⚡️Crypto Watch ⚡️

💹 Crypto Watch — Vanilla JS + CoinGecko (no build tools)
A sleek, single-file crypto dashboard that runs entirely in your browser. Add coins to your watchlist, peek at the Top 25, and track price, 1h/24h/7d %, market cap, volume, and a tiny 7-day sparkline for each coin.

Features

• Watchlist with quick add via search (name or symbol)

• Explore Top 25 by market cap

• USD / EUR currency toggle

• Per-row sparkline (no libraries)

• Manual Refresh + auto refresh every 60s with “Updated … ago” note

• Local saving (watchlist stays in your browser)

• Responsive UI, sticky header, and own scroll area (itch.io-friendly)

• No frameworks, just one HTML file

How to use

• Type a coin (e.g., “btc”, “ethereum”) → click Add → star toggles favorite.

• Switch tabs: Watchlist / Explore Top 25.

• Change currency in the dropdown.

• Hit Refresh any time.

Data & Credits

• Live data by CoinGecko (free public API).

• This is a personal tool for tracking — not financial advice.

Privacy

• No accounts, no tracking. Your watchlist is stored locally in your browser.

Known limits

• If you see “Could not fetch market data,” it’s usually a temporary rate limit. Wait a moment and hit Refresh.