Gifts for engineers and programmers

A gift written in their language

Their birthday, encoded in binary and printed on a mug, tee, hoodie or phone case. Developers can read it at a glance. Everyone else just sees a cool pattern. Made to order for one person.

Get their binary code free

Pick their gift

How it works

1
Generate your binary

Visit binarybirthday.com, enter your birthdate, and copy your unique binary code.

2
Choose a product

Pick a mug, tee, poster, canvas, or onesie from our collection.

3
Paste your code

Paste your binary string into the personalization field on the product page.

4
We print & ship

Your custom item is printed and shipped directly to your door.

Gifts for Engineers and Programmers

Questions gift buyers ask

What does the binary code mean?

It is their birthdate written the way computers store numbers: year, month and day, each converted to 1s and 0s. Only people who know how to read binary will know what it says.

How do I get their binary code?

Enter their birthday at binarybirthday.com and click Order. The code is filled in for you on the product page. You can also paste it in yourself.

Can I use a different date?

Yes. Anniversaries, wedding days, a first commit or a launch date all work. Any date can be converted on binarybirthday.com.

When will it arrive?

Each item is printed to order, then shipped. See our shipping policy for current times, and order early in December for holiday delivery.

Is there a discount?

Use code BIRTHDAY15 at checkout for 15% off. Orders over $50 ship free in the US.