Cjam

Overview

Cjam (pronounced “see-jam”) is a simple MP3 file editing software designed for Windows PCs. Files are imported by dragging and dropping them onto the interface, after which they can be processed and exported according to the specified settings. Operations can be defined using text input, allowing multiple independent actions to be executed sequentially. The software enables fast file editing without the need for decoding and re-encoding the audio.

Key Features

• Cut MP3 files
• Join MP3 files
• Add fade effects to MP3 files
• Add silent intervals to MP3 files
• Play MP3 files
• Operate using text commands
• Save settings

Download

You can download the latest version of Cjam from the link below:

Download Cjam

Version: 2.3.1.0
Release Date: Nov 14, 2025
File Size: 1.36 MB
SHA-256: 427fc3c0d2bf75d071334a7c078b0a024cc1186261b291974bb2edc1bf8e47d2

If the latest version cannot be downloaded, the previous version is available here.
For more information, see the forum.

Supported Devices

Cjam requires a PC with the following software installed:

• Microsoft Windows 10 or later
• Microsoft .NET 6.0 or later

Supported File Formats

• MP3 (*.mp3)
• CUE (*.cue)
• M3U (*.m3u)
• CJAMC (*.cjc) - Cjam’s custom format
• CJAMJ (*.cjj) - Cjam’s custom format
• CJAM (*.cjm) - Cjam’s custom format

Installation and Execution

1. Extract the ZIP file and place the “Cjam” folder on a drive with read/write access.
2. Run “Cjam.exe” to start the software.

Changelog

Version 1.0.0.0 - Dec 21, 2019

Version 2.0.0.0 - Jun 28, 2025

Version 2.3.1.0 - Nov 14, 2025

• Fixed a bug where some keys were not working (e.g. the Enter key on the waveform screen)
• Fixed several other minor bugs

For detailed update information, see the full changelog.