Five free browser tools I built alongside my Android apps (no sign-up, no tracking)

I run a one person Android studio called Dope Capybara. Alongside the apps, I keep building small web tools that solve one problem each and require nothing from the visitor. No account, no email capture, no cookie banner asking for marketing consent.

Here is what's live right now.

Year Progress

A live bar showing what percentage of the current year has passed, plus a countdown to the next one. Recalculates client side, no API calls.

https://www.dopecapybara.com/tools/year-progress

Life in Weeks

Enter your birthday, see your life as a grid of weeks. Based on Tim Urban's idea. Shows weeks lived next to weeks remaining, all computed in the browser.

https://www.dopecapybara.com/tools/life-in-weeks

Flags Quiz

Ten rounds, one flag per round, four country options. Instant scoring, no account needed to see your result.

https://www.dopecapybara.com/tools/flags-quiz

Photo Enhancer

Sharpens and brightens a photo using canvas, entirely in the browser. The image never leaves your device, because there is no upload step to begin with. Before/after slider so you can see what changed.

https://www.dopecapybara.com/tools/photo-enhancer

Picture Memory Game

Classic match the pairs, four illustrated themes, optional timer.

https://www.dopecapybara.com/tools/memory-game

Why bother with tools that don't monetize directly

Two reasons. First, they're genuinely useful for the five minutes someone needs them, and that's enough of a reason on its own. Second, each one is a small, well scoped project I can ship in a weekend, which keeps me in practice building and shipping instead of only maintaining the existing Android apps.

All five run as static pages, no backend, no database. If you want to see the source approach or have feedback on any of them, I'm in the comments.