There is no single best app for designing clothes, because “designing” covers three different jobs. Pick the app by the job:
- Sketches, flats and print artwork: a drawing or vector app, such as Adobe Illustrator, Affinity or Procreate.
- Seeing the garment in 3D before sampling: a 3D fashion app, such as CLO, Browzwear VStitcher or Style3D Studio.
- Production patterns and grading: pattern CAD, such as Gerber AccuMark, Lectra Modaris, Tukatech TUKAcad, or the free Seamly2D.
Most new brands only need the first group. A clean flat sketch, measurements and material details in a tech pack are enough for a manufacturer to make the pattern and samples.
Apps by job
| Job | Examples | What you get | Good to know |
|---|---|---|---|
| Vector drawing: flats, technical sketches, logos | Adobe Illustrator; Affinity (free since October 2025, Mac and Windows) | Clean line drawings and artwork that scale without losing quality | Illustrator is a paid subscription and widely used in the industry; Affinity opens AI, PDF and SVG files |
| Freehand sketching | Procreate (iPad) | Fast, expressive concept sketches | Raster images: fine for mood and ideas, but redraw logos and print art as vectors for production |
| Simple graphic layouts and mockups | Canva and similar browser tools | Quick T-shirt graphics, presentations and mockups | Check the export resolution and the licence of any templates or elements before printing |
| 3D design and virtual samples | CLO; Browzwear VStitcher; Style3D Studio | Garments built from 2D pattern pieces and simulated on an avatar | Needs real pattern and fabric data to be accurate; Marvelous Designer, CLO’s sister product, is aimed at games and film rather than production |
| Pattern making and grading (CAD) | Gerber AccuMark and Lectra Modaris (same group since 2021); Tukatech TUKAcad; Seamly2D (free, open source) | Production patterns, size grading and markers | Professional tools assume pattern-making skills; patterns are usually exchanged as DXF files |
Product names, prices and plans change often. Check the current version, licence terms and system requirements on each official site before you commit.
How to choose
- Start from what you will hand over. If a factory makes your patterns, you need flats and a tech pack, not CAD.
- Match the app to your device. Procreate runs on iPad; most professional 3D and CAD tools run on desktop computers and need capable graphics hardware.
- Check file compatibility. Ask your manufacturer which formats it accepts: usually PDF or AI for sketches and artwork, and DXF for patterns.
- Try before you pay. Most paid tools offer trials or learning editions; test them on one real style.
- Count the learning time. 3D and pattern tools take weeks of practice to use well; a freelance pattern maker may be cheaper for a small range.
What 3D design can and cannot do
3D apps can cut the number of physical sample rounds by letting you check proportions, colourways and print placement on screen. They cannot fully replace a physical sample: the drape and stretch of a knit fabric in 3D depend on the fabric properties entered, and fit on a real body still needs checking. Treat the 3D model as a step before the first sample, not instead of it.
What a manufacturer needs from your design files
- Front and back flat sketches, with seam lines, stitching and trims shown.
- A measurement chart for the sample size, and your size range.
- Fabric, colour references and trims (see specifying print colours).
- Artwork as vector files, with print size and placement (see artwork files and placement for printed tees).
- Patterns as DXF files, if you have them, with the pattern system named.
For a checklist, see what a tech pack for a basic tee should include. For what custom design work involves and what you can protect, see custom clothing design.
Designing with Knitwear Base
You do not need professional software to work with us. We can start from a sketch, a photo of a reference garment or a sample, and develop the pattern and samples for T-shirts, hoodies, underwear, loungewear and activewear. See our apparel design process and send your files through our contact page.
FAQ
Is there a free app to design clothes?
Yes. Affinity is free for vector drawing and artwork, and Seamly2D is free, open-source pattern-drafting software for Windows, macOS and Linux. Some 3D tools have free or learning plans with limits on commercial use, so read the licence.
Can I design clothes on my phone?
You can sketch ideas and make simple graphics on a phone or tablet. For production files, a computer or tablet with a vector app is more practical.
Sources and further reading
- Canva Newsroom, Introducing the all-new Affinity (free professional design app)
- CLO Virtual Fashion, Our Story (CLO and Marvelous Designer)
- Browzwear, VStitcher product page
- Style3D, Studio 3D fashion design software
- Lectra, press release: Lectra completes the acquisition of Gerber Technology (1 June 2021)
- Tukatech, TUKAcad pattern-making software
- Seamly2D on GitHub (open-source pattern drafting, GPLv3)
- ASTM D6673, Sewn Products Pattern Data Interchange: Data Format (DXF; withdrawn 2019)
Rules and standards are summarised from their official pages for general guidance; this is not legal advice. Check the current version and the requirements of your own market before you rely on them.
