Pattern Generators

Some people swear by pen and paper for patterning, however I prefer digital design. Here are a growing collection of tools I’ve made for patterning and making my own outdoor gear.


These generators take a huge amount of my limited personal time to make and share for free.

If you find these useful and want to donate, feel free to purchase a random sewing guide from this site, or throw some spare change at me via Paypal, Payhip or Ko-Fi. It goes towards providing more free resources for everyone.

Buy Me a Coffee at ko-fi.com

Draw and Generate Patterns Online

Draw a shape and automatically generate a pattern, all in your browser. Bring your own pattern ideas to life with this easy to use free online tool. A simplified online version of the Inkscape extension.

Inkscape Extension: Automatic Pattern Generator

The easiest way to make automatically generate gussets for your bags (e.g. the middle strip of a custom frame bag), or turn a curve into a straight line while maintaining the alignment mark spacings. Huge time saver

Overview image showing example output from the extension

Darted Pattern Generator

Generate patterns online for darted bag panels, such as the front of a Cotopaxi backpack, tech EDC pouches etc

Online Image Perspective Correction Tool

Correct image perspective for digitising fabric pieces, patterns, or anything else.

Runs locally: no images are uploaded

Circular Bag Pattern Generator

You need accurate circles for neat bags. Use this generator to make printable circles with seam allowances for your projects. Tiled PDFs to fit any size needed.

Inkscape Extension: Quick Measure

Not a generator as such, but essential for making patterns in Inkscape. Quickly measure lengths of paths, the segment lengths, and the cumulative positions of nodes along a path. A lot more useful than initially appears.

Boxed Zip Pouch Generators

The first project most people make. An essential starting point and a always useful item to make! Great use of scrap materials

Roll Top Bag Pattern Generator

The easiest way to make a roll top bag. A design especially for beginners, that are not confident yet with rounded bases.