Custom Garment Pattern Maker
Bespoke pattern cutting precision in your browser with 1:1 physical calibration. Real-time pattern geometry adapts instantly to anatomical measurements, ease preferences, and standard size specs.
Engineered for Your Specific Workflow
Whether you are fitting bespoke clients in a tailor shop, drafting home sewing garments, or building an indie apparel line.
Precision Client Vault & Custom Fits
Store individual client measurement profiles, adjust scye depths, slope pitch, and crotch curve geometry on demand. Eliminate tedious manual re-drafting.
- Unlimited client measurement profiles
- Real-time dart manipulation & truing
- Full A0 plotter export options
Flawless Home Printing & Easy Assembly
No more taping together mismatched commercial PDF patterns. Every sloper features a 100mm verification test box and tiled grid maps.
- Guaranteed 1:1 physical print box
- Tiled A4 & US Letter standard export
- Custom seam allowance toggle
Grading & Production Vector Export
Streamline your pattern development cycle. Produce ASTM D6673 / AAMA standard DXF vector layers for instant digital cutting tables.
- Multi-size nested grading preview
- CAD software compliant layered DXF
- SVG laser cutter / projector support
Instant Printable Standard Pattern PDFs
Download ready-to-print 1:1 calibrated standard size blocks in A4 Tiled or A0 sheet formats. Open any preset directly in app.sloper.fit to adjust custom measurements.
Classic Bodice Sloper — UK 8
Bust: 84cm • Waist: 64cm • Hip: 90cm • 100mm Test Square included.
Classic Bodice Sloper — UK 10
Bust: 88cm • Waist: 68cm • Hip: 94cm • 100mm Test Square included.
Classic Skirt Sloper — UK 10
Bust: 88cm • Waist: 68cm • Hip: 94cm • 100mm Test Square included.
Matching Set-In Sleeve — UK 10
Bust: 88cm • Waist: 68cm • Hip: 94cm • 100mm Test Square included.
Classic Trouser Block — UK 10
Bust: 88cm • Waist: 68cm • Hip: 94cm • 100mm Test Square included.
Built for Professional Pattern Cutters & Apparel Engineers
Calculates cubic Bézier curves, parallel seam offsets, and convex dart roof geometry dynamically in real time.
Convex Dart Roof Extension
Calculates mirror-reflected convex roof geometry over dart legs to guarantee 100% fabric fold accuracy.
Dynamic Hemline Slope Reflection
Reflects side seam slopes dynamically across wrist and ankle hemlines, producing outward reverse-taper flares.
Production Pipeline Standards 100% Client-Side Render
ASTM D6673 / AAMA DXF
Layer 1 Cutline, Layer 2 Seamline, Layer 4 Notches, Layer 7 Grainlines, Layer 11 Darts.
Tiled A4 PDF Sheet
Dedicated Page 1 with centered 100mm × 100mm calibration test square and pattern assembly grid map.
Scalable Vector Graphics (SVG)
1:1 millimetric scale SVG with styled layers, text halo contrast effects, and Cricut / laser support.
Full-Size Architectural A0
Uncut single continuous plot sheet ready for wide-format commercial plotters or projector setups.
Pattern Drafting Guides & Tutorials
Learn techniques in pattern altering, seam allowance math, and 1:1 printing scale verification.
How to True Dart Roofs Correctly
Ensuring zero fabric distortion when folding darts under press before stitching.
GUIDE 021:1 Scale Print Calibration Setup
Configuring Adobe Acrobat and browser print settings with a 100mm test box.
GUIDE 03Understanding J-Crotch Trouser Curves
Balancing anatomical rear depth ease against clean front drape on trousers.