Design it yourself · free · real dielines
Design your own mailer boxes
Design your own mailer boxes online, free — in real 3D, with no design skills and no agency. Bring an AI image, brief our in-house AI designer, or lay out your own art on the true production dieline, then download the print-ready files or have it manufactured.
Custom mailer boxes are the face of the unboxing moment, and TWOFORM lets you design one online in live 3D on a true production dieline — inside and out. Pick your size and corrugated grade, and Sam maps your artwork onto every panel, fold and safe zone as you work. Print the exterior, the interior, or both. Bring a design or brief it from scratch, place your exact barcodes and codes, approve a real proof, and we manufacture and ship it. It's the self-mailer e-commerce brands reach for — now orderable without a broker.
How it works
Pick your size
Set the dimensions for your mailer boxes and the real dieline redraws to match — nothing stretched.
Design it your way
Drop in an AI image, brief Sam our AI designer, or drag and drop your own art like Canva — on the real structure, not a flat canvas.
Your assets stay exact
Your barcode, QR codes and legal copy are placed by you and never AI-redrawn — kept pixel-perfect.
Download it — or we make it
Take the print-ready files to any printer, or have the same company manufacture and ship it.
Questions, answered straight
Do I need design skills to design my own mailer boxes?
No. TWOFORM handles the structure, folds and safe zones for you — you bring an AI image, brief the AI designer, or drag your own art onto the real dieline. It's built so anyone can design manufacturable mailer boxes without an agency or design software.
Do I have to order mailer boxes to use this?
No. Designing is free and your production-ready dieline files download on any plan — take them to any printer. Manufacturing with TWOFORM is optional: the same company can make and ship your mailer boxes, but it's never required.
Are the mailer boxes dielines actually production-ready?
Yes — they're generated by the same structural engine that produces our factory print files: real cut lines, bleed and safe zones for mailer boxes, parametric to your exact size.
Design your own mailer boxes for real
Free to start. Real dielines. Your assets, kept exact. Download or manufacture.
Design your mailer boxes →