Calibrate plans
Set scale from a known dimension and work in real measurements.
FREE PDF MARKUP + ONLINE CAD DRAWING
Free PDF
markup.
Annotate PDF plans, draw in 2D and measure calibrated distances and areas. Make scanned notes searchable with local OCR, then export a PDF without a watermark.
Free to use. No account required. Save projects and exports to your own drive.
DESKTOP + LAPTOP / FREE TO USE
CALIBRATE / DRAW / DECIDE
FREE PDF DRAWING + MARKUP SOFTWARE
Work directly on scaled PDF plans without the heavyweight CAD setup.
KresCAD is a free browser workspace for architects, builders, estimators and anyone working with PDF plans. Calibrate a page, add scaled geometry, measurements and notes, then save your work to your own drive.
Built by practising architects who work with plans every day. Why we built KresCAD ↗
Draw to scale online
Add precise lines, shapes and markups directly over the PDF.
Measure quickly
Check distances and areas after calibration. Learn to measure a PDF plan.
Stay in the browser
A focused desktop workflow without a traditional heavyweight install.
ONE WORKSPACE, FOUR USEFUL WORKFLOWS
Markup, scaled drawing, measurement and searchable plans.
Free PDF markup
Mark up PDF plans free in your browser. Add notes, shapes, dimensions and reusable symbols, then export a watermark-free PDF. No account required.
Free online 2D CAD
Create a blank drawing or work over a PDF plan. Set the scale, add lines, shapes and dimensions, and save an editable project.
Local PDF OCR
Run free English OCR on a selection, one PDF page or an entire document. Search, select and copy recognised text, then export a searchable PDF. Processing stays in your browser.
Measure PDF plans
Calibrate from a known dimension, measure distances and enclosed areas, and check mixed-scale drawing sets before sharing your review.
BROWSER COMPATIBILITY
Desktop first, deliberately.
KresCAD is available now for modern desktop and laptop browsers. The public guides work on mobile too; the precision drawing workspace currently requires a desktop or laptop.
AVAILABLE NOWDesktop + laptop
PLANNED LATERTablet + mobile
FREE TO USE
Free to use. A simple way to start.
Use KresCAD free with watermark-free exports. No account or card required. Free access will not automatically become a paid subscription.
LAUNCH KRESCAD ↗