Contact Us

FiberTools is a free collection of online calculators and utilities built specifically for knitters, crocheters, weavers, spinners, and fiber artists of every skill level. Every tool on the site is designed by someone with over 30 years of hands-on fiber arts experience, so we understand the real-world problems crafters face when planning projects, converting measurements, or adjusting patterns.

Whether you are a beginner figuring out how much yarn you need for your first scarf or an experienced maker calculating complex shaping for a custom garment, we want to hear from you. Your feedback helps us improve existing tools, fix errors, and build new calculators that the fiber arts community actually needs.

Get in Touch With FiberTools

The best way to reach us is by email. Send your message to the address below and we will get back to you as quickly as we can.

Email: hello@fibertools.app

What Can I Help You With?

We welcome all kinds of messages from the fiber arts community. Here are some of the most common reasons people get in touch:

• Tool feedback — Let us know if a calculator gave you an unexpected result, if the interface is confusing, or if you have ideas for improving an existing tool. Specific details (the values you entered, the result you expected) help us investigate faster.
• Yarn calculation questions — Unsure which calculator to use for your project, or need help interpreting a result? We are happy to point you in the right direction.
• Pattern suggestions — If you would like to see a calculator or reference chart for a specific technique, stitch pattern, or craft discipline, let us know. Many of the tools on FiberTools started as user suggestions.
• Bug reports — Something broken, displaying incorrectly, or not loading? Please include the device and browser you are using so we can reproduce the issue.
• Accessibility issues — We are committed to making every tool usable by everyone. If you encounter a barrier related to screen readers, keyboard navigation, color contrast, or any other accessibility concern, please tell us so we can fix it.
• Partnership and collaboration inquiries — If you are a yarn brand, pattern designer, fiber arts educator, or content creator interested in working together, we would love to hear your ideas.

Our Response Time and Process

FiberTools is maintained by a small, dedicated team, so we typically respond within 2–3 business days. If your message is about a critical bug that prevents a tool from working, we will do our best to prioritize it. We read every email we receive, even if it takes a little time to reply.

Other Ways to Connect

While email is the fastest way to reach us directly, you can also explore the full suite of free tools available on FiberTools. If you have not tried them yet, here are a few popular starting points:

• Yarn Calculator — Estimate how much yarn you need for any project based on gauge, dimensions, and stitch pattern.
• Gauge Calculator — Convert your swatch measurements into accurate stitch and row counts for pattern sizing.
• Blanket Size Calculator — Find the right dimensions and yarn requirements for blankets of every size, from baby to king.

Browse all of our tools from the homepage to discover calculators for hats, socks, granny squares, cross-stitch, color pooling, and much more.

Frequently Asked Questions About FiberTools

Is FiberTools free?

Yes. Every calculator and tool on FiberTools is completely free to use. The site is supported by ads, which allows us to keep all tools available without requiring a subscription or login. We also offer offline access through our progressive web app, so you can use your favorite tools even without an internet connection.

Who creates these tools?

FiberTools is created by a fiber arts expert with over 30 years of experience in knitting, crochet, weaving, and other textile crafts. Every calculator is built with real-world crafting scenarios in mind, tested against established references, and refined based on community feedback.

Can I suggest a new calculator?

Absolutely. Many of the tools on FiberTools were inspired by requests from crafters just like you. If there is a calculation you find yourself doing by hand over and over, send us an email at hello@fibertools.app and describe the problem you are trying to solve. We review every suggestion and prioritize based on how many crafters would benefit.