diff --git a/Cargo.lock b/Cargo.lock
index 4aaa08317..7b0ecdbf9 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -700,9 +700,9 @@ dependencies = [
 
 [[package]]
 name = "brotli"
-version = "8.0.2"
+version = "8.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4bd8b9603c7aa97359dbd97ecf258968c95f3adddd6db2f7e7a5bef101c84560"
+checksum = "8119e4516436f5708bbc474a9d395bf12f1b5395e93a92a56e647ac3388c8610"
 dependencies = [
  "alloc-no-stdlib",
  "alloc-stdlib",
@@ -711,9 +711,9 @@ dependencies = [
 
 [[package]]
 name = "brotli-decompressor"
-version = "5.0.0"
+version = "5.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "874bb8112abecc98cbd6d81ea4fa7e94fb9449648c93cc89aa40c81c24d7de03"
+checksum = "5962523e1b92ce1b5e793d9169b9943eece10d39f62550bc04bb605d75b94924"
 dependencies = [
  "alloc-no-stdlib",
  "alloc-stdlib",
@@ -2082,9 +2082,9 @@ dependencies = [
 
 [[package]]
 name = "mio"
-version = "1.2.0"
+version = "1.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "50b7e5b27aa02a74bac8c3f23f448f8d87ff11f92d3aac1a6ed369ee08cc56c1"
+checksum = "02bd0af71c67b473010cbbc60715ee815645a4dc942899111f494b4b737d6fda"
 dependencies = [
  "libc",
  "wasi",
@@ -2859,9 +2859,9 @@ checksum = "67b1b7a3b5fe4f1376887184045fcf45c69e92af734b7aaddc05fb777b6fbd03"
 
 [[package]]
 name = "socket2"
-version = "0.6.3"
+version = "0.6.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3a766e1110788c36f4fa1c2b71b387a7815aa65f88ce0229841826633d93723e"
+checksum = "52d1cfed4120b4d927bf7c0f86d2087a4a7d6027c906d9f9d525a80573b9be51"
 dependencies = [
  "libc",
  "windows-sys 0.61.2",
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index f25b5b140..0f87b4480 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,2 +1,2 @@
 [toolchain]
-channel = "1.95.0"
+channel = "1.96.0"
diff --git a/website/index.html b/website/index.html
index 67eacc8b3..8a6b9ce4e 100644
--- a/website/index.html
+++ b/website/index.html
@@ -35,6 +35,7 @@
     <link rel="stylesheet" href="/styles/reset.css" />
     <link rel="stylesheet" href="/styles/search.css" />
     <link rel="stylesheet" href="/styles/variables.css" />
+    <link rel="stylesheet" href="/src/heatmap/style.css" />
     <!-- /IMPORTMAP -->
 
     <!-- ------- -->
@@ -149,6 +150,7 @@
     <aside id="aside">
       <div id="explorer" hidden></div>
       <div id="chart" hidden></div>
+      <div id="heatmap" hidden></div>
     </aside>
     <footer>
       <fieldset id="frame-selectors">
diff --git a/website/scripts/_types.js b/website/scripts/_types.js
index 9a988f925..704eac9c8 100644
--- a/website/scripts/_types.js
+++ b/website/scripts/_types.js
@@ -12,7 +12,7 @@
  *
  * @import { Color } from "./utils/colors.js"
  *
- * @import { Option, PartialChartOption, ChartOption, AnyPartialOption, ProcessedOptionAddons, OptionsTree, AnySeriesBlueprint, SeriesType, AnyFetchedSeriesBlueprint, ExplorerOption, UrlOption, PartialOptionsGroup, OptionsGroup, PartialOptionsTree, UtxoCohortObject, AddrCohortObject, CohortObject, CohortGroupObject, FetchedLineSeriesBlueprint, FetchedBaselineSeriesBlueprint, FetchedHistogramSeriesBlueprint, FetchedDotsBaselineSeriesBlueprint, PatternAll, PatternFull, PatternWithAdjusted, PatternWithPercentiles, PatternBasic, PatternBasicWithMarketCap, PatternBasicWithoutMarketCap, PatternWithoutRelative, CohortAll, CohortFull, CohortWithAdjusted, CohortWithPercentiles, CohortBasic, CohortBasicWithMarketCap, CohortBasicWithoutMarketCap, CohortWithoutRelative, CohortAddr, CohortLongTerm, CohortAgeRange, CohortAgeRangeWithMatured, CohortGroupFull, CohortGroupWithAdjusted, CohortGroupWithPercentiles, CohortGroupLongTerm, CohortGroupAgeRange, CohortGroupBasic, CohortGroupBasicWithMarketCap, CohortGroupBasicWithoutMarketCap, CohortGroupWithoutRelative, CohortGroupAddr, UtxoCohortGroupObject, AddrCohortGroupObject, FetchedDotsSeriesBlueprint, FetchedCandlestickSeriesBlueprint, FetchedPriceSeriesBlueprint, AnyPricePattern, AnyValuePattern } from "./options/partial.js"
+ * @import { Option, PartialChartOption, ChartOption, AnyPartialOption, ProcessedOptionAddons, OptionsTree, AnySeriesBlueprint, SeriesType, AnyFetchedSeriesBlueprint, ExplorerOption, UrlOption, PartialOptionsGroup, OptionsGroup, PartialOptionsTree, UtxoCohortObject, AddrCohortObject, CohortObject, CohortGroupObject, FetchedLineSeriesBlueprint, FetchedBaselineSeriesBlueprint, FetchedHistogramSeriesBlueprint, FetchedDotsBaselineSeriesBlueprint, PatternAll, PatternFull, PatternWithAdjusted, PatternWithPercentiles, PatternBasic, PatternBasicWithMarketCap, PatternBasicWithoutMarketCap, PatternWithoutRelative, CohortAll, CohortFull, CohortWithAdjusted, CohortWithPercentiles, CohortBasic, CohortBasicWithMarketCap, CohortBasicWithoutMarketCap, CohortWithoutRelative, CohortAddr, CohortLongTerm, CohortAgeRange, CohortAgeRangeWithMatured, CohortGroupFull, CohortGroupWithAdjusted, CohortGroupWithPercentiles, CohortGroupLongTerm, CohortGroupAgeRange, CohortGroupBasic, CohortGroupBasicWithMarketCap, CohortGroupBasicWithoutMarketCap, CohortGroupWithoutRelative, CohortGroupAddr, UtxoCohortGroupObject, AddrCohortGroupObject, FetchedDotsSeriesBlueprint, HeatmapOption, FetchedCandlestickSeriesBlueprint, FetchedPriceSeriesBlueprint, AnyPricePattern, AnyValuePattern } from "./options/partial.js"
  *
  *
  * @import { UnitObject as Unit } from "./utils/units.js"
diff --git a/website/scripts/main.js b/website/scripts/main.js
index c300ee0fc..44b2024d3 100644
--- a/website/scripts/main.js
+++ b/website/scripts/main.js
@@ -8,6 +8,7 @@ import {
 } from "./panes/chart.js";
 import { init as initExplorer } from "./explorer/index.js";
 import { init as initSearch } from "./panes/search.js";
+import { init as initHeatmap } from "../src/heatmap/index.js";
 import { readStored, removeStored, writeToStorage } from "./utils/storage.js";
 import {
   asideElement,
@@ -20,6 +21,7 @@ import {
   navLabelElement,
   searchElement,
   layoutButtonElement,
+  heatmapElement,
   style,
 } from "./utils/elements.js";
 import { idle } from "./utils/timing.js";
@@ -125,12 +127,15 @@ function initSelected() {
 
     let previousElement = /** @type {HTMLElement | undefined} */ (undefined);
     let firstTimeLoadingChart = true;
+    let firstTimeLoadingHeatmap = true;
     let firstTimeLoadingExplorer = true;
 
     options.selected.onChange((option) => {
       /** @type {HTMLElement | undefined} */
       let element;
 
+      console.log(option);
+
       switch (option.kind) {
         case "explorer": {
           element = explorerElement;
@@ -142,7 +147,21 @@ function initSelected() {
 
           break;
         }
+        case "heatmap": {
+          console.log("heatmap");
+
+          element = heatmapElement;
+
+          if (firstTimeLoadingHeatmap) {
+            initHeatmap(option);
+          }
+          firstTimeLoadingHeatmap = false;
+
+          break;
+        }
         case "chart": {
+          console.log("chart");
+
           element = chartElement;
 
           if (firstTimeLoadingChart) {
diff --git a/website/scripts/options/full.js b/website/scripts/options/full.js
index 9bc9f1714..dca102ab3 100644
--- a/website/scripts/options/full.js
+++ b/website/scripts/options/full.js
@@ -311,6 +311,14 @@ export function initOptions() {
           option.kind = anyPartial.kind;
           option.path = [];
           option.name = name;
+        } else if ("kind" in anyPartial && anyPartial.kind === "heatmap") {
+          Object.assign(
+            option,
+            /** @satisfies {HeatmapOption} */ ({
+              ...anyPartial,
+              path,
+            }),
+          );
         } else if ("url" in anyPartial) {
           Object.assign(
             option,
diff --git a/website/scripts/options/partial.js b/website/scripts/options/partial.js
index 0a0e50e51..69472f05e 100644
--- a/website/scripts/options/partial.js
+++ b/website/scripts/options/partial.js
@@ -63,6 +63,7 @@ export function createPartialOptions() {
       kind: "explorer",
       title: "Explorer",
     },
+
     {
       name: "Charts",
       tree: [
@@ -295,6 +296,17 @@ export function createPartialOptions() {
       ],
     },
 
+    {
+      name: "Heatmaps",
+      tree: [
+        {
+          kind: "heatmap",
+          name: "name",
+          title: "name",
+        },
+      ],
+    },
+
     {
       name: "API",
       url: () => "/api",
diff --git a/website/scripts/options/types.js b/website/scripts/options/types.js
index 176800a9b..4b7b4cc73 100644
--- a/website/scripts/options/types.js
+++ b/website/scripts/options/types.js
@@ -104,6 +104,14 @@
  *
  * @typedef {Required<Omit<PartialChartOption, "top" | "bottom">> & ProcessedChartOptionAddons & ProcessedOptionAddons} ChartOption
  *
+ * @typedef {Object} PartialHeatmapOptionSpecific
+ * @property {"heatmap"} kind
+ * @property {string} title
+ *
+ * @typedef {PartialOption & PartialHeatmapOptionSpecific} PartialHeatmapOption
+ *
+ * @typedef {Required<PartialHeatmapOption> & ProcessedOptionAddons} HeatmapOption
+ *
  * @typedef {Object} PartialUrlOptionSpecific
  * @property {"link"} [kind]
  * @property {() => string} url
@@ -114,9 +122,9 @@
  *
  * @typedef {Required<PartialUrlOption> & ProcessedOptionAddons} UrlOption
  *
- * @typedef {PartialExplorerOption | PartialChartOption | PartialUrlOption} AnyPartialOption
+ * @typedef {PartialExplorerOption | PartialChartOption | PartialUrlOption | PartialHeatmapOption} AnyPartialOption
  *
- * @typedef {ExplorerOption | ChartOption | UrlOption} Option
+ * @typedef {ExplorerOption | ChartOption | UrlOption | HeatmapOption} Option
  *
  * @typedef {(AnyPartialOption | PartialOptionsGroup)[]} PartialOptionsTree
  *
@@ -324,7 +332,6 @@
  *
  * @typedef {UtxoCohortObject | AddrCohortObject | CohortWithoutRelative} CohortObject
  *
- *
  * @typedef {Object} AddrCohortGroupObject
  * @property {string} name
  * @property {string} title
diff --git a/website/scripts/utils/elements.js b/website/scripts/utils/elements.js
index 6fbba6e61..489b2fbbe 100644
--- a/website/scripts/utils/elements.js
+++ b/website/scripts/utils/elements.js
@@ -11,6 +11,7 @@ export const searchElement = getElementById("search");
 export const navElement = getElementById("nav");
 export const chartElement = getElementById("chart");
 export const explorerElement = getElementById("explorer");
+export const heatmapElement = getElementById("heatmap");
 
 export const asideLabelElement = getElementById("aside-selector-label");
 export const navLabelElement = getElementById(`nav-selector-label`);
diff --git a/website/src/heatmap/index.js b/website/src/heatmap/index.js
new file mode 100644
index 000000000..cb60800a0
--- /dev/null
+++ b/website/src/heatmap/index.js
@@ -0,0 +1,140 @@
+import { createHeader } from "../../scripts/utils/dom.js";
+import { heatmapElement } from "../../scripts/utils/elements.js";
+import { debounce, next } from "../../scripts/utils/timing.js";
+
+/**
+ * @param {HeatmapOption} option
+ */
+export async function init(option) {
+  const { headerElement, headingElement } = createHeader();
+  headingElement.innerHTML = option.title;
+  heatmapElement.append(headerElement);
+
+  const canvas = document.createElement("canvas");
+  heatmapElement.append(canvas);
+  await next();
+
+  let renderer = createRenderer(canvas);
+
+  function randomColor() {
+    // Inferno-ish: just random for now
+    const r = (Math.random() * 255) | 0;
+    const g = (Math.random() * 100) | 0;
+    const b = (Math.random() * 200) | 0;
+    return 0xff000000 | (b << 16) | (g << 8) | r; // ABGR
+  }
+
+  /**
+   * @param {number} col
+   * @param {number} row
+   */
+  function getColor(col, row) {
+    return randomColor();
+  }
+
+  function render() {
+    renderer.paint(100, 100, getColor);
+  }
+
+  const { width, height } = canvas.getBoundingClientRect();
+  if (renderer.resize(width, height)) {
+    render();
+  }
+
+  new ResizeObserver(
+    debounce(() => {
+      const { width, height } = canvas.getBoundingClientRect();
+      if (width && height && renderer.resize(width, height)) {
+        render();
+      }
+    }, 1000),
+  ).observe(heatmapElement);
+}
+
+/** @param {HTMLCanvasElement} */
+export function createRenderer(canvas) {
+  const context = canvas.getContext("2d");
+  if (!context) throw "Expected context from canvas";
+  let width = 0;
+  let height = 0;
+  let imageData = new ImageData(1, 1);
+  let buffer = new Uint32Array();
+
+  return {
+    /**
+     * @param {number} w
+     * @param {number} h
+     * @returns {boolean} wether the canvas was actually resized (true) or not (false)
+     */
+    resize(w, h) {
+      if (w == width && h == height) return false;
+      const bound = canvas.getBoundingClientRect();
+      width = Math.floor(Math.min(w, bound.width));
+      height = Math.floor(Math.min(h, bound.height));
+      canvas.width = width;
+      canvas.height = height;
+      imageData = context.createImageData(width, height);
+      buffer = new Uint32Array(imageData.data.buffer);
+      return true;
+    },
+
+    get width() {
+      return width;
+    },
+    get height() {
+      return height;
+    },
+
+    /**
+     * Full repaint: iterate all cells, colorize, one blit.
+     * @param {number} cols
+     * @param {number} rows
+     * @param {(col: number, row: number) => number} getColor - returns ABGR uint32
+     */
+    paint(cols, rows, getColor) {
+      const colX = new Int32Array(cols + 1);
+      for (let c = 0; c <= cols; c++) colX[c] = ((c * width) / cols + 0.5) | 0;
+      const rowY = new Int32Array(rows + 1);
+      for (let r = 0; r <= rows; r++) rowY[r] = ((r * height) / rows + 0.5) | 0;
+
+      for (let c = 0; c < cols; c++) {
+        const x0 = colX[c];
+        const x1 = colX[c + 1];
+        for (let r = 0; r < rows; r++) {
+          const color = getColor(c, r);
+          const y0 = rowY[r];
+          const y1 = rowY[r + 1];
+          for (let y = y0; y < y1; y++) {
+            buffer.fill(color, y * width + x0, y * width + x1);
+          }
+        }
+      }
+      context.putImageData(imageData, 0, 0);
+    },
+
+    /**
+     * Incremental repaint: only dirty columns, blit each separately.
+     * @param {number} cols
+     * @param {number} rows
+     * @param {Iterable<number>} dirty
+     * @param {(col: number, row: number) => number} getColor
+     */
+    paintCols(cols, rows, dirty, getColor) {
+      const colW = width / cols;
+      const rowH = height / rows;
+      for (const c of dirty) {
+        const x0 = (c * colW) | 0;
+        const x1 = Math.min(width, ((c + 1) * colW) | 0);
+        for (let r = 0; r < rows; r++) {
+          const color = getColor(c, r);
+          const y0 = (r * rowH) | 0;
+          const y1 = Math.min(height, ((r + 1) * rowH) | 0);
+          for (let y = y0; y < y1; y++) {
+            buffer.fill(color, y * width + x0, y * width + x1);
+          }
+        }
+        context.putImageData(imageData, 0, 0, x0, 0, x1 - x0, height);
+      }
+    },
+  };
+}
diff --git a/website/src/heatmap/style.css b/website/src/heatmap/style.css
new file mode 100644
index 000000000..226a65e9f
--- /dev/null
+++ b/website/src/heatmap/style.css
@@ -0,0 +1,11 @@
+#heatmap {
+  height: 100%;
+  display: flex;
+  flex-direction: column;
+
+  canvas {
+    display: block;
+    width: 100%;
+    height: 100%;
+  }
+}