Technical sketch tool in your browser
Draw lines, rectangles, and dimension lines in millimeters—on a blank sheet or over a screenshot. No install, no account.
What you get
EngSketch in the browser—for quick technical communication, not formal document review.
- Start on a blank sheet with lines, rectangles, and mm dimension lines
- Mark up a CAD screenshot or design capture when you already have one
- Export PNG, copy to clipboard, or save locally—nothing to install
How it works
Three steps from image or blank sheet to a shareable drawing.
- 01
Start
Open a blank sheet or import an image—a screenshot, PDF, or photo from the clipboard.
- 02
Draw
Add lines, rectangles, arrows, labels, and text.
- 03
Dimension
Place dimension lines in millimeters. On a photo, calibrate scale from one known measurement.
FAQ
Can I use it on a tablet or phone?
Yes—modern mobile browsers supported; tablet is most comfortable for editing.
Do I need to install anything?
No—EngSketch runs in your browser. Open the editor and start sketching; no app store and no sign-up.
Does EngSketch replace CAD?
No—for quick sketches and markup on images, not manufacturing drawings or DWG export.
Related
- Calibrate photo scale and add mm dimensions
Import a field or site photo, set scale from one known measurement, then place dimension lines in millimeters—in the photo plane, for field notes and email.
- Draw with mm dimensions online
Add editable dimension lines in millimeters to a sketch or marked-up image—lighter than opening CAD, clearer than guessing pixels in Paint.
Ready to sketch?
Open the editor—sketch from scratch or mark up a screenshot—in minutes.
Questions, ideas, or something not working? FeedbackShare feedback