Business Toolbox

A small, static site that bundles a few practical calculators I use in real-world pricing, retainer, and B2B negotiation conversations.

Included tools

• Hourly Rate Calculator (tools/hourly-rate/)

  • Derives an hourly (or day) rate from annual cost structure, unproductive days, and a configurable tax model.
  • Includes JSON presets + import/export.

• Retainer Tier Evaluator (tools/retainer-tier/)

  • Compares retainer tiers by MRR/ARR, effective rate, reserved capacity, and contract knobs (discount, overage, notice, term).

• Freelancer-ROI-Check (tools/freelancer-roi-check/)

  • Checks the ROI of a replacement decision based on ramp-up productivity, mentoring overhead, procurement hours, and optional cost-of-delay.
  • Includes JSON presets + import/export.

Run locally

No build step. Any static server works.

npm install
npm run vendor:sync
make check-tools-json
python3 -m http.server 8080
# open http://localhost:8080

After Dependabot updates, run npm install, npm run vendor:sync, and make check-tools-json, then briefly test the static site locally.

Notes / disclaimer

These tools are for modeling and decision support. They are not tax/legal advice and they may use simplified assumptions.

Adding a new tool

1. Create a new folder under tools/<your-tool>/.
2. Add a tool.json file inside that folder (required keys: title, description; optional: tags, order).
3. Run make tools-json to regenerate tools.json.
4. Commit your changes.

On GitHub, a workflow regenerates tools.json on pushes to main (and verifies it on pull requests).