CapyCalc: Calculators & Planning Tools for CapybaraGo

I created CapyCalc as a suite of free, browser-based tools to help CapybaraGo players make better decisions about their characters. What began as a single damage calculator grew into eleven distinct tools spanning character planning, simulation, OCR-driven prediction, and event-progression forecasting.

The design priorities were speed of comprehension and density without clutter. Players come with a specific question in mind and need to evaluate the answer at a glance. I worked in a calm dark palette with restrained gold and blue accents, letting visual hierarchy carry the load instead of decorative colour. Every numeric output earns its place: charts include thresholds and breakpoints, comparison tables surface a delta column prominently, and inputs sit visually paired with their downstream impact through sticky positioning and tight grid layouts.

A central decision was how to expose depth without overwhelming new players. Each tool launches as a focused single-purpose page rather than a tab inside a larger app, with its own URL and shareable Discord preview.

Completed builds can be exported as 1400x900 share cards generated entirely in-browser, designed to look polished embedded in screenshots and leaderboards. The PvP Predictor uses OCR so players can drop two stat-screen screenshots and get a side-by-side comparison plus a damage-formula winner prediction, turning tedious manual transcription into a two-tap interaction.

The site is hosted on Cloudflare Pages with a thin Workers backend for shared-build links. No framework, vanilla JavaScript throughout. That constraint forced a disciplined component design and produced a consistent visual language across very different interaction models (sliders, dropdowns, image uploads, draggable build slots). CapyCalc currently serves an active community of players across multiple cross-server groups and continues to evolve with game patches and player requests.

CapyCalc is a personal project, but it serves a real and growing audience. Cloudflare's analytics show more than 42,000 unique visitors across a typical 30-day window, peaking around 4,400 on a single day and rarely dropping below 1,000. That traffic is entirely organic: no advertising and no paid promotion, just word of mouth through the game's community and search.

The audience is genuinely global. In a single month the tools fielded over 650,000 requests from the United States, 324,000 from Indonesia, 214,000 from Singapore, 203,000 from South Korea and 178,000 from Vietnam, closely tracking where CapybaraGo is actually played rather than any one region I set out to target.

Search is a major driver, and the decision to ship each tool as its own focused page with its own URL paid off directly. Over three months Google Search Console recorded 32,100 impressions and 4,630 clicks: a 14.4% click-through rate at an average position of 6.4. A click-through rate that high at that ranking tells me the page titles and share previews are earning the click; people searching for a specific answer see CapyCalc and recognise it as the thing that will give it to them.