diff --git a/packages/babel-compiler/.npm/package/.gitignore b/packages/babel-compiler/.npm/package/.gitignore
new file mode 100644
index 0000000000..3c3629e647
--- /dev/null
+++ b/packages/babel-compiler/.npm/package/.gitignore
@@ -0,0 +1 @@
+node_modules
diff --git a/packages/babel-compiler/.npm/package/README b/packages/babel-compiler/.npm/package/README
new file mode 100644
index 0000000000..3d492553a4
--- /dev/null
+++ b/packages/babel-compiler/.npm/package/README
@@ -0,0 +1,7 @@
+This directory and the files immediately inside it are automatically generated
+when you change this package's NPM dependencies. Commit the files in this
+directory (npm-shrinkwrap.json, .gitignore, and this README) to source control
+so that others run the same versions of sub-dependencies.
+
+You should NOT check in the node_modules directory that Meteor automatically
+creates; if you are using git, the .gitignore file tells git to ignore it.
diff --git a/packages/babel-compiler/.npm/package/npm-shrinkwrap.json b/packages/babel-compiler/.npm/package/npm-shrinkwrap.json
new file mode 100644
index 0000000000..29d0a3b6c5
--- /dev/null
+++ b/packages/babel-compiler/.npm/package/npm-shrinkwrap.json
@@ -0,0 +1,442 @@
+{
+  "dependencies": {
+    "meteor-babel": {
+      "version": "0.4.3",
+      "dependencies": {
+        "babel-core": {
+          "version": "5.7.1",
+          "dependencies": {
+            "babel-plugin-constant-folding": {
+              "version": "1.0.1"
+            },
+            "babel-plugin-dead-code-elimination": {
+              "version": "1.0.2"
+            },
+            "babel-plugin-eval": {
+              "version": "1.0.1"
+            },
+            "babel-plugin-inline-environment-variables": {
+              "version": "1.0.1"
+            },
+            "babel-plugin-jscript": {
+              "version": "1.0.1"
+            },
+            "babel-plugin-member-expression-literals": {
+              "version": "1.0.1"
+            },
+            "babel-plugin-property-literals": {
+              "version": "1.0.1"
+            },
+            "babel-plugin-proto-to-assign": {
+              "version": "1.0.3"
+            },
+            "babel-plugin-react-constant-elements": {
+              "version": "1.0.3"
+            },
+            "babel-plugin-react-display-name": {
+              "version": "1.0.3"
+            },
+            "babel-plugin-remove-console": {
+              "version": "1.0.1"
+            },
+            "babel-plugin-remove-debugger": {
+              "version": "1.0.1"
+            },
+            "babel-plugin-runtime": {
+              "version": "1.0.7"
+            },
+            "babel-plugin-undeclared-variables-check": {
+              "version": "1.0.2",
+              "dependencies": {
+                "leven": {
+                  "version": "1.0.2"
+                }
+              }
+            },
+            "babel-plugin-undefined-to-void": {
+              "version": "1.1.6"
+            },
+            "babylon": {
+              "version": "5.7.1"
+            },
+            "bluebird": {
+              "version": "2.9.34"
+            },
+            "chalk": {
+              "version": "1.1.0",
+              "dependencies": {
+                "ansi-styles": {
+                  "version": "2.1.0"
+                },
+                "escape-string-regexp": {
+                  "version": "1.0.3"
+                },
+                "has-ansi": {
+                  "version": "2.0.0",
+                  "dependencies": {
+                    "ansi-regex": {
+                      "version": "2.0.0"
+                    }
+                  }
+                },
+                "strip-ansi": {
+                  "version": "3.0.0",
+                  "dependencies": {
+                    "ansi-regex": {
+                      "version": "2.0.0"
+                    }
+                  }
+                },
+                "supports-color": {
+                  "version": "2.0.0"
+                }
+              }
+            },
+            "core-js": {
+              "version": "0.9.18"
+            },
+            "debug": {
+              "version": "2.2.0",
+              "dependencies": {
+                "ms": {
+                  "version": "0.7.1"
+                }
+              }
+            },
+            "detect-indent": {
+              "version": "3.0.1",
+              "dependencies": {
+                "get-stdin": {
+                  "version": "4.0.1"
+                },
+                "minimist": {
+                  "version": "1.1.1"
+                }
+              }
+            },
+            "estraverse": {
+              "version": "4.1.0"
+            },
+            "esutils": {
+              "version": "2.0.2"
+            },
+            "fs-readdir-recursive": {
+              "version": "0.1.2"
+            },
+            "globals": {
+              "version": "6.4.1"
+            },
+            "home-or-tmp": {
+              "version": "1.0.0",
+              "dependencies": {
+                "os-tmpdir": {
+                  "version": "1.0.1"
+                },
+                "user-home": {
+                  "version": "1.1.1"
+                }
+              }
+            },
+            "is-integer": {
+              "version": "1.0.4",
+              "dependencies": {
+                "is-finite": {
+                  "version": "1.0.1",
+                  "dependencies": {
+                    "number-is-nan": {
+                      "version": "1.0.0"
+                    }
+                  }
+                },
+                "is-nan": {
+                  "version": "1.1.0",
+                  "dependencies": {
+                    "define-properties": {
+                      "version": "1.1.0",
+                      "dependencies": {
+                        "foreach": {
+                          "version": "2.0.5"
+                        },
+                        "object-keys": {
+                          "version": "1.0.6"
+                        }
+                      }
+                    }
+                  }
+                }
+              }
+            },
+            "js-tokens": {
+              "version": "1.0.1"
+            },
+            "line-numbers": {
+              "version": "0.2.0",
+              "dependencies": {
+                "left-pad": {
+                  "version": "0.0.3"
+                }
+              }
+            },
+            "lodash": {
+              "version": "3.10.0"
+            },
+            "minimatch": {
+              "version": "2.0.8",
+              "dependencies": {
+                "brace-expansion": {
+                  "version": "1.1.0",
+                  "dependencies": {
+                    "balanced-match": {
+                      "version": "0.2.0"
+                    },
+                    "concat-map": {
+                      "version": "0.0.1"
+                    }
+                  }
+                }
+              }
+            },
+            "output-file-sync": {
+              "version": "1.1.1",
+              "dependencies": {
+                "mkdirp": {
+                  "version": "0.5.1",
+                  "dependencies": {
+                    "minimist": {
+                      "version": "0.0.8"
+                    }
+                  }
+                },
+                "xtend": {
+                  "version": "4.0.0"
+                }
+              }
+            },
+            "path-exists": {
+              "version": "1.0.0"
+            },
+            "path-is-absolute": {
+              "version": "1.0.0"
+            },
+            "private": {
+              "version": "0.1.6"
+            },
+            "regenerator": {
+              "version": "0.8.34",
+              "dependencies": {
+                "commoner": {
+                  "version": "0.10.3",
+                  "dependencies": {
+                    "q": {
+                      "version": "1.1.2"
+                    },
+                    "commander": {
+                      "version": "2.5.1"
+                    },
+                    "graceful-fs": {
+                      "version": "3.0.8"
+                    },
+                    "glob": {
+                      "version": "4.2.2",
+                      "dependencies": {
+                        "inflight": {
+                          "version": "1.0.4",
+                          "dependencies": {
+                            "wrappy": {
+                              "version": "1.0.1"
+                            }
+                          }
+                        },
+                        "inherits": {
+                          "version": "2.0.1"
+                        },
+                        "minimatch": {
+                          "version": "1.0.0",
+                          "dependencies": {
+                            "lru-cache": {
+                              "version": "2.6.5"
+                            },
+                            "sigmund": {
+                              "version": "1.0.1"
+                            }
+                          }
+                        },
+                        "once": {
+                          "version": "1.3.2",
+                          "dependencies": {
+                            "wrappy": {
+                              "version": "1.0.1"
+                            }
+                          }
+                        }
+                      }
+                    },
+                    "mkdirp": {
+                      "version": "0.5.1",
+                      "dependencies": {
+                        "minimist": {
+                          "version": "0.0.8"
+                        }
+                      }
+                    },
+                    "install": {
+                      "version": "0.1.8"
+                    },
+                    "iconv-lite": {
+                      "version": "0.4.11"
+                    }
+                  }
+                },
+                "defs": {
+                  "version": "1.1.0",
+                  "dependencies": {
+                    "alter": {
+                      "version": "0.2.0",
+                      "dependencies": {
+                        "stable": {
+                          "version": "0.1.5"
+                        }
+                      }
+                    },
+                    "ast-traverse": {
+                      "version": "0.1.1"
+                    },
+                    "breakable": {
+                      "version": "1.0.0"
+                    },
+                    "esprima-fb": {
+                      "version": "8001.1001.0-dev-harmony-fb"
+                    },
+                    "simple-fmt": {
+                      "version": "0.1.0"
+                    },
+                    "simple-is": {
+                      "version": "0.2.0"
+                    },
+                    "stringmap": {
+                      "version": "0.2.2"
+                    },
+                    "stringset": {
+                      "version": "0.2.1"
+                    },
+                    "tryor": {
+                      "version": "0.1.2"
+                    },
+                    "yargs": {
+                      "version": "1.3.3"
+                    }
+                  }
+                },
+                "esprima-fb": {
+                  "version": "13001.1.0-dev-harmony-fb"
+                },
+                "recast": {
+                  "version": "0.10.18",
+                  "dependencies": {
+                    "esprima-fb": {
+                      "version": "14001.1.0-dev-harmony-fb"
+                    },
+                    "ast-types": {
+                      "version": "0.8.2"
+                    }
+                  }
+                },
+                "through": {
+                  "version": "2.3.8"
+                }
+              }
+            },
+            "regexpu": {
+              "version": "1.2.0",
+              "dependencies": {
+                "recast": {
+                  "version": "0.10.21",
+                  "dependencies": {
+                    "esprima-fb": {
+                      "version": "15001.1.0-dev-harmony-fb"
+                    },
+                    "ast-types": {
+                      "version": "0.8.3"
+                    }
+                  }
+                },
+                "regenerate": {
+                  "version": "1.2.1"
+                },
+                "regjsgen": {
+                  "version": "0.2.0"
+                },
+                "regjsparser": {
+                  "version": "0.1.4",
+                  "dependencies": {
+                    "jsesc": {
+                      "version": "0.5.0"
+                    }
+                  }
+                }
+              }
+            },
+            "repeating": {
+              "version": "1.1.3",
+              "dependencies": {
+                "is-finite": {
+                  "version": "1.0.1",
+                  "dependencies": {
+                    "number-is-nan": {
+                      "version": "1.0.0"
+                    }
+                  }
+                }
+              }
+            },
+            "resolve": {
+              "version": "1.1.6"
+            },
+            "shebang-regex": {
+              "version": "1.0.0"
+            },
+            "slash": {
+              "version": "1.0.0"
+            },
+            "source-map": {
+              "version": "0.4.4",
+              "dependencies": {
+                "amdefine": {
+                  "version": "1.0.0"
+                }
+              }
+            },
+            "source-map-support": {
+              "version": "0.2.10",
+              "dependencies": {
+                "source-map": {
+                  "version": "0.1.32",
+                  "dependencies": {
+                    "amdefine": {
+                      "version": "1.0.0"
+                    }
+                  }
+                }
+              }
+            },
+            "strip-json-comments": {
+              "version": "1.0.2"
+            },
+            "to-fast-properties": {
+              "version": "1.0.1"
+            },
+            "trim-right": {
+              "version": "1.0.0"
+            }
+          }
+        },
+        "convert-source-map": {
+          "version": "1.1.1"
+        },
+        "meteor-async-await": {
+          "version": "0.1.1"
+        }
+      }
+    }
+  }
+}
diff --git a/packages/babel-compiler/README.md b/packages/babel-compiler/README.md
new file mode 100644
index 0000000000..6e29e0b0f1
--- /dev/null
+++ b/packages/babel-compiler/README.md
@@ -0,0 +1,50 @@
+[Babel](http://babeljs.io/) is a parser and transpiler for ECMAScript 2015
+syntax and beyond, which enables some upcoming JavaScript syntax features
+to be used in today's browsers and runtimes.
+
+Meteor's Babel support consists of the following core packages:
+
+* `babel-compiler` - Exposes the [Babel API](https://babeljs.io/docs/usage/api/)
+  on the symbol `Babel`.  For example, `Babel.compile(source, options)`.
+
+* `babel-runtime` - Meteor versions of the external helpers used by
+  Babel-generated code.  Meteor's core packages must run on IE 8 without
+  polyfills, so these helpers cannot assume the existence of
+  `Object.defineProperty`, `Object.freeze`, and so on.
+
+### Babel API
+
+The `babel-compiler` package exports the `Babel` symbol, which exposes
+functionality provided by the
+[`meteor-babel`](https://www.npmjs.com/package/meteor-babel) NPM package,
+which is in turn implmented using the
+[`babel-core`](https://www.npmjs.com/package/babel-core) NPM package.
+Note that you can only use the `babel-compiler` package on the server.
+
+Example:
+
+```js
+var babelOptions = Babel.getDefaultOptions();
+
+// Modify the default options, if necessary:
+babelOptions.whitelist = [
+  "es6.blockScoping", // For `let`
+  "es6.arrowFunctions" // For `=>`
+];
+
+var result = Babel.compile(
+  "let square = (x) => x*x;",
+  babelOptions
+);
+
+// result.code will be something like
+// "var square = function (x) {\n  return x * x;\n};"
+```
+
+Use `Babel.compile(source)` to transpile code using a set of default
+options that work well for Meteor code.
+
+Resources:
+
+* [API docs](https://babeljs.io/docs/usage/api/)
+* [List of transformers](https://babeljs.io/docs/usage/transformers/)
diff --git a/packages/babel-compiler/babel.js b/packages/babel-compiler/babel.js
new file mode 100644
index 0000000000..98b66f057d
--- /dev/null
+++ b/packages/babel-compiler/babel.js
@@ -0,0 +1,61 @@
+var meteorBabel = Npm.require('meteor-babel');
+
+/**
+ * Returns a new object containing default options appropriate for
+ */
+function getDefaultOptions(extraFeatures) {
+  if (extraFeatures) {
+    check(extraFeatures, {
+      // Modify options to enable ES2015 module syntax.
+      modules: Match.Optional(Boolean),
+      // Modify options to enable async/await syntax powered by Fibers.
+      meteorAsyncAwait: Match.Optional(Boolean)
+    });
+  }
+
+  // See https://github.com/meteor/babel/blob/master/options.js for more
+  // information about what the default options are.
+  var options = meteorBabel.getDefaultOptions(extraFeatures);
+
+  // The sourceMap option should probably be removed from the default
+  // options returned by meteorBabel.getDefaultOptions.
+  delete options.sourceMap;
+
+  return options;
+}
+
+Babel = {
+  getDefaultOptions: getDefaultOptions,
+
+  compile: function (source, options) {
+    options = options || getDefaultOptions();
+    return meteorBabel.compile(source, options);
+  },
+
+  // Provided for backwards compatibility; prefer Babel.compile.
+  transformMeteor: function (source, extraOptions) {
+    var options = getDefaultOptions();
+
+    if (extraOptions) {
+      if (extraOptions.extraWhitelist) {
+        options.whitelist.push.apply(
+          options.whitelist,
+          extraOptions.extraWhitelist
+        );
+      }
+
+      for (var key in extraOptions) {
+        if (key !== "extraWhitelist" &&
+            hasOwnProperty.call(extraOptions, key)) {
+          options[key] = extraOptions[key];
+        }
+      }
+    }
+
+    return meteorBabel.compile(code, options);
+  },
+
+  setCacheDir: function (cacheDir) {
+    meteorBabel.setCacheDir(cacheDir);
+  }
+};
diff --git a/packages/babel-compiler/package.js b/packages/babel-compiler/package.js
new file mode 100644
index 0000000000..0c383c0ea6
--- /dev/null
+++ b/packages/babel-compiler/package.js
@@ -0,0 +1,17 @@
+Package.describe({
+  name: "babel-compiler",
+  summary: "Parser/transpiler for ECMAScript 6+ syntax",
+  // Tracks the npm version below.  Use wrap numbers to increment
+  // without incrementing the npm version.
+  version: '5.7.1'
+});
+
+Npm.depends({
+  'meteor-babel': '0.4.3'
+});
+
+Package.onUse(function (api) {
+  api.addFiles('babel.js', 'server');
+  api.use('check');
+  api.export('Babel', 'server');
+});