Crypto Heatmap
The whole crypto market on a single screen, grouped by sector. Tile size = market cap, colour = price change. Click any coin for the full details panel, or switch to the sector view.
How to read this
Each tile is one cryptocurrency. Size is proportional to market cap — Bitcoin dominates, smaller alts get smaller tiles. Green = up on the chosen timeframe, red = down, dark gray = flat; saturation grows with magnitude. Toggle Sector for a sector-cap treemap, or Flat for a single squarified layout.
Frequently Asked Questions
What is a crypto heatmap?
A crypto heatmap is a treemap visualisation of the cryptocurrency market in a single screen. Each coin is drawn as a rectangle whose size encodes a quantitative attribute — usually market capitalisation or trading volume — and whose colour encodes its recent price change (green for gains, red for losses). Heatmaps make it easy to see at a glance which sectors of the market are leading or lagging without scrolling through long tables.
How is tile size determined?
By default tile size is proportional to market capitalisation — the larger a coin's market cap, the larger its rectangle. You can switch the size metric to 24-hour trading volume using the toolbar, which surfaces coins that are punching above their weight in current activity. The treemap algorithm packs rectangles to fill the available area while preserving relative size, so a tile twice as big represents roughly twice the underlying metric.
What do the colours mean?
Colour encodes the percentage price change over the selected timeframe. Green indicates a gain, red indicates a loss, and grey indicates a flat or near-flat move. Colour intensity scales with the magnitude of the change — a deep red tile means a sharp drop, a light green tile means a small gain. You can toggle the timeframe between 1 hour, 24 hours, 7 days and 30 days to compare short-term momentum against medium-term trends.
How often is the data updated?
The heatmap pulls market data from CoinGecko via a Cloudflare Worker proxy that refreshes on a short interval, so prices and percentage changes are typically within a couple of minutes of the spot market. The KPI strip above the heatmap (total market cap, 24h volume, BTC dominance) refreshes on the same cadence. This is not suitable for sub-second trading decisions, but it is fine for portfolio overview and sector rotation analysis.