Thinking Tools Lab

About

About Thinking Tools Lab

Thinking develops through reading and writing. Thinking Tools Lab is where Mesut Aydin builds thinking tools for both, and writes about them.

The tools

  • Tabulect helps you read and understand: phrase-by-phrase and speed-reading flow, one-key bookmarks, AI tables beside the text.
  • Polyquill helps you write: live-preview drafting and panel sets that collaborate and share a common memory.
  • Feedcairn feeds your reading: AI finds sources, subscribes you and researches across your feeds.

All three are free desktop apps, MIT-licensed open source and hosted on GitHub. Essays on thinking tools will be published here too.

Free · MIT-licensed open source · source on GitHub: Tabulect, Polyquill, Feedcairn

Principles

  • Your accounts, your machine. The apps use AI command-line tools you install and sign in to yourself (ChatGPT through Codex, Gemini, Kimi, Cursor or Claude through Claude Code). Nothing uses the author's accounts.
  • No invented content. Tabulect never invents table rows, and when a requested local source is unavailable, Tabulect and Polyquill stop with a clear error instead of making text up. Essays here always list their sources.
  • No tracking. This website has no analytics, no trackers, no cookies and no third-party requests. Your theme choice is stored only in your browser.

Status

The apps are in development. Menus are in English and Turkish, with a language switch; built-in AI prompts are in English, available in Turkish, and fully editable or replaceable with your own.