Open Tools
About
Open Tools is a lightweight set of small utilities: manual converters, scenario calculators, and documentation-style pages. Everything is designed to be predictable, readable, and fast.
No external dataManual ratesCopy-friendly outputNo ads
Want a walkthrough? See Docs.
What’s inside
Converter
Define your own base unit and rates. Get an instant conversion table.
Pump / Depump
Model an “up then down” move, with optional fees and different result modes.
Exchange chain
Simulate multiple steps with rates + fees and see final output and effective rates.
Docs pages
Simple explanations of the formulas and how to use each tool.
Principles
- Deterministic math: same inputs → same outputs.
- Manual inputs: we don’t fetch prices or rates.
- Readable UI: clear labels, calm layout, mobile friendly.
- Privacy-first: no tracking pixels, no ad networks.
Outputs are for planning and estimation. Always verify critical values independently.
Contact
Keep messages short and include steps to reproduce (if it’s a bug).
Email: support@
Typical response: 24–48h