Design cartons and mailer boxes in a free online 3D box maker and packaging simulator. Set custom dimensions, upload artwork, preview openings and materials, then export PNG mockups or share your design.
Use 3D Box Studio to create interactive folding-carton and mailer-box mockups in your browser. Enter custom dimensions, choose packaging materials, upload artwork to individual faces, rotate the box and simulate lid or flap openings before exporting a PNG mockup or sharing the design for review.
The Studio is built for visual packaging previews rather than production dielines or structural CAD. For workflow guidance, see the 3D box designer guide, 3D box simulation guide, and our 3D Box Studio FAQ.