Free baby Onesie Pattern

Free baby Onesie Pattern


The Baby Onesie Sewing pattern is long-sleeved and comes in sizes from Preemie to 2 Years old. The Pattern is easy to use, and we are so proud of the result of The Baby Onesie Sewing Pattern. The Baby Onesie Sewing Pattern is our most downloaded sewing pattern.


This pattern is free for our Youtube subscribers.

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Pattern size:

EU SIZES: 54, 62, 68, 74, 80, 86, 92 and 98.

US SIZES: Preemie, Newborn 0-3 Months, 3-6M 6-9 M, 9-12M, 12-18M, 18-24M and 2T.

AGE: Preemie - 2 Years and 6 Months.


Sewing time: Approx: 2 Hours 


Pattern Type:  PDF - Seam Allowance is included. 


Skill level: Beginner


How to use Happy-Sewing Patterns:

All of our patterns are in click and print format. That means that you simply print the pattern and sew the size you want. You can also choose to print the size you want using the index guide. 


Need any help? Or do you have any questions? 

Use the chat on our website or email us: 

We have also made a free tutorial on our tutorial page. 


Please don't share the pattern file with anyone.

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