The Creatures Tools page: calculators, visualizers, and generators

Creatures keeps a growing set of free tools at /tools, built for breeders and animal enthusiasts. They are public and free: you do not need a Creatures account to use any of them, and none of them write anything to your animals or your account. You give some inputs, the tool gives you an answer or a picture, and that is it. (A couple of optional extras, like downloading your brand design files, ask you to create a free account; the tools themselves never require one.)

Calculator or visualizer? The plain difference

The tools come in two shapes, and it helps to know which is which:

• A calculator takes inputs and computes an answer. You give it numbers or choices, and it returns a result: a due date, an estimated weight, a market price range, the odds of each offspring color.
• A visualizer lets you toggle settings and watch a picture change, so you can learn how something works. You are not entering data to get a single answer; you are exploring.

Everything on the Tools page is one or the other, with two creative exceptions: the name generators ask an AI to write you ideas, and the Brand Designer is a drawing tool you compose with.

What lives on the Tools page

The landing page shows eight tool cards. Here is who each is for and what it does, in the order the page lists them:

• Cattle Brand Designer. Compose a livestock brand from letters, numbers, symbols, and enclosures, with a live preview that names your design in traditional brand-speak, plus an ideas gallery and a 50-state registration directory. See Design a cattle brand: the Brand Designer, ideas, and registration.
• Livestock Value Calculator. Enter species, breed, sex, and age and get a directional market price range built from real auction sales. See Check market prices with the Livestock Value Calculator.
• Coat Color Calculators. Predict the offspring coat colors from two parents, for Highland cattle, miniature donkeys, and Nigerian Dwarf goats. This is the planning tool for a pairing. See Coat color calculator and visualizer.
• Coat Color Visualizers. Toggle one animal's genes and watch its coat change, to learn how its genes produce its color. This is the learning tool. Also covered in Coat color calculator and visualizer.
• Gestation Calculators. Track pregnancy timelines and due dates. This tool has its own full guide: see Using the gestation calculator.
• Weight Calculators. Estimate an animal's live weight from two tape measurements, for ten species, no scale needed. See Estimating animal weight with the weight calculator.
• Animal Name Generators. Ask an AI for creative, memorable names for your animals. See Animal and organization name generators.
• Organization Name Generators. Ask an AI for professional names for a farm, ranch, cattery, or other animal business. Also covered in Animal and organization name generators.

What the tools do and do not save

This is worth being clear about, because it is the most common question:

• The calculators and visualizers compute their result in your browser or hand it back on the page. None of them save anything to your animals or your account.
• The name generators are the same: the names live only on the page until you regenerate or leave. The generator does offer a button to create a real animal or organization profile if you adopt a name, but that is a separate, optional step you choose, not something the tool does automatically.
• Two tools offer optional account steps on top of a fully usable free tool: the Brand Designer asks for a free account only when you download your design files, and the Livestock Value Calculator offers to carry your result into a new animal profile. Both are covered in their own guides.

So you can use any tool freely, signed in or signed out, without changing a single record.

Where to go next

• For designing and registering a livestock brand: Design a cattle brand: the Brand Designer, ideas, and registration.
• For a market price range before you buy, sell, or add an animal: Check market prices with the Livestock Value Calculator.
• For naming an animal or a business: Animal and organization name generators.
• For planning a pairing or learning coat genetics: Coat color calculator and visualizer.
• For estimating weight without a scale: Estimating animal weight with the weight calculator.
• For pregnancy due dates: Using the gestation calculator.

Related information

• Design a cattle brand: the Brand Designer, ideas, and registration
• Check market prices with the Livestock Value Calculator
• Animal and organization name generators
• Coat color calculator and visualizer
• Estimating animal weight with the weight calculator

Updated on: 22/07/2026