CalcVerse is a collection of utilities (PDF manipulation, finance/math calculators, image tools) that runs entirely in the browser. There are no ads, no signups, and files/inputs are never sent to a server.

I focused heavily on using Web APIs and client-side libraries to ensure data privacy. For example, PDF and image tools are powered by libraries like jspdf and canvas manipulation, processing files in memory. All 500+ calculators are implemented as pure TypeScript functions.

Key Features:

Calculator Builder: You can chain inputs/outputs. For example, pipe the result of a "Paint Coverage" calculator directly into a "Budget" calculator to create custom workflows.

Space-Themed Tracker: Turn goals into a space mission. Logging daily habits or targets unlocks new cosmic sectors and UI themes as you progress.

Productivity: Includes global search, a favorites system, custom workflows, and multilingual support.

Project Folders: Save the state of multiple calculators into a local project folder (persisted via localStorage).

I’d appreciate feedback on performance/UX, edge cases where client-side file processing might be unstable, and suggestions for specific engineering tools I should add next.

Try it here: https://calc-verse.com