Regarding PC memory 1. Regarding PC memory

: Online tools consume minimal memory on your PC, limiting it to what the browser uses to display the web page. The bulk of the work is offloaded. PowerShell/FFmpeg scripts are customizable; the conversion will use your PC's RAM, especially for long or high-resolution videos. FFmpeg will load portions of the video into memory for processing. If your RAM is limited, the system may resort to the swap file on your hard drive, which would slow down the process considerably. 2. FFMPEG or FreeConvert Recommendation: For occasional, quick, hassle-free conversions and for non-sensitive files: Use an online tool like FreeConvert. It's the simplest and least demanding on your PC in terms of direct resources. For frequent conversions, sensitive files, if you need precise control over the result, or if you want to automate the process and are comfortable with the command line (and have a PC with sufficient resources): Opt for a PowerShell script with FFmpeg. You'll get better performance and more granular control, at the cost of more intensive use of your RAM and CPU. 3. PC performance determines your final choice: If "PC memory" is your main concern and you want to minimize it locally, an online tool is preferable because it offloads the work to their servers. If control and autonomy are more important, then FFmpeg via PowerShell is the best option, keeping in mind that it will use your machine's resources.