All tools

Estimate GPT tokens and API cost instantly.

Compare OpenAI, Claude, and Gemini API pricing.

Estimate Claude tokens and Anthropic API cost.

Estimate Google Gemini API cost.

PayPal UK, US & international fees + currency conversion.

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

Real Shopify net profit and margin after every fee.

Add or remove VAT for any country.

Convert annual salary to hourly, weekly, monthly.

Find the hourly rate you actually need to charge.

Estimate solar system size, cost, savings & payback.

Generate SEO meta tags with live preview.

Create a robots.txt file for your site.

Generate a free XML sitemap from a URL list.

Generate JSON-LD structured data for SEO.

Format, validate, and minify JSON.

Encode and decode Base64 strings instantly.

Generate UUID v4 identifiers.

Count words, characters, and reading time.

Convert between PNG, JPG, and WEBP.

Merge multiple PDFs into one.

Predict your next period and fertile window.

Find your baby's due date and pregnancy week.

How much water should you drink per day?

Calorie needs and macros for your goal.

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

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

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

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

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

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

Project monthly and yearly Etsy income from your order volume.

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

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

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

ROI, margin and payback period on your Amazon inventory.

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

Exactly what Stripe takes and what lands in your bank.

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

Net profit after TikTok commission, affiliate payouts and ads.

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

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