Open a MindWrite document
MindWrite files turn up on backup floppies and old hard drives from the mid-to-late 1980s, often with no extension and nothing to identify them — just a name like “Grandpa letters” that no modern program will open. If that’s what brought you here, you’re in the right place. This free tool reads MindWrite documents directly in your browser and converts them to .odt (which opens in Word, LibreOffice, or Pages), to plain text, or shows you an instant preview. There’s nothing to install: a compact conversion engine loads once, works offline afterward, and does all its work on your own machine. Your file is never uploaded to any server, and the original is left exactly as it was — an important guarantee when you’re handling the only copy that exists.
About MindWrite
MindWrite, released by MindWork Software in 1986, belonged to a short, inventive period when Mac developers were still figuring out what a word processor could be. Its signature idea was weaving an outliner directly into the writing environment: you could sketch the structure of a document as a collapsible outline and then flesh it out into finished prose without switching programs. That hybrid approach won it a devoted following among academics and planners, and reviewers of the day praised touches like its ability to gather up text marked for deletion so you could review cuts before committing to them. But the Mac word-processing market hardened quickly around Microsoft Word, WriteNow, and MacWrite, and MindWrite faded by the end of the decade. The company vanished; the file format was never documented publicly. The documents survive because the Document Liberation Project reverse-engineered the format for libmwaw — the same code that lets LibreOffice open these files, and the engine that powers this converter.
Frequently asked questions
Does this tool send my file anywhere?
No. Everything runs locally in your browser through WebAssembly. The file is read on your computer, converted on your computer, and never transmitted. You can even disconnect from the internet after the page loads and it will still work.
How do I know a mystery file is MindWrite in the first place?
You don’t have to know. Just drop the file in — the converter detects the format from the file’s contents, not its name or extension. If it’s MindWrite, or any other supported classic format, it will be recognized automatically.
Can I open the result in Word or Pages?
Yes. The converter produces a standard .odt file that opens in Microsoft Word, LibreOffice, and Apple Pages, with fonts, styles, and layout preserved wherever they can be recovered.
MindWrite mixed outlining with writing. What happens to the outline?
The outline structure converts as structured text: headings and levels come through as indented, ordered content in the .odt file. You keep the organization of the document, just in a form modern software understands.