Categories

Every tool, grouped by what you're trying to do.

AI

Calculators for LLM tokens, API costs, and AI model pricing.

4 tools

GPT Token Calculator

Estimate GPT tokens and API cost instantly.

AI API Cost Calculator

Compare OpenAI, Claude, and Gemini API pricing.

Claude Token Calculator

Estimate Claude tokens and Anthropic API cost.

Gemini Pricing Calculator

Estimate Google Gemini API cost.

Finance

Fee, tax, salary, and profit calculators for creators and sellers.

23 tools

PayPal Fee Calculator

PayPal UK, US & international fees + currency conversion.

Etsy Fee Calculator

How much does Etsy take from sellers? Every fee, profit, break-even & ROI.

Shopify Revenue Checker

Real Shopify net profit and margin after every fee.

VAT Calculator

Add or remove VAT for any country.

Salary to Hourly Calculator

Convert annual salary to hourly, weekly, monthly.

Freelance Hourly Rate Calculator

Find the hourly rate you actually need to charge.

Etsy Profit Calculator

See your real net profit per Etsy order after every fee.

Etsy Pricing Calculator

Work backwards from your target margin to the perfect Etsy price.

Etsy Break Even Calculator

The exact price and unit count where your Etsy shop stops losing money.

Etsy Ads Calculator

ROAS, ACOS and break-even ad spend for Etsy Ads and Offsite Ads.

Etsy Shipping Calculator

Are you losing money on postage? Free-shipping math for Etsy sellers.

Etsy Tax Calculator

Estimate income tax, self-employment tax and VAT on your Etsy earnings.

Etsy Income Calculator

Project monthly and yearly Etsy income from your order volume.

eBay Fee Calculator

Final value fee, insertion fee and payout — what eBay actually takes.

eBay Profit Calculator

Net profit, margin and ROI per eBay order after every fee.

Amazon FBA Calculator

Referral + FBA fees, net profit, margin and ROI per unit.

Amazon ROI Calculator

ROI, margin and payback period on your Amazon inventory.

Amazon PPC ACoS Calculator

ACoS, TACoS, ROAS and break-even ad spend for Amazon PPC.

Stripe Fee Calculator

Exactly what Stripe takes and what lands in your bank.

Stripe Pricing Calculator

How much should I charge? Price backwards from the profit you want.

TikTok Shop Profit Calculator

Net profit after TikTok commission, affiliate payouts and ads.

Walmart Marketplace Profit Calculator

Real profit per unit after Walmart referral fees, WFS and ads.

Shopify MAP Pricing Calculator

Set a MAP-compliant Shopify price that still turns a profit.

Energy

Solar, savings, and clean-energy payback calculators.

1 tools

Solar Panel Calculator

Estimate solar system size, cost, savings & payback.

Health

Period, pregnancy, water intake, BMI and diet plan calculators.

4 tools

Period Calculator

Predict your next period and fertile window.

Pregnancy Due Date Calculator

Find your baby's due date and pregnancy week.

Water Intake Calculator

How much water should you drink per day?

Diet Plan Calculator

Calorie needs and macros for your goal.

SEO

Generators for meta tags, sitemaps, robots.txt, and schema markup.

4 tools

Meta Tag Generator

Generate SEO meta tags with live preview.

Robots.txt Generator

Create a robots.txt file for your site.

Sitemap Generator

Generate a free XML sitemap from a URL list.

JSON-LD Schema Generator

Generate JSON-LD structured data for SEO.

Developer

Everyday utilities: JSON, Base64, UUID, and more.

3 tools

JSON Formatter

Format, validate, and minify JSON.

Base64 Encoder / Decoder

Encode and decode Base64 strings instantly.

UUID Generator

Generate UUID v4 identifiers.

Text

Word, character, and reading-time counters.

1 tools

Word Counter

Count words, characters, and reading time.

Image

Convert images between formats in your browser.

1 tools

Image Converter

Convert between PNG, JPG, and WEBP.

PDF

Merge and manipulate PDFs — coming soon.

1 tools

PDF Merge

Merge multiple PDFs into one.