Bugs & Features

Every bug is an undocumented feature waiting to be discovered

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  • Works On My Machine

    Works On My Machine

    Works On My Machine

    Sale price  $29.99 Regular price  $39.95
  • Not A Bug A Feature

    Not A Bug A Feature

    Not A Bug A Feature

    Sale price  $29.99 Regular price  $39.95
  • Debugging At 3 AM

    Debugging At 3 AM

    Debugging At 3 AM

    Sale price  $29.99 Regular price  $39.95
  • Release Day Cardio

    Release Day Cardio

    Release Day Cardio

    Sale price  $29.99 Regular price  $39.95
  • Avoid The Bugs

    Avoid The Bugs

    Avoid The Bugs

    Sale price  $29.99 Regular price  $39.95
  • Coffee Can’t Fix This

    Coffee Can’t Fix This

    Coffee Can’t Fix This

    Sale price  $29.99 Regular price  $39.95
  • Bug Bounty Hunter

    Bug Bounty Hunter

    Bug Bounty Hunter

    Sale price  $29.99 Regular price  $39.95
  • Drink Coffee Fix Bugs

    Drink Coffee Fix Bugs

    Drink Coffee Fix Bugs

    Sale price  $29.99 Regular price  $39.95
  • It's A Feature Now

    It's A Feature Now

    It's A Feature Now

    Sale price  $29.99 Regular price  $39.95
  • Skip The Tests

    Skip The Tests

    Skip The Tests

    Sale price  $29.99 Regular price  $39.95
  • Senior Bug Engineer

    Senior Bug Engineer

    Senior Bug Engineer

    Sale price  $29.99 Regular price  $39.95
  • Tests Trust Issues

    Tests Trust Issues

    Tests Trust Issues

    Sale price  $29.99 Regular price  $39.95
  • Only Bugs And Fixes

    Only Bugs And Fixes

    Only Bugs And Fixes

    Sale price  $29.99 Regular price  $39.95
  • Local Test, Global Fail

    Local Test, Global Fail

    Local Test, Global Fail

    Sale price  $29.99 Regular price  $39.95
  • Stable Till Interacted

    Stable Till Interacted

    Stable Till Interacted

    Sale price  $29.99 Regular price  $39.95
  • QA Found It Again

    QA Found It Again

    QA Found It Again

    Sale price  $29.99 Regular price  $39.95
  • Weekend Debugger

    Weekend Debugger

    Weekend Debugger

    Sale price  $29.99 Regular price  $39.95
  • The Bug Brought Friends

    The Bug Brought Friends

    The Bug Brought Friends

    Sale price  $29.99 Regular price  $39.95
  • Test Coverage Lies

    Test Coverage Lies

    Test Coverage Lies

    Sale price  $29.99 Regular price  $39.95
  • Code Blooded Bug Free

    Code Blooded Bug Free

    Code Blooded Bug Free

    Sale price  $29.99 Regular price  $39.95
  • Loops Of Doubt

    Loops Of Doubt

    Loops Of Doubt

    Sale price  $29.99 Regular price  $39.95

What Our Customers Say

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5 out of 5 stars
I’ve worn this tee to the office, meetups and at home, it just works everywhere!

James

5 out of 5 stars
Great print quality and the fabric feels way better than the usual cheap promo shirts.

Mike

5 out of 5 stars
Arrived faster than expected and fits exactly as the size guide promised.

Christopher

5 out of 5 stars
Customer support was super helpful when I had a sizing question. Felt like a real brand, not a random dropshipper.

Abigail

Not a bug, a feature

When your tests pass but nothing works

Designs for QA engineers who've seen things that shouldn't be possible and developers who've debugged their way through the impossible. For people who ship code anyway.

Soft, durable tees for testers and debugging warriors. Made for people who know perfect code doesn't exist.

BUILT TO LAST

Quality in every stitch

BUILD BY DEVS

By people who get it

CURATED DESIGNS

Apparel you'd wear

LOVED IN TECH

Favored by insiders

Muscles From Coding coding developer funny - Developer T-shirt - techmerch.io
Tag-free comfort
Versatile unisex fit
Great durability
Pre-shrunk
Soft, all-day comfort
Ethical and sustainable

T-shirt that gets the job done

When you buy a graphic tee, you expect two things: comfort and quality that lasts.

That's why we use a premium, battle-tested blank that holds up to everyday wear. Soft ringspun cotton that stays comfortable after washing, a modern unisex fit that works for most body types, and pre-shrunk fabric that keeps its shape. Prints that stay sharp, and a tear-away label so there's no itchy tags.

This is a t-shirt you can wear to work, in meetings, on casual days, or on weekends without thinking about it. Comfortable, durable, and made to be part of your regular rotation, not just another design that only looks good online.

Tech merch that doesn't cut corners.

QA bug testing t-shirts

Not a bug, a feature

Writing tests that pass while the app crashes in production. Debugging code at 3 AM because "it worked on my machine." QA engineers finding edge cases no one thought possible. Deploying hotfixes on Friday afternoon because someone marked it as low priority. If you've shipped code that's good enough instead of perfect, you'll get these shirts.

For developers, QA testers, and debugging veterans who've made peace with imperfect code. T-shirts about the gap between test coverage and production reality. From "works on my machine" to reproduction steps that make no sense, these designs speak to people who know that shipping beats perfection. Soft, durable fabrics for everyday wear. Made for developers who've learned that every codebase has bugs, some are just better documented than others.

T-shirts > Bugs & Features