratio, format and file size in batches.
Color Contrast Checker
Check the WCAG contrast of the text and background solid color code.
Add Image Borders
Add a solid-color border of equal width around the image to retain the original size.

Text

Markdown Formatter
Organize lists, blank lines, and tables, and retain the original manuscript and content.
Convert Text to UTF-8
Export a copy from UTF-8 or Big5 and check encoding and line breaks.
Text File Merger
Arrange UTF-8 text files, set separation and then merge and export.
Text Statistics
View the number of characters, graphemes, lines, and UTF-8 bytes.
Text Line Cleaner
Remove blank or duplicate lines, sort by clear rules and export.
Text Diff
Compare the two texts line by line to see clearly the differences in additions, deletions and line breaks.

Files

File Content Comparison
Check the complete file piece by piece to make sure every byte is the same.
Batch File Renamer
Add the prefix and serial number, preview and package it into a renamed copy.
Split Files into ZIP Packages
Divided into independent ZIPs according to capacity, complete delivery list attached.
File SHA-256 Checksums
Batch calculation file summary, copy or export complete checklist.

Video

Video Trimmer
Select the start and end times, re-encode locally and export to WebM.
Video Frame Capture
Move to the specified time and export the current screen to PNG.
Remove Audio from Video
Remove the audio track and re-encode the clip to silent WebM.
Video Contact Sheet
Evenly capture multiple time points to create an overview map with time annotations.
Video Information
View size, duration and size of batches, and export TXT/JSON list.
Separate Video & Audio
Split the video into silent WebM and independent audio, pilot and export respectively.