: An open-source, non-linear editor for those who want more advanced features without a price tag. It's available for Windows, Mac, and Linux at Shotcut.org .

: Specifically designed for fast joining and cutting. It features a "High-Speed Mode" that merges videos without re-encoding, preserving original quality. Apps for Smartphones (Android/iOS)

: A powerful Windows-based tool that is completely free and has no watermarks. Download it from VideoSoftDev .

Free Video Joiner - Merge Multiple Videos into One | Bandicut

Several free programs and apps allow you to "glue" (merge) video files together without watermarks or complex setups. Depending on your device, here are the most effective tools to download or use: Programs for PC (Windows/Mac/Linux)