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Open-source tools & agent skills to build the things you’re paying for.

Pydub

Project9.8K

A Python library for editing, combining, and exporting audio files.

Added 2026-10-07
Replaces
GitHub

What you can build

  • Build a folder utility that reads MP4 or FLV inputs and writes MP3 outputs while leaving the source files untouched.
  • Turn an ordered list of audio files into one playlist, crossfading between tracks and fading out the ending.
  • Read a list of source files and millisecond start/end points, then export each selected interval as a separate audio clip.
  • Take a selected audio file and requested decibel adjustments, then export separately named louder or quieter listening versions.
  • Process a folder of audio files, report each duration, and flag files shorter or longer than user-specified bounds.

Try this prompt

Build a small Python batch converter using Pydub. Take a user-selected folder of MP4 and FLV files and export corresponding MP3 files to a separate output folder, using AudioSegment.from_file and export. Do not alter or overwrite the inputs. Report each input and output filename and any conversion failure. Keep the script small, document the ffmpeg/libav requirement, and do not claim codec support beyond the installed converter.

Get started

  1. Install Pydub

    Follow the README's installation instructions for Pydub in your Python environment. WAV files can be opened and saved with pure Python.

  2. Set up format support

    For non-WAV formats, install ffmpeg or libav and follow the README's operating-system-specific setup instructions so the converter is available.

License & notes

MITPydub is MIT-licensed and may be used commercially; retain the copyright and license notice when distributing copies or substantial portions. Non-WAV workflows require ffmpeg or libav as separate dependencies, whose licensing depends on the component and build used. Processing and hosting use your own compute and storage. No model or paid API is documented; no prices are quoted.

  • Pydub is a Python library, not a graphical editing application or hosted conversion service.
  • Non-WAV format support depends on ffmpeg or libav and the codecs available in that particular build.
  • The README notes that extra ffmpeg export parameters are not validated and may depend on the installed build.

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