Certificate Generator
Certificate of authenticity workstation with dynamic gemstone rows, pricing JSON import, and print-ready PDF output.
OpenTools
OpenTools
Useful systems earn their place when they survive real pressure.
Practical tools, AI settings, and reusable skills kept as a working reference instead of buried in chat history.
Tool Index
Billing
Hanzu Invoice
Open Source
Rhino Grasshopper Codex
Thai Bank Parser
Reference
AI Settings
Skills Library
Jewelry Production
4 toolsJeweler Invoice 2.0
Production-aware item costing and jewelry-specific invoice documents for factory and retail workflows.
Jewelry Pricing
Multi-material pricing for client quotes and internal worksheets with BOM, labor, QC, risk, and margin records.
Wastage Tracker
Local-first tracker for casting input, stage losses, stone adjustments, finished weight, and unaccounted loss.
Billing
1 toolHanzu Invoice
Invoice workstation for digital and intellectual deliverables with client-ready PDF output and accountant-friendly JSON records.
Open Source
2 reposDesign
Small Interface
Pages stay simple. The depth lives behind the dropdowns, tools, and references.
Execution
Evidence First
The workflow favors running code, tests, logs, source inspection, and visible outputs.
Library
Skills Stay Open
Each skill can be opened directly on the Skills page and read without leaving the site.
Directive
Keep OpenTools as the public reference layer for useful software, AI settings, and reusable skills.
Remove noise. Keep the interface small. Let the depth open only when someone asks for it.