diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4e29043..b6862de 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,7 @@
 
 ## [Unreleased]
 
+- Allow the user to save or upload weight settings (#1150)
 - Allow tweaking weights on a per-node basis (#1143)
 - Add the `pagerank` command (#1114)
 - Add the `clear` command (#1111)
diff --git a/src/explorer/App.js b/src/explorer/App.js
index 8d9df53..6d30658 100644
--- a/src/explorer/App.js
+++ b/src/explorer/App.js
@@ -12,6 +12,7 @@ import {type NodeAddressT} from "../core/graph";
 
 import {PagerankTable} from "./pagerankTable/Table";
 import {WeightConfig} from "./weights/WeightConfig";
+import {WeightsFileManager} from "./weights/WeightsFileManager";
 import {type Weights, defaultWeights} from "../analysis/weights";
 import {Prefix as GithubPrefix} from "../plugins/github/nodes";
 import {
@@ -108,6 +109,14 @@ export function createApp(
           }}
         />
       );
+      const weightFileManager = (
+        <WeightsFileManager
+          weights={this.state.weights}
+          onWeightsChange={(weights: Weights) => {
+            this.setState({weights});
+          }}
+        />
+      );
       let pagerankTable;
       if (appState.type === "PAGERANK_EVALUATED") {
         const adapters = appState.graphWithAdapters.adapters;
@@ -117,6 +126,7 @@ export function createApp(
             defaultNodeType={userNodeType}
             adapters={adapters}
             weightConfig={weightConfig}
+            weightFileManager={weightFileManager}
             manualWeights={this.state.weights.nodeManualWeights}
             onManualWeightsChange={(addr: NodeAddressT, weight: number) =>
               this.setState(({weights}) => {
diff --git a/src/explorer/pagerankTable/Table.js b/src/explorer/pagerankTable/Table.js
index ea10d6b..20a5cf5 100644
--- a/src/explorer/pagerankTable/Table.js
+++ b/src/explorer/pagerankTable/Table.js
@@ -4,6 +4,7 @@ import React from "react";
 import sortBy from "lodash.sortby";
 
 import {WeightConfig} from "../weights/WeightConfig";
+import {WeightsFileManager} from "../weights/WeightsFileManager";
 import {NodeAddress, type NodeAddressT} from "../../core/graph";
 import type {PagerankNodeDecomposition} from "../../analysis/pagerankNodeDecomposition";
 import {DynamicExplorerAdapterSet} from "../adapters/explorerAdapterSet";
@@ -19,6 +20,7 @@ type PagerankTableProps = {|
   +manualWeights: Map<NodeAddressT, number>,
   +onManualWeightsChange: (NodeAddressT, number) => void,
   +weightConfig: React$Element<typeof WeightConfig>,
+  +weightFileManager: React$Element<typeof WeightsFileManager>,
 |};
 type PagerankTableState = {|
   selectedNodeTypePrefix: NodeAddressT,
@@ -45,6 +47,7 @@ export class PagerankTable extends React.PureComponent<
       <div style={{display: "flex"}}>
         {this.renderFilterSelect()}
         <span style={{flexGrow: 1}} />
+        {this.props.weightFileManager}
         <button
           onClick={() => {
             this.setState(({showWeightConfig}) => ({
diff --git a/src/explorer/pagerankTable/Table.test.js b/src/explorer/pagerankTable/Table.test.js
index b2870e5..3a65692 100644
--- a/src/explorer/pagerankTable/Table.test.js
+++ b/src/explorer/pagerankTable/Table.test.js
@@ -22,12 +22,14 @@ describe("explorer/pagerankTable/Table", () => {
         manualWeights,
         onManualWeightsChange,
         weightConfig,
+        weightFileManager,
         maxEntriesPerList,
       } = await example();
       const element = shallow(
         <PagerankTable
           defaultNodeType={defaultNodeType}
           weightConfig={weightConfig}
+          weightFileManager={weightFileManager}
           pnd={pnd}
           adapters={adapters}
           maxEntriesPerList={maxEntriesPerList}
diff --git a/src/explorer/pagerankTable/sharedTestUtils.js b/src/explorer/pagerankTable/sharedTestUtils.js
index f356fee..7c80fa6 100644
--- a/src/explorer/pagerankTable/sharedTestUtils.js
+++ b/src/explorer/pagerankTable/sharedTestUtils.js
@@ -20,6 +20,7 @@ export async function example() {
   const manualWeights: Map<NodeAddressT, number> = new Map();
   const onManualWeightsChange: (NodeAddressT, number) => void = jest.fn();
   const weightConfig: any = <div data-test-weight-config={true} />;
+  const weightFileManager: any = <div data-test-weight-file-manager={true} />;
 
   const sharedProps: SharedProps = {
     adapters,
@@ -37,5 +38,6 @@ export async function example() {
     manualWeights,
     onManualWeightsChange,
     weightConfig,
+    weightFileManager,
   };
 }
diff --git a/src/explorer/weights/WeightsFileManager.js b/src/explorer/weights/WeightsFileManager.js
new file mode 100644
index 0000000..0acbd55
--- /dev/null
+++ b/src/explorer/weights/WeightsFileManager.js
@@ -0,0 +1,33 @@
+// @flow
+
+import stringify from "json-stable-stringify";
+import React from "react";
+import {FileUploader} from "../../util/FileUploader";
+import {MdFileDownload, MdFileUpload} from "react-icons/md";
+import {type Weights, toJSON, fromJSON} from "../../analysis/weights";
+
+export type Props = {|
+  +weights: Weights,
+  +onWeightsChange: (Weights) => void,
+|};
+export class WeightsFileManager extends React.Component<Props> {
+  render() {
+    const weightsJSON = stringify(toJSON(this.props.weights));
+    const onUpload = (json) => this.props.onWeightsChange(fromJSON(json));
+    return (
+      <div>
+        <a
+          download="weights.json"
+          title="Download your weights.json"
+          href={`data:text/json,${weightsJSON}`}
+          style={{color: "black"}}
+        >
+          <MdFileDownload style={{margin: "2px"}} />
+        </a>
+        <FileUploader title="Upload weights.json" onUpload={onUpload}>
+          <MdFileUpload style={{margin: "2px"}} />
+        </FileUploader>
+      </div>
+    );
+  }
+}
diff --git a/src/util/FileUploader.js b/src/util/FileUploader.js
index b144fa9..c0ca96b 100644
--- a/src/util/FileUploader.js
+++ b/src/util/FileUploader.js
@@ -1,11 +1,11 @@
 // @flow
 
-import React from "react";
-import {MdFileUpload} from "react-icons/md";
+import React, {type Node} from "react";
 
 export type Props = {|
-  +onUpload: (mixed) => void,
+  +onUpload: (any) => void,
   +title: string,
+  +children: Node,
 |};
 
 /**
@@ -36,7 +36,7 @@ export class FileUploader extends React.Component<Props> {
       // over the UI, but ensures that it is still accessible via the keyboard.
       // https://snook.ca/archives/html_and_css/hiding-content-for-accessibility
       <label title={this.props.title}>
-        <MdFileUpload />
+        {this.props.children}
         <input
           type="file"
           accept=".json"
diff --git a/src/util/FileUploaderInspectionTest.js b/src/util/FileUploaderInspectionTest.js
index fa15f22..0ec0a16 100644
--- a/src/util/FileUploaderInspectionTest.js
+++ b/src/util/FileUploaderInspectionTest.js
@@ -2,6 +2,7 @@
 
 import React from "react";
 import Markdown from "react-markdown";
+import {MdFileUpload} from "react-icons/md";
 
 import dedent from "./dedent";
 import stringify from "json-stable-stringify";
@@ -36,7 +37,9 @@ export default class FileUploaderInspectionTest extends React.Component<
       `}
         />
         <h2>The File Uploader</h2>
-        <FileUploader onUpload={onUpload} title="FileUploader" />
+        <FileUploader onUpload={onUpload} title="FileUploader">
+          <MdFileUpload />
+        </FileUploader>
         <h2>The Uploaded File</h2>
         {this.state.json ? (
           <pre style={{backgroundColor: "#efefef"}}>{displayContents}</pre>