Knitting Software Inc.
Makers of the Sweater Wizard.
Symmetry Works is a plug-in for Adobe Illustrator that lets you make surface pattern designs.
Cochenille Design Studio
Cochenille Design Studio’s software products include Stitch Painter that can design patterns based on a grid and Garment Styler for designing your own handwoven clothing..
I love this software for designing handknit sweaters. It works great for my handspun yarns. I knit a test swatch, type in the gauge, needle size and select the sweater design I want.
This is a free online design tool for designing your own Icelandic sweaters. You can see a 3d sweater with the pattern as you draw it and then you can make PDF document with instructions to knit the sweater. The software works with Chrome or Internet Explorer but I found that this software crashes when using Firefox Browser.
Sweater Wizard 3.0 Sweater Charting Software
With Sweater Wizard 3.0, you can simply and easily create sweaters that fit your body, your style, and your knitting preference.
Sock Wizard PC V2 Software
Create sock patterns based on shoe size. Patterns can be customized for 4 dpns 5 dpns or 2 circular needles as well as knitting from cuff to toe or toe to cuff.
Knitting Math Wizard Software-
Knitting calculation with trepidation expressly designed to eliminate pattern reading stress and ease the phobias of the mathematically challenged or relieves time consuming preparation.
Stitch Motif Maker: Color & Texture Software for Hand Knitters, Version 3.0
Stitch motif maker with knitting symbols most used by the hand knitters.
A knitting chart editor that lets you easily design your own knitting pattern charts for cables, laces, Estonian increases and decreases, Brioche, beaded and twined stitches. Try out the free demo.