Free Color Knockout Tool for DTF & DTG Printing
Knockout specific colors from your artwork so the garment color shows through. Essential for DTF and DTG printing where you want the shirt fabric to be part of the design. Includes underbase generation and color separation preview.
Features
Color-Specific Knockout
Select any color in your design and remove it instantly. The garment color shows through.
Underbase Generator
Automatically creates a white underbase layer for dark garments. Essential for DTF on black shirts.
Separation Preview
Preview each color layer separately before printing. Catch errors before they cost you money.
DTF + DTG Ready
Output files work with both DTF and DTG workflows. CMYK + white layer support.
No Software Install
Runs in your browser. No Photoshop or Illustrator needed.
Free Forever
No signup, no watermarks, no usage limits.
How to Use
- 1Upload your artwork (PNG with transparency works best)
- 2Click on the color you want to knockout
- 3Adjust the tolerance to catch similar shades
- 4Generate the underbase if printing on dark garments
- 5Preview each separation layer
- 6Download the print-ready files
Frequently Asked Questions
What is color knockout?
Color knockout removes specific colors from your design so the garment fabric shows through. For example, knocking out black from a design printed on a black shirt means those areas show the shirt color instead of printed ink.
Do I need an underbase?
Yes, if printing on dark garments. The white underbase ensures colors appear vibrant on dark fabrics. Our tool generates it automatically.
Is this free?
Yes, completely free. No signup required. Built by Creative Divine Concepts for the T-shirt printing community.
What file format do I need?
PNG with transparency works best. The tool also accepts JPG, but transparent backgrounds give the best results.
Need Printing Services?
Creative Divine Concepts offers DTF printing, web design, and branding in Kenya.