The popular open-source converters are powerful Python tools. Here is an honest comparison so you can pick the right one — including when they beat a browser tool.
vs MarkItDown
MarkItDown is a Python library; this is a browser tool. Compare setup, privacy, file support and when each one is the right choice.
vs Marker
Marker is a high-accuracy Python+PyTorch tool that benefits from a GPU. Compare accuracy, setup, cost and privacy against this browser-based converter.
vs Docling
Docling is IBM’s Python document-conversion toolkit with strong layout and table models. Compare it to this zero-setup, in-browser converter.