BlackHole

Free tools for finance, business, and productivity — built for India, UAE, and the US.

techtools365.com

Live Products

PennyMath — Financial Calculators

20 interactive calculators for India, UAE, and US:

• Old vs New Tax Regime Comparator — side-by-side comparison with all deductions
• FIRE Calculator India — financial independence planner adjusted for Indian inflation
• Step-Up SIP Calculator — see how annual increases multiply wealth
• Multi-Loan Comparator — compare 3 bank loan offers side-by-side
• UAE Gratuity Calculator — end-of-service benefits under UAE Labour Law
• Dubai Rental Yield Calculator — net ROI with DLD fees, service charges, vacancy
• SIP Calculator, EMI Calculator, FD Calculator, PPF Calculator, Income Tax Calculator, VAT Calculator, Compound Interest Calculator

ToolJury — SaaS Comparisons

13 honest side-by-side comparisons across VPN, web hosting, and email marketing:

• NordVPN vs ExpressVPN
• NordVPN vs Surfshark
• Hostinger vs Bluehost
• Hostinger vs SiteGround
• Mailchimp vs ConvertKit
• Mailchimp vs MailerLite
• ActiveCampaign vs Mailchimp
• And more...

WanderWise — Multi-Passport Visa Checker

The only visa checker that handles multiple passports and residence permits:

• 199 countries in the visa matrix
• 7 document types (UAE Residence, US Visa, US Green Card, Schengen Visa, Schengen RP, UK BRP, Canada PR)
• 75+ verified document-country exemptions from official government sources
• Recommends the best document to use for each destination

Tech Stack

• PennyMath: Astro + Preact (Islands Architecture) + Chart.js
• ToolJury: Hugo
• WanderWise: Astro + Preact
• Hosting: Cloudflare Pages (free)
• Domain: techtools365.com

Free. No Signup. No Data Collection.

All tools run entirely in the browser. No server-side processing, no data collection, no accounts needed.