DIY Turning Onesies into T-Shirts

Turning onesies into T-Shirts is one of the easiest refashion we could possibly make and quickly solve the problem of onesies not fitting or never used because of situations like potty training.

Probably most of you mommies have had this situation or might have in the future. I’ve got a whole pack of Onesies that Emma never used. When she turned 2 yo she started the potty training and a couple of weeks later she was already doing it by herself so wearing onesies would make going to the bathroom a bit complicated.

DIY Turning Onesies into T-Shirts

DIY Turning Onesies into T-Shirts #Tutorial #onesiestoshirts #onesies

Thankfully my girl learned how to go to the bathroom {using the actual toilet} pretty quick, and she started going without notice less than a month after potty training. So Onesies were definitely a pain for her {even though I LOVED seeing her wearing them}. Almost a year later {duuh} I figured what to do with them after seeing this awesome idea from Therapeutic Crafting.

My girl is really skinny so most of 24 months clothing still fits on her. Pants got short but still fit in her waist. LOL. So clothes are something that last long around here I just refashion them a bit so she can keep using them like when I revamped my Kid’s Pants to Extend Their Life.

So, Let’s see how easy it is Turning Onesies into T-Shirts, shall we?

What you need:

  • Scissors
  • Ruler
  • Fabric markers
  • Onesies
  • {sewing machine optional}


Straighten the onesie as much as you can {ironing is a good idea, I didn’t do it LOL}.


With a ruler, draw a straight line between both ends of the onesie right at the edge of the side hems.


Cut through the line


And tadaaaaaa It’s ready to use and doesn’t it look super cute!!!. Love to be able to keep using those cute onesies!




I read that cotton don’t fray so you can either leave it like that {like I did} of take it to a serger to make a more delicate finish. I’ve also read that you can zig-zag the ends and make it ruffle. So cute. I’m planning on take a couple more to a serger and the other one do the zig-zag and see how it goes!

 What do you think??? Have you had this situation, have you been turning onesies into T-Shirts??? If you know any other technique to do it leave it on the comments so we all can learn from you!!!

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My name is Camila Rojas but everyone call me Cami. I'm a mommy, blogger, baker, do it yourselfer, crafter and graphic designer. Owner and founder of The Crafting Nook {formerly TitiCrafty} and TCN Design Studio: web design for bloggers. Join me on my crazy adventures!

19 Comments at DIY Turning Onesies into T-Shirts

  1. Camila

    I’m having the potty training thing happen. I bought my daughter some cute onsies for her 2nd birthday (about 2 months away) but she’s ready to potty train. I was having a hard time thinking that now I’ll have to sell these, consign them, or gift them to someone else (I’m past the return date). I guess I don’t have to now!!

    1. Camila

      I did this to all my girl’s onesies after she potty trained and she used hem for a long time. I remember I used to love those onesies, they were so so cute!!!!
      Glad your girl now get to use hers too!

  2. Camila

    Hi Camila…
    Great idea and money saver too. And she looks adorable on her modeling style.

  3. Camila

    What a no-brainer and yet I didn’t think of it! Now I know what to do with those cute onesies. Thanks for sharing the idea.

    1. Camila

      LOL totally agree, I could have saved many others before! But is never too late to save some of these right?
      XOXO thanks for stopping by!

  4. Camila

    this is such a great idea! My daughter doesn’t like onsies anymore, but she can still fit into them and we have a bunch that were gifts that still have tags!!

    1. Camila

      Same happened to us… Brand new super cute onesies that she wouldn’t use anymore. Now she can wear them all the time!!! Thanks so much for stopping by! I;m glad this could help you!

  5. Camila

    This is a great upcycle project! Thank you for sharing at the Thursday Favorite Things blog hop. Watch for your feature on Monday xo

    1. Camila

      Thank you Katherine! Love upcycling!!!!