Free Custom Box Dieline Generator & 3D Box Mockup

How to use the dieline generator

1. Select a box style — reverse tuck end, mailer, rigid, gable, takeout and 45 more.
2. Enter your box size — length, width and height in inches, cm or mm.
3. Read the open size — the flat sheet size you need for printing, calculated for you.
4. Check the 3D view — drag the slider to fold the box from flat to closed.
5. Upload your design — see your artwork printed on the box before you order.
6. Download the SVG template — or get the AI and PDF dieline free with your quote.

What you get

• Exact open size for every style, including glue flap, tuck flaps and dust flaps.
• Print-ready dieline with cut, fold and perforation lines on separate layers.
• Free 3D mockup of your own artwork, in seconds.
• No minimum order, free graphic design and free shipping over $100.

Box styles you can generate

Tuck end cartons: reverse tuck end, straight tuck end, auto bottom, 1-2-3 bottom, seal end, five panel hanger. Mailers & shipping: double wall tuck front and tuck top, four corner, six corner, book end, self-lock, full flap shipping box, vinyl record folder. Food packaging: pizza, burger clamshell, fries holder, popcorn, gable, slice box, Chinese takeout, food tray. Rigid & magnetic: two piece rigid, three piece, drawer, sleeve & tray, magnetic closure, collapsible rigid. Displays & specialty: counter wall display, dispenser, display with auto bottom, pillow box, file folder, tissue box, shopping bag, header card, door hanger, envelope and more.

Frequently asked questions

What is a dieline?

A dieline is the flat template of your box. It shows where the board is cut, where it folds and where the glue goes. Your artwork is designed on top of this template before printing.

What is the open or flat size?

It is the size of the sheet before the box is folded. It decides how many boxes fit on a printing sheet, so it drives your cost. The generator calculates it for you from the closed size you enter.

Is the template free?

Yes. The SVG dieline template downloads free and carries our watermark. The clean AI and PDF files come free with your quote.

Can I see my own design on the box?

Yes. Upload a PNG, JPG or SVG and it is applied to the 2D dieline and the 3D box. Nothing is uploaded to our server — it stays in your browser.