Good Tool icon

Good Tool

by Hardly Creative · goodtool.org · Developer Tools
Manifest V3 Free
View in Chrome Web Store Data as of 15 Oct 2026

Free mortgage & rental calculators for smarter housing decisions. Compare payments, analyze refinancing, and more.

Users
3
−1 in 30 days
Rating
0.0 / 5
unchanged in 30 days
Ratings
0
0 in 30 days
Store rank
#337K
#262K among extensions
Version
1.0.0
updated 3 Jan 2025

Users

monthly, 2 years
023Jan 2025Dec 2025Oct 2026
Latest, 15 Oct 2026: 3 usersMove the mouse over the chart for any month

Ratings count

monthly, 2 years
001Jan 2025Dec 2025Oct 2026
Latest, 15 Oct 2026: 0 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About Good Tool

# Good Tool Extension - Essential Mortgage & Rental Calculators ## Overview Make smarter housing decisions with our free, easy-to-use collection of mortgage and rental calculators. Whether you're considering buying a home, refinancing your current mortgage, or analyzing rental properties, Good Tool Extension puts professional-grade financial calculations right in your browser. ## Key Features ### 🏠 Comprehensive Mortgage Tools - **Mortgage Rate Calculator**: Get accurate monthly payments, including principal, interest, taxes, and insurance (PITI) - **Refinance Analysis**: Determine if refinancing makes sense with break-even calculations - **Affordability Calculator**: Find out how much house you can afford based on income and debt ratios - **Amortization Schedule**: View detailed loan payoff projections and interest totals ### 🏢 Rental Property Tools - **Rent vs Buy Comparison**: Compare the true costs of renting versus buying - **Rental Yield Calculator**: Calculate potential returns on investment properties - **Income Potential Analyzer**: Project rental income with adjustable occupancy rates - **Break-Even Calculator**: Determine how long until your rental investment pays off ## Why Choose Good Tool Extension? ### ✨ Clean & Simple Interface - Intuitive category-based navigation - Clear, organized input fields - Easy-to-read results with highlighted key numbers - Works offline - no internet required for calculations ### 🔒 Privacy Focused - No data collection or tracking - All calculations performed locally - No external dependencies or connections - Zero permissions required ### 💪 Professional Grade - Industry-standard financial formulas - Comprehensive calculation factors - Detailed breakdowns of all costs - Powered by goodtool.org's trusted calculation engine ## Perfect For: - First-time homebuyers - Current homeowners considering refinancing - Real estate investors - Property managers - Anyone comparing rent vs buy decisions - Financial planners and advisors ## How It Works 1. Click the extension icon in your toolbar 2. Choose between Mortgage or Rental tools 3. Select your specific calculator 4. Enter your numbers 5. Get instant, detailed results ## Technical Details - Lightweight (<1MB) - No external dependencies - Built with modern web technologies - Regular updates and improvements - Compatible with Chrome 88+ ## About Us Good Tool Extension is developed by goodtool.org. Install Good Tool Extension today and make smarter housing decisions with confidence! #mortgage #realestate #personalfinance #investing #calculator

Growth

WindowUsersChangeRatingsRating
7 days0+0.0%00.00
30 days−1−25.0%00.00
6 months+2+200.0%00.00
1 year+2+200.0%00.00

Chrome Web Store search rankings

Where Good Tool appears when people search the store, with the 30 day change
Search phrasePosition30 days
good#81new

Version history

1 versions recorded
1.0.02 Jan 2025

Details

Category
Developer Tools
First seen
2 Jan 2025
Size
44 KB
Languages
en
Pricing
Free
Extension ID
fcapbnahodfdciiaapckckkkfpnfmdjb

Permissions and risk

Minimal riskimpact 0, likelihood 2

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