← MDifying document to Markdown converter
Markdown is the format assistants read most reliably. Converting a document to Markdown before you hand it over means the model sees headings as headings and tables as tables, instead of guessing at structure from a raw text dump.
Convert a file now — it is free and runs in your browser
Structure is context. A heading tells the model that what follows is a section about that subject; a table keeps each number attached to its column header. When a PDF is flattened into plain text, both are lost, and answers get vaguer in ways that are hard to attribute to the file rather than the model.
Markdown is also compact. There is no markup overhead to pay for, which matters when you are fitting a long document into a limited context window.
Convert the file, then either copy the Markdown straight into the chat or download the .md and attach it to a Project so it stays available across conversations. MDifying shows an estimated token count with the result, which gives you a rough idea of whether a document will fit before you paste it.
The token figure is an estimate based on text length, not a measurement from a tokeniser — treat it as a guide, not a guarantee.
Because MDifying converts locally, the file itself never goes to any server — including ours. Whatever you then choose to paste into an assistant is your decision, made after you have seen exactly what the conversion produced.