toolmint.dev
85 free calculators across 12 categories.
AI Writers
Free AI writing prompt generators: blog post, cover letter, email, product description, social media caption, and more.
8 calculators →
Biz Tools
Free online business tools: meeting cost calculator, hourly rate calculator, invoice generator, business name generator,
5 calculators →
Calc Tools
Free online calculators: percentage calculator, BMI calculator, age calculator, GPA calculator, grade calculator, tip ca
7 calculators →
Converters
Free online converters: chmod calculator, QR code generator, password generator, unit converter, fuel cost calculator. A
5 calculators →
Design Tools
Free online design tools: CSS gradient generator, color converter, box shadow generator, color palette, contrast checker
6 calculators →
Dev Tools
Free online developer tools: JSON formatter, Base64 encoder, regex tester, diff checker, JWT decoder, UUID generator, ha
17 calculators →
Encode Tools
Free online encoding tools: binary translator, morse code converter, roman numeral converter, number base converter. All
4 calculators →
Finance Calculators
Free online finance calculators: compound interest, loan payment, savings goal, ROI, salary converter, credit card payof
7 calculators →
Dev Guides
Free developer reference guides: Git cheatsheet, JavaScript tips, SQL reference, regex cheatsheet, Markdown guide, SEO c
6 calculators →
Health Calculators
Free online health calculators: TDEE, BMR, macros, ideal weight, BAC, water intake, pregnancy due date. All browser-base
7 calculators →
SEO Tools
Free online SEO tools: meta tag generator, keyword density checker, headline analyzer, UTM builder, robots.txt generator
7 calculators →
Text Tools
Free online text tools: word counter, case converter, lorem ipsum generator, markdown preview, text cleaner, and more. A
6 calculators →