How do I use the Open Developer Shields & Markdown Badges?

Enter your specific project or financial parameters into the input fields above. The engine recalculates outputs dynamically in real time and updates visual charts and summary metrics.

Can I export and share these results?

Yes, you can generate shareable state links, export clean CSV spreadsheets, or print high-resolution executive reports with a single click.

Is this calculator free to use?

Yes, all calculation engines on ToolsVault are 100% free with no account registration or paywall required.

Open Developer Shields & Markdown Badges

Master Suite Badge (Emerald)

GitHub Markdown Code:

[![Yield Empire](https://img.shields.io/badge/Financial_Solvers-400%2B_Free-emerald.svg)](https://tools-vault-4ml.pages.dev/)

HTML Code:

<a href="https://tools-vault-4ml.pages.dev/"><img src="https://img.shields.io/badge/Financial_Solvers-400%2B_Free-emerald.svg" alt="Yield Empire Solvers"></a>

Solar & Energy Sizers Badge (Sky Blue)

GitHub Markdown Code:

[![Solar & Battery Sizer](https://img.shields.io/badge/Solar_Storage-Sizer_Free-38bdf8.svg)](https://tools-vault-4ml.pages.dev/solar_energy_storage_calculators.html)

HTML Code:

<a href="https://tools-vault-4ml.pages.dev/solar_energy_storage_calculators"><img src="https://img.shields.io/badge/Solar_Storage-Sizer_Free-38bdf8.svg" alt="Solar & Battery Sizer"></a>

Real Estate & BRRRR Underwriter Badge (Indigo)

GitHub Markdown Code:

[![Real Estate Solvers](https://img.shields.io/badge/Real_Estate-Underwriting_Suite-6366f1.svg)](https://tools-vault-4ml.pages.dev/real_estate_investment_calculators.html)

HTML Code:

<a href="https://tools-vault-4ml.pages.dev/real_estate_investment_calculators"><img src="https://img.shields.io/badge/Real_Estate-Underwriting_Suite-6366f1.svg" alt="Real Estate Solvers"></a>

Contractor & Fabrication Estimator Badge (Amber)

GitHub Markdown Code:

[![Welding & Fabrication](https://img.shields.io/badge/Contractor-Job_Cost_Estimators-f59e0b.svg)](https://tools-vault-4ml.pages.dev/contractor_fabrication_calculators.html)

HTML Code:

<a href="https://tools-vault-4ml.pages.dev/contractor_fabrication_calculators"><img src="https://img.shields.io/badge/Contractor-Job_Cost_Estimators-f59e0b.svg" alt="Contractor Estimators"></a>

FIRE & Safe Withdrawal Modeler Badge (Violet)

GitHub Markdown Code:

[![FIRE Solvers](https://img.shields.io/badge/FIRE-Safe_Withdrawal_Modeler-8b5cf6.svg)](https://tools-vault-4ml.pages.dev/fire_personal_finance_calculators.html)

HTML Code:

<a href="https://tools-vault-4ml.pages.dev/fire_personal_finance_calculators"><img src="https://img.shields.io/badge/FIRE-Safe_Withdrawal_Modeler-8b5cf6.svg" alt="FIRE Solvers"></a>

GitHub Shields & Markdown Badges

Master Suite Badge (Emerald)

Solar & Energy Sizers Badge (Sky Blue)

Real Estate & BRRRR Underwriter Badge (Indigo)

Contractor & Fabrication Estimator Badge (Amber)

FIRE & Safe Withdrawal Modeler Badge (Violet)