diff --git a/libs/index.md b/libs/index.md
index 31046d6..86d8206 100644
--- a/libs/index.md
+++ b/libs/index.md
@@ -141,6 +141,12 @@ Available icons:
       ['coverage', '/codecov/c/github/tunnckoCore/gitcommit'],
       ['coverage (branch)', '/codecov/c/github/babel/babel/6.x']
     ],
+    coveralls: [
+      ['coverage (github)', '/coveralls/c/github/jekyll/jekyll'],
+      ['coverage (github, branch)', '/coveralls/c/github/jekyll/jekyll/master'],
+      ['coverage (bitbucket)', '/coveralls/c/bitbucket/pyKLIP/pyklip'],
+      ['coverage (bitbucket, branch)', '/coveralls/c/bitbucket/pyKLIP/pyklip/master'],
+    ],
     'david-dm': [
       ['dependencies', '/david/dep/zeit/pkg'],
       ['dev dependencies', '/david/dev/zeit/pkg'],
diff --git a/libs/live-fns/_index.js b/libs/live-fns/_index.js
index dbd5cfa..8ff48c5 100644
--- a/libs/live-fns/_index.js
+++ b/libs/live-fns/_index.js
@@ -5,6 +5,7 @@ module.exports = {
   'chrome-web-store': require('./chrome-web-store.js'),
   'circleci': require('./circleci.js'),
   'codecov': require('./codecov.js'),
+  'coveralls': require('./coveralls.js'),
   'crates': require('./crates.js'),
   'david': require('./david.js'),
   'docker': require('./docker.js'),
diff --git a/libs/live-fns/codecov.js b/libs/live-fns/codecov.js
index dabec2e..2251c8b 100644
--- a/libs/live-fns/codecov.js
+++ b/libs/live-fns/codecov.js
@@ -1,4 +1,5 @@
 const axios = require('../axios.js')
+const covColor = require('../utils/cov-color.js')
 
 // https://codecov.io/gh/user/repo/settings/badge
 
@@ -21,22 +22,6 @@ module.exports = async function codecov (topic, ...args) {
   }
 }
 
-function getColor (value, orange = 70, yellow = 85, green = 100) {
-  if (value <= 0) {
-    return 'red'
-  }
-  if (value < orange) {
-    return 'ef6c00'
-  }
-  if (value < yellow) {
-    return 'c0ca33'
-  }
-  if (value < green) {
-    return 'a4a61d'
-  }
-  return 'green'
-}
-
 async function coverage (vscType, user, repo, branch) {
   branch = typeof branch === 'string' && branch.length > 0 ? branch : 'master'
 
@@ -53,11 +38,9 @@ async function coverage (vscType, user, repo, branch) {
     }
   }
 
-  const color = getColor(+status)
-
   return {
     subject: 'codecov',
     status: `${status}%`,
-    color
+    color: covColor(status)
   }
 }
diff --git a/libs/live-fns/coveralls.js b/libs/live-fns/coveralls.js
new file mode 100644
index 0000000..8dec10c
--- /dev/null
+++ b/libs/live-fns/coveralls.js
@@ -0,0 +1,18 @@
+const axios = require('../axios.js')
+const covColor = require('../utils/cov-color.js')
+
+module.exports = async function (topic, platform, user, repo, branch) {
+  // only support topic="c" fow now
+
+  const query = branch ? `?branch=${branch}` : ''
+  const endpoint = `https://coveralls.io/${platform}/${user}/${repo}.json${query}`
+
+  /* eslint-disable camelcase */
+  const { covered_percent } = await axios.get(endpoint).then(res => res.data)
+
+  return {
+    subject: 'coverage',
+    status: Number(covered_percent).toFixed(2) + '%',
+    color: covColor(covered_percent)
+  }
+}
diff --git a/libs/serve-index.js b/libs/serve-index.js
index 1702fec..f374b60 100644
--- a/libs/serve-index.js
+++ b/libs/serve-index.js
@@ -25,7 +25,7 @@ module.exports = serveMarked('libs/index.md', {
     dt a:hover:before { left: -1.2em; font: 20px/20px Arial; vertical-align: middle; color: #CCC }
     dd { font: 14px/20px monospace; vertical-align: top; height: 28px; white-space: nowrap; margin: 0 }
     dd img { vertical-align: top }
-    dd b { display: inline-block; min-width: 14em; text-align: right; font-weight: 300 }
+    dd b { display: inline-block; min-width: 17em; text-align: right; font-weight: 300 }
     dd i { display: inline-block; min-width: 13em }
   `,
   beforeHeadEnd: `<link rel="icon" type="image/svg+xml" href="/favicon.svg">`,
diff --git a/libs/utils/cov-color.js b/libs/utils/cov-color.js
new file mode 100644
index 0000000..e1046da
--- /dev/null
+++ b/libs/utils/cov-color.js
@@ -0,0 +1,24 @@
+/**
+ * Generate color from coverage number
+ *
+ * @param {Number} value
+ * @param {Number} orange
+ * @param {Number} yellow
+ * @param {Number} green
+ */
+
+module.exports = function cc (value, orange = 70, yellow = 85, green = 100) {
+  if (value <= 0) {
+    return 'red'
+  }
+  if (value < orange) {
+    return 'ef6c00'
+  }
+  if (value < yellow) {
+    return 'c0ca33'
+  }
+  if (value < green) {
+    return 'a4a61d'
+  }
+  return 'green'
+}