About Jason Ramirez
Last updated: June 30, 2026
Hi. I am Jason Ramirez. I make FiberTools. It is just me, not a big team and not a robot. I build these tools, and I use them too.
Why I make things
I am a developer and a counselor. I am also in recovery.
Crochet is one of my hobbies. It keeps my hands and my mind busy, and that helps me stay calm. I also like photography, coding, and building websites. My work as a counselor helps too. I picked up crochet for this reason. It keeps me grounded.
I share the recovery part on purpose. Recovery gave a lot to me. Now I want to give some of that back. Maybe my story helps someone else. If you are struggling, you are not alone. It is okay to ask for help. Here is where you can reach out:
- 988 is the Suicide and Crisis Lifeline. You can call or text, any time, day or night.
- SAMHSA National Helpline: 1-800-662-4357. It is free and private. Someone is there all day and all night. They can help you find care.
Why FiberTools exists
I tried a lot of fiber arts calculators. Each one did just one thing. One did gauge. One did yarn amounts. One did needle sizes. I got tired of jumping between them. So I built one place that does it all. It is free, and you do not need to log in.
FiberTools is a real toolbox for makers. It is not a blog with a calculator stuck on the side. I use it every day. When I find something missing, I add it.
Every calculator uses Craft Yarn Council (CYC) standards. That is the same system yarn makers use all over the world. It covers yarn weights (0 to 7, from Lace to Jumbo), hook and needle sizes, and gauge. The size charts match real maker standards, not guesses.
I checked every formula by hand before I put it online. I also tested each one with tricky numbers. Big blankets. Odd swatch sizes. Stitch counts that do not divide evenly.
Now I crochet too. So I test the tools on my own projects. My first granny squares came out a little crooked. One gauge swatch was too tight. Once I even bought too little yarn. Being new helps me. I still remember which parts are hard. Every tool is free. Ads keep it free, and I plan to keep it that way.
Get in Touch
Do you have an idea? Did you find a bug? Do you want a new tool? I would love to hear from you.
Email: hello@fibertools.app
I read every message. I try to reply within a few days.
Jason Ramirez / Your Friendly Developer LLC