MindMax 是一款运行在 macOS 和 Windows 上的桌面应用，在一个你已经拥有的文件夹里，陪你读、想、写。关于你文档的回答都带着逐字引文，点一下就回到原页；AI 对你文字的每一处修改，都以一处由你接受或拒绝的修订到达。

现在有很多工具能读一份 PDF，再和你聊聊它。我们做的是另一种形状的东西，值得说清楚为什么。

The first public beta build.

What is in it​

• Reading. PDFs, EPUBs, Word, PowerPoint, Excel and Markdown open from a folder you choose. Annotations anchor to the real position in the document and are stored alongside it.
• Region questions. Drag a box around a chart or table and ask about just that part of the page — useful when a paper stops making sense at a figure rather than at a paragraph.
• Checkable answers. Questions about a document come back with verbatim quotes that link to the page they came from. Quotes that do not match the source are dropped rather than shown.
• Canvas. 37 built-in AI Skills across six groups, for taking one question and working it over from several directions.
• Long-form writing. Outline approval before drafting, an argument ledger across chapters, and revisions presented as marked-up changes.

Known rough edges​

• Builds are not signed yet, so both macOS and Windows will warn on first open. The installation guide walks through it.
• Multi-column PDFs with interleaved figures are still the hardest extraction case; quotes from those pages are worth clicking through.
• No mobile app, no web version. Not planned.

Where to start​

Understand a paper in about 30 minutes is a good place to find out whether this is for you.