EDIT & CALCULATE
Work with notes and data in one place.
Search and replace across a note, jump between bookmarks, edit CSV data, and run formulas without leaving your workspace.
SEARCH / REPLACE / BOOKMARK / FORMULA
YOUR THINKING, DIRECTLY CONNECTED
CtrlNotes is the super-fast, keyboard-first utility that catches every idea without breaking your focus.

Every tool switch has a cost.
One shortcut. One utility. Total keyboard control. CtrlNotes sits close enough to your brain that data is captured before the thought is gone.
01 / THE WORK
Edit, compare, find, and investigate without breaking your flow or handing your files to the cloud.
EDIT & CALCULATE
Search and replace across a note, jump between bookmarks, edit CSV data, and run formulas without leaving your workspace.
SEARCH / REPLACE / BOOKMARK / FORMULA
DIFF
Copy code from VS Code into a side-by-side diff, remove unwanted whitespace and line breaks, and review only the changes that matter.
COPY FROM VS CODE → CLEAN → COMPARE
FIND
Browse saved notes by date in the calendar or search your entire library at once. The context you need is always a few keystrokes away.
CALENDAR / GLOBAL SEARCH / OPEN
NAVIGATE LOGS
Stream massive log files without losing responsiveness, then search, jump, and navigate through millions of lines with ease.
STREAM / SEARCH / JUMP / INSPECT
02 / THE TOOLBELT
Capture, transform, compare, calculate. Stay in the same mental room while the problem changes shape.
OFFLINE OCR
CSV QUICK MATHS
SYNTAX-AWARE DIFF
PLAIN MARKDOWN
03 / UNDER THE HOOD
CtrlNotes is written in Rust and optimized with GPU rendering. It is engineered to scale from a fleeting idea to thousands of notes—and giant files—without losing that blazing-fast feeling.
04 / NO MOUSE REQUIRED
CAPTURE A NOTE
OPEN THE PALETTE
READ THE DIFF
Shortcuts are configurable. Your hands stay where your thoughts happen.
05 / QUESTIONS
CtrlNotes is a keyboard-first desktop note-taking and problem-solving utility for developers and technical teams. It combines instant capture, Markdown notes, structured-log reading, diffs, OCR, CSV tools, todos, and search in one local workspace.
Yes. CtrlNotes is written in Rust, uses GPU rendering, and is designed to stay responsive across thousands of notes and very large files.
Yes. Notes are plain Markdown files stored locally, and image OCR runs offline with embedded models. There is no required account or cloud service.
CtrlNotes is available for macOS from the Mac App Store and for Windows from the Microsoft Store.
06 / GET CTRLNOTES
From your favorite store, with automatic updates.