Box Blanks

Box Blanks is a free parametric packaging dieline generator that runs in the browser. You pick a box style, enter your dimensions, select a board type, and download a cutting file ready for print or production. It covers both major packaging standards, the full range of FEFCO corrugated codes and 206 ECMA folding carton designs, which puts several hundred box styles behind one tool. FEFCO is the international catalogue of corrugated box constructions, the shipping and mailer end of the packaging world, while ECMA covers folding cartons, the retail boxes products actually sit in on a shelf, so between the two standards the coverage runs from plain shippers to display packaging.

The problem it solves is one every packaging designer, print shop, and small product brand knows well. Dielines are usually either locked inside expensive structural design software like ArtiosCAD, scattered across the internet as fixed-size templates drawn for someone else's dimensions, or ordered from a box supplier who takes days to send back a file. Stretching a downloaded template to new dimensions is exactly where mistakes creep in, because flap lengths, glue tabs, and crease allowances don't scale linearly with panel size, and a dieline that's wrong by a few millimeters only reveals itself after you've cut board. Box Blanks sidesteps all of that by generating the geometry fresh for your exact numbers every time.

That parametric approach is the core of the product. Rather than resizing a stored drawing, each template declares its panels and hinges, which panel folds against which, and everything else is derived from there. Change the length, width, or depth and the whole dieline recalculates. It's the difference between a drawing and a program that draws. As you adjust dimensions you get a live 2D preview of the flat blank plus an interactive 3D fold, so you can watch the box assemble on screen and confirm the structure closes properly before committing anything to board. For anyone who has ever folded a paper mockup only to find a tuck flap a centimeter too short, seeing the fold happen digitally first is the feature that pays for itself, except of course nothing here needs paying for.

Export covers the three formats production actually needs. PDF output is true 1:1 vector, so you can print at 100% and cut directly against it, which matters for anyone hand-cutting prototypes with a knife and straightedge. SVG drops cleanly into design and laser-cutting software. DXF is the CAD route, with separate CUT, CREASE, and PERF layers so a cutting table or plotter operator can assign the right tool to the right line without relayering the file by hand. That layer separation sounds like a small detail, but it's the difference between a file that goes straight to the machine and one that costs someone twenty minutes of cleanup first.

It fits a wide spread of users. Structural packaging designers get a fast way to spin up standard FEFCO and ECMA constructions without opening heavier CAD tools. Print shops and converters can hand a customer a correct dieline in minutes instead of days. Makers with laser cutters or cutting plotters get production-ready files for custom boxes. And small e-commerce brands prototyping their own packaging can go from a product's measurements to a foldable mockup in one sitting, no structural design background required, printing the 1:1 PDF, cutting it out, folding it around the product, and adjusting dimensions until it fits.

What makes it stand out is the combination of breadth and restraint. Plenty of free template sites offer a dozen popular styles as static downloads. Covering the whole FEFCO catalogue plus the ECMA folding carton range, parametrically, with proper layered CAD export, is the kind of coverage you'd normally expect from paid structural design software. At the same time it doesn't try to be an artwork tool. There's no graphics editor bolted on, it generates the structure and hands you a clean file to finish in whatever design software you already use, which is exactly the right division of labor.

The access story is as simple as it gets. Box Blanks is completely free, and the site states the dielines are yours to use, commercially or otherwise, with no attribution required. There's no account, no paywall on styles or export formats, and no watermarking. For a category where the incumbent tools cost serious money, a free, no-strings generator covering both major standards is an easy bookmark, and questions go to hello@boxblanks.com.