Boxes

Custom Mailer Boxes, Designed Online

The e-commerce unboxing box — designed in 3D on a real dieline, proofed, and ordered straight from the manufacturer.

Start designing — free →Watch the 60-second demo
✓ True production dielines✓ Real proof before you order✓ Made in our U.S. factory✓ Ships to your door

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 from our own U.S. factory. It's the self-mailer e-commerce brands reach for — now orderable without a broker.

Design it yourself, online

Design your mailer boxes online in real 3D — with instant proofs.

Watch your package build itself on screen. Sam, our in-house AI designer, can create a finished concept in minutes — or bring your own art. You see the real proof before you spend a dollar, approve it, and we manufacture and ship it straight to your door.

Live 3D preview
Your art wraps onto the true dieline as you work.
AI does the design
Sam builds up to 4 real concepts in minutes.
See the real proof
Approve exactly what will be made — no surprises.
We make & ship it
Straight from our U.S. factory to your door.
Design your mailer boxes now →

Materials, structures & finishes

Structure
  • ·Roll-end tuck-top mailer
  • ·Full-flap mailer
  • ·Corrugated one-piece
  • ·Custom sizes
Material
  • ·Single-wall corrugated (E / B flute)
  • ·Kraft or white
  • ·Recycled North American board
Print
  • ·Full CMYK digital
  • ·Exterior print
  • ·Interior / inside-lid print
  • ·Spot / Pantone color
Options
  • ·Custom inserts & dividers
  • ·Soft-touch & matte finish
  • ·Spot-gloss
  • ·Tear strips

Built for

E-commerce & DTCSubscription boxesBeauty & cosmeticsApparelElectronicsGift & retail
How it works

From your idea to a real, ordered mailer boxe

1
Bring it or brief Sam
Upload a design from ChatGPT, Midjourney or your own designer — or brief Sam, our in-house AI packaging designer, from scratch.
2
Sam creates options
You get up to 4 real concepts, already mapped onto your true production dieline. Not mockups — the real structure.
3
Choose your favorite
Pick the direction you love. Every fold, panel, bleed and safe zone is already correct.
4
Fine-tune it
Final edits open up. Adjust anything with Sam until it feels unmistakably yours.
5
Place your exact assets
Drop in your real barcodes, QR codes, nutrition and legal copy — placed by you, pixel-perfect, untouched by AI.
6
Approve the proof & order
See the real proof, approve it, and order. It goes straight to our factory, print-ready, and ships to your door.

Frequently asked questions

Can I really design it myself online?

Yes. TWOFORM's studio puts a live 3D model of your package on screen — brief Sam, our in-house AI packaging designer, or upload art from ChatGPT, Midjourney or your own designer, and watch it wrap onto your true production dieline in real time. You place your own barcodes, QR codes and legal copy pixel-perfect, see a real proof, approve it, and we manufacture and ship it. No design experience needed.

Can I print the inside of the mailer box?

Yes — design the exterior, the interior, or both in the studio. The 3D model shows inside-lid artwork so the unboxing looks exactly right before you order.

Are the barcodes and QR codes real and scannable?

Completely. You place your own real barcodes, QR/NFC codes, nutrition and compliance panels on the canvas and they stay exact — we never generate fake ones or alter them.

Do you actually manufacture it, or hand me off?

We manufacture it. TWOFORM is the online studio for TWO Packaging, a real U.S. packaging manufacturer with its own factory. You design directly with the people who make it — no broker, no handoff, no moment where it stops being real.

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Design your mailer boxes and order it made — in one sitting.

Free to start. Real proof before you buy. Made in our U.S. factory and shipped to your door.

Start designing — free →