diff --git a/extensions/dicom-html/src/OHIFDicomHtmlSopClassHandler.js b/extensions/dicom-html/src/OHIFDicomHtmlSopClassHandler.js
index f94ea055c..c1bc4fc3a 100644
--- a/extensions/dicom-html/src/OHIFDicomHtmlSopClassHandler.js
+++ b/extensions/dicom-html/src/OHIFDicomHtmlSopClassHandler.js
@@ -22,11 +22,13 @@ const OHIFDicomHtmlSopClassHandler = {
   getDisplaySetFromSeries(series, study, dicomWebClient, authorizationHeaders) {
     const instance = series.getFirstInstance();
 
+    const metadata = instance.getData().metadata;
     const {
+      SeriesDescription,
+      SeriesNumber,
       SeriesDate,
       SeriesTime,
-      SeriesNumber,
-    } = instance._instance.metadata;
+    } = metadata;
 
     return {
       plugin: 'html',
@@ -37,6 +39,8 @@ const OHIFDicomHtmlSopClassHandler = {
       SOPInstanceUID: instance.getSOPInstanceUID(),
       SeriesInstanceUID: series.getSeriesInstanceUID(),
       StudyInstanceUID: study.getStudyInstanceUID(),
+      SeriesDescription,
+      metadata,
       SeriesDate,
       SeriesTime,
       SeriesNumber,
diff --git a/extensions/dicom-microscopy/src/DicomMicroscopySopClassHandler.js b/extensions/dicom-microscopy/src/DicomMicroscopySopClassHandler.js
index 909e39bf2..a876b6122 100644
--- a/extensions/dicom-microscopy/src/DicomMicroscopySopClassHandler.js
+++ b/extensions/dicom-microscopy/src/DicomMicroscopySopClassHandler.js
@@ -12,11 +12,13 @@ const DicomMicroscopySopClassHandler = {
   getDisplaySetFromSeries(series, study, dicomWebClient) {
     const instance = series.getFirstInstance();
 
+    const metadata = instance.getData().metadata;
     const {
+      SeriesDescription,
+      SeriesNumber,
       ContentDate,
       ContentTime,
-      SeriesNumber,
-    } = instance._instance.metadata;
+    } = metadata;
 
     // Note: We are passing the dicomweb client into each viewport!
 
@@ -28,9 +30,11 @@ const DicomMicroscopySopClassHandler = {
       SOPInstanceUID: instance.getSOPInstanceUID(),
       SeriesInstanceUID: series.getSeriesInstanceUID(),
       StudyInstanceUID: study.getStudyInstanceUID(),
+      SeriesDescription,
       SeriesDate: ContentDate, // Map ContentDate/Time to SeriesTime for series list sorting.
       SeriesTime: ContentTime,
       SeriesNumber,
+      metadata,
     };
   },
 };
diff --git a/extensions/dicom-pdf/src/OHIFDicomPDFSopClassHandler.js b/extensions/dicom-pdf/src/OHIFDicomPDFSopClassHandler.js
index 9550ed80f..452b843bd 100644
--- a/extensions/dicom-pdf/src/OHIFDicomPDFSopClassHandler.js
+++ b/extensions/dicom-pdf/src/OHIFDicomPDFSopClassHandler.js
@@ -12,11 +12,13 @@ const OHIFDicomPDFSopClassHandler = {
   getDisplaySetFromSeries(series, study, dicomWebClient, authorizationHeaders) {
     const instance = series.getFirstInstance();
 
+    const metadata = instance.getData().metadata;
     const {
       ContentDate,
       ContentTime,
+      SeriesDescription,
       SeriesNumber,
-    } = instance._instance.metadata;
+    } = metadata;
 
     return {
       plugin: 'pdf',
@@ -27,9 +29,11 @@ const OHIFDicomPDFSopClassHandler = {
       SOPInstanceUID: instance.getSOPInstanceUID(),
       SeriesInstanceUID: series.getSeriesInstanceUID(),
       StudyInstanceUID: study.getStudyInstanceUID(),
+      SeriesDescription,
       SeriesDate: ContentDate, // Map ContentDate/Time to SeriesTime for series list sorting.
       SeriesTime: ContentTime,
       SeriesNumber,
+      metadata,
       authorizationHeaders: authorizationHeaders,
     };
   },
diff --git a/extensions/dicom-rt/src/OHIFDicomRTStructSopClassHandler.js b/extensions/dicom-rt/src/OHIFDicomRTStructSopClassHandler.js
index 0aae17761..4f624cfa6 100644
--- a/extensions/dicom-rt/src/OHIFDicomRTStructSopClassHandler.js
+++ b/extensions/dicom-rt/src/OHIFDicomRTStructSopClassHandler.js
@@ -56,6 +56,7 @@ const OHIFDicomRTStructSopClassHandler = {
       SeriesTime,
       SeriesNumber,
       SeriesDescription,
+      metadata,
     };
 
     if (!metadata.ReferencedSeriesSequence) {
diff --git a/extensions/dicom-segmentation/src/getOHIFDicomSegSopClassHandler.js b/extensions/dicom-segmentation/src/getOHIFDicomSegSopClassHandler.js
index 83f84ed42..2a3c5ad30 100644
--- a/extensions/dicom-segmentation/src/getOHIFDicomSegSopClassHandler.js
+++ b/extensions/dicom-segmentation/src/getOHIFDicomSegSopClassHandler.js
@@ -28,12 +28,12 @@ export default function getSopClassHandlerModule({ servicesManager }) {
       const {
         SeriesDate,
         SeriesTime,
-        SeriesNumber,
         SeriesDescription,
         FrameOfReferenceUID,
         SOPInstanceUID,
         SeriesInstanceUID,
         StudyInstanceUID,
+        SeriesNumber,
       } = metadata;
 
       const segDisplaySet = {
@@ -55,6 +55,7 @@ export default function getSopClassHandlerModule({ servicesManager }) {
         SeriesTime,
         SeriesNumber,
         SeriesDescription,
+        metadata,
       };
 
       segDisplaySet.getSourceDisplaySet = function(studies) {
diff --git a/extensions/dicom-tag-browser/.webpack/webpack.dev.js b/extensions/dicom-tag-browser/.webpack/webpack.dev.js
new file mode 100644
index 000000000..1ae308448
--- /dev/null
+++ b/extensions/dicom-tag-browser/.webpack/webpack.dev.js
@@ -0,0 +1,8 @@
+const path = require('path');
+const webpackCommon = require('./../../../.webpack/webpack.commonjs.js');
+const SRC_DIR = path.join(__dirname, '../src');
+const DIST_DIR = path.join(__dirname, '../dist');
+
+module.exports = (env, argv) => {
+  return webpackCommon(env, argv, { SRC_DIR, DIST_DIR });
+};
diff --git a/extensions/dicom-tag-browser/.webpack/webpack.prod.js b/extensions/dicom-tag-browser/.webpack/webpack.prod.js
new file mode 100644
index 000000000..31dff1ae7
--- /dev/null
+++ b/extensions/dicom-tag-browser/.webpack/webpack.prod.js
@@ -0,0 +1,38 @@
+const merge = require('webpack-merge');
+const path = require('path');
+const webpackCommon = require('./../../../.webpack/webpack.commonjs.js');
+const pkg = require('./../package.json');
+
+const ROOT_DIR = path.join(__dirname, './..');
+const SRC_DIR = path.join(__dirname, '../src');
+const DIST_DIR = path.join(__dirname, '../dist');
+
+module.exports = (env, argv) => {
+  const commonConfig = webpackCommon(env, argv, { SRC_DIR, DIST_DIR });
+
+  return merge(commonConfig, {
+    devtool: 'source-map',
+    stats: {
+      colors: true,
+      hash: true,
+      timings: true,
+      assets: true,
+      chunks: false,
+      chunkModules: false,
+      modules: false,
+      children: false,
+      warnings: true,
+    },
+    optimization: {
+      minimize: true,
+      sideEffects: true,
+    },
+    output: {
+      path: ROOT_DIR,
+      library: 'OHIFExtDicomP10Downloader',
+      libraryTarget: 'umd',
+      libraryExport: 'default',
+      filename: pkg.main,
+    },
+  });
+};
diff --git a/extensions/dicom-tag-browser/LICENSE b/extensions/dicom-tag-browser/LICENSE
new file mode 100644
index 000000000..19e20dd35
--- /dev/null
+++ b/extensions/dicom-tag-browser/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2018 Open Health Imaging Foundation
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/extensions/dicom-tag-browser/README.md b/extensions/dicom-tag-browser/README.md
new file mode 100644
index 000000000..f666b3ef9
--- /dev/null
+++ b/extensions/dicom-tag-browser/README.md
@@ -0,0 +1 @@
+# @ohif/extension-dicom-tag-browser
diff --git a/extensions/dicom-tag-browser/package.json b/extensions/dicom-tag-browser/package.json
new file mode 100644
index 000000000..279662729
--- /dev/null
+++ b/extensions/dicom-tag-browser/package.json
@@ -0,0 +1,40 @@
+{
+  "name": "@ohif/extension-dicom-tag-browser",
+  "version": "0.0.1",
+  "description": "OHIF extension for checking DICOM headers.",
+  "author": "OHIF",
+  "license": "MIT",
+  "repository": "OHIF/Viewers",
+  "main": "dist/index.umd.js",
+  "module": "src/index.js",
+  "publishConfig": {
+    "access": "public"
+  },
+  "engines": {
+    "node": ">=10",
+    "npm": ">=6",
+    "yarn": ">=1.16.0"
+  },
+  "files": [
+    "dist",
+    "README.md"
+  ],
+  "scripts": {
+    "dev": "cross-env NODE_ENV=development webpack --config .webpack/webpack.dev.js --watch --debug --output-pathinfo",
+    "build": "cross-env NODE_ENV=production webpack --config .webpack/webpack.prod.js",
+    "build:package": "yarn run build",
+    "prepublishOnly": "yarn run build",
+    "start": "yarn run dev"
+  },
+  "peerDependencies": {
+    "@ohif/core": "^2.6.0",
+    "react": "^16.8.6",
+    "dcmjs": "0.16.0"
+  },
+  "dependencies": {
+    "@babel/runtime": "^7.5.5",
+    "dicomweb-client": "^0.6.0",
+    "react-select": "^3.0.8",
+    "moment": "2.24.0"
+  }
+}
diff --git a/extensions/dicom-tag-browser/src/components/DicomBrowserSelect.js b/extensions/dicom-tag-browser/src/components/DicomBrowserSelect.js
new file mode 100644
index 000000000..f8d62f878
--- /dev/null
+++ b/extensions/dicom-tag-browser/src/components/DicomBrowserSelect.js
@@ -0,0 +1,58 @@
+import React from 'react';
+import Select from 'react-select';
+
+const DicomBrowserSelect = ({ value, formatOptionLabel, options }) => (
+  <Select
+    value={value}
+    formatOptionLabel={formatOptionLabel}
+    styles={dicomBrowserSelectStyles}
+    options={options}
+  />
+);
+
+const computedstyle = getComputedStyle(document.body);
+const uiGrayDarker = computedstyle.getPropertyValue('--ui-gray-darker');
+const activeColor = computedstyle.getPropertyValue('--active-color');
+const defaultColor = computedstyle.getPropertyValue('--default-color');
+const uiGrayDark = computedstyle.getPropertyValue('--ui-gray-dark');
+
+const dicomBrowserSelectStyles = {
+  singleValue: (base, state) => ({
+    ...base,
+    width: '100%',
+  }),
+  control: (base, state) => ({
+    ...base,
+    cursor: 'pointer',
+    background: uiGrayDarker,
+    borderRadius: state.isFocused ? '5px 5px 5px 5px' : 5,
+    borderColor: state.isFocused ? activeColor : defaultColor,
+    minHeight: '50px',
+    '&:hover': {
+      borderColor: activeColor,
+    },
+  }),
+  menu: base => ({
+    ...base,
+    borderRadius: 5,
+    background: uiGrayDarker,
+  }),
+  option: (base, state) => ({
+    ...base,
+    cursor: 'pointer',
+    '&:first-of-type': {
+      borderTopLeftRadius: 5,
+      borderTopRightRadius: 5,
+    },
+    '&:last-of-type': {
+      borderBottomLeftRadius: 5,
+      borderBottomRightRadius: 5,
+    },
+    background: state.isSelected ? uiGrayDark : uiGrayDarker,
+    '&:hover': {
+      background: uiGrayDark,
+    },
+  }),
+};
+
+export default DicomBrowserSelect;
diff --git a/extensions/dicom-tag-browser/src/components/DicomBrowserSelectItem.css b/extensions/dicom-tag-browser/src/components/DicomBrowserSelectItem.css
new file mode 100644
index 000000000..bc65eee35
--- /dev/null
+++ b/extensions/dicom-tag-browser/src/components/DicomBrowserSelectItem.css
@@ -0,0 +1,25 @@
+.dcmseg-segmentation-item {
+  display: flex;
+  justify-content: start;
+  margin: 0;
+}
+
+.dcmseg-segmentation-item .segmentation-meta {
+  display: flex;
+  flex-direction: column;
+  flex-grow: 1;
+  overflow: hidden;
+}
+
+.dcmseg-segmentation-item .segmentation-meta-title {
+  text-overflow: ellipsis;
+  overflow: hidden;
+  white-space: nowrap;
+  color: white;
+  max-width: calc(100% - 30px);
+}
+
+.dcmseg-segmentation-item .segmentation-meta-description {
+  font-size: 12px;
+  color: var(--text-secondary-color);
+}
diff --git a/extensions/dicom-tag-browser/src/components/DicomBrowserSelectItem.js b/extensions/dicom-tag-browser/src/components/DicomBrowserSelectItem.js
new file mode 100644
index 000000000..428ed6413
--- /dev/null
+++ b/extensions/dicom-tag-browser/src/components/DicomBrowserSelectItem.js
@@ -0,0 +1,27 @@
+import React from 'react';
+import PropTypes from 'prop-types';
+
+import './DicomBrowserSelectItem.css';
+
+const DicomBrowserSelectItem = ({ onClick, title, description }) => {
+  return (
+    <li className="dcmseg-segmentation-item" onClick={onClick}>
+      <div className="segmentation-meta">
+        <div className="segmentation-meta-title">{title}</div>
+        <div className="segmentation-meta-description">{description}</div>
+      </div>
+    </li>
+  );
+};
+
+DicomBrowserSelectItem.propTypes = {
+  onClick: PropTypes.func.isRequired,
+  title: PropTypes.string.isRequired,
+  description: PropTypes.string.isRequired,
+};
+
+DicomBrowserSelectItem.defaultProps = {
+  description: '',
+};
+
+export default DicomBrowserSelectItem;
diff --git a/extensions/dicom-tag-browser/src/components/DicomTagBrowser.css b/extensions/dicom-tag-browser/src/components/DicomTagBrowser.css
new file mode 100644
index 000000000..3b336a1dc
--- /dev/null
+++ b/extensions/dicom-tag-browser/src/components/DicomTagBrowser.css
@@ -0,0 +1,27 @@
+.dicom-tag-browser-table {
+  margin-right: auto;
+  margin-left: auto;
+}
+
+.dicom-tag-browser-table td {
+  padding-left: 10px;
+  padding-right: 10px;
+  color: var(--table-text-primary-color);
+  border-top: 1px solid #ddd;
+  white-space: nowrap;
+}
+
+.dicom-tag-browser-table td.dicom-tag-browser-table-center {
+  text-align: center;
+}
+
+.dicom-tag-browser-table th {
+  padding-left: 10px;
+  padding-right: 10px;
+  text-align: center;
+  color: var(--active-color);
+}
+
+.dicom-tag-browser-table th.dicom-tag-browser-table-left {
+  text-align: left;
+}
diff --git a/extensions/dicom-tag-browser/src/components/DicomTagBrowser.js b/extensions/dicom-tag-browser/src/components/DicomTagBrowser.js
new file mode 100644
index 000000000..dae111451
--- /dev/null
+++ b/extensions/dicom-tag-browser/src/components/DicomTagBrowser.js
@@ -0,0 +1,228 @@
+import React, { useState } from 'react';
+import { classes } from '@ohif/core';
+import dcmjs from 'dcmjs';
+import DicomBrowserSelect from './DicomBrowserSelect';
+import moment from 'moment';
+import './DicomTagBrowser.css';
+import DicomBrowserSelectItem from './DicomBrowserSelectItem';
+
+const { ImageSet } = classes;
+const { DicomMetaDictionary } = dcmjs.data;
+const { nameMap } = DicomMetaDictionary;
+
+const DicomTagBrowser = ({ displaySets, displaySetInstanceUID }) => {
+  const [
+    activeDisplaySetInstanceUID,
+    setActiveDisplaySetInstanceUID,
+  ] = useState(displaySetInstanceUID);
+  const [activeInstance, setActiveInstance] = useState(0);
+
+  const activeDisplaySet = displaySets.find(
+    ds => ds.displaySetInstanceUID === activeDisplaySetInstanceUID
+  );
+
+  const displaySetList = displaySets.map(displaySet => {
+    const {
+      displaySetInstanceUID,
+      SeriesDate,
+      SeriesTime,
+      SeriesNumber,
+      SeriesDescription,
+      Modality,
+    } = displaySet;
+
+    /* Map to display representation */
+    const dateStr = `${SeriesDate}:${SeriesTime}`.split('.')[0];
+    const date = moment(dateStr, 'YYYYMMDD:HHmmss');
+    const displayDate = date.format('ddd, MMM Do YYYY');
+
+    return {
+      value: displaySetInstanceUID,
+      title: `${SeriesNumber} (${Modality}): ${SeriesDescription}`,
+      description: displayDate,
+      onClick: () => {
+        setActiveDisplaySetInstanceUID(displaySetInstanceUID);
+        setActiveInstance(0);
+      },
+    };
+  });
+
+  let metadata;
+  const isImageStack = activeDisplaySet instanceof ImageSet;
+
+  let selectedInstanceValue;
+  let instanceList;
+
+  if (isImageStack) {
+    const { images } = activeDisplaySet;
+    const image = images[activeInstance];
+
+    instanceList = images.map((image, index) => {
+      const metadata = image.getData().metadata;
+
+      const { InstanceNumber } = metadata;
+
+      return {
+        value: index,
+        title: `Instance Number: ${InstanceNumber}`,
+        description: '',
+        onClick: () => {
+          setActiveInstance(index);
+        },
+      };
+    });
+
+    selectedInstanceValue = instanceList[activeInstance];
+
+    metadata = image.getData().metadata;
+  } else {
+    metadata = activeDisplaySet.metadata;
+  }
+
+  const selectedDisplaySetValue = displaySetList.find(
+    ds => ds.value === activeDisplaySetInstanceUID
+  );
+
+  return (
+    <div>
+      <DicomBrowserSelect
+        value={selectedDisplaySetValue}
+        formatOptionLabel={DicomBrowserSelectItem}
+        options={displaySetList}
+      />
+      {isImageStack ? (
+        <DicomBrowserSelect
+          value={selectedInstanceValue}
+          formatOptionLabel={DicomBrowserSelectItem}
+          options={instanceList}
+        />
+      ) : null}
+      <DicomTagTable instanceMetadata={metadata}></DicomTagTable>
+    </div>
+  );
+};
+
+function DicomTagTable({ instanceMetadata }) {
+  const rows = getRows(instanceMetadata);
+
+  return (
+    <div>
+      <table className="dicom-tag-browser-table">
+        <tr>
+          <th className="dicom-tag-browser-table-left">Tag</th>
+          <th className="dicom-tag-browser-table-left">Value Representation</th>
+          <th className="dicom-tag-browser-table-left">Keyword</th>
+          <th className="dicom-tag-browser-table-left">Value</th>
+        </tr>
+        {rows.map(row => (
+          <tr>
+            <td>{row[0]}</td>
+            <td>{row[1]}</td>
+            <td>{row[2]}</td>
+            <td>{row[3]}</td>
+          </tr>
+        ))}
+      </table>
+    </div>
+  );
+}
+
+function getRows(metadata, depth = 0) {
+  // Tag, Type, Value, Keyword
+
+  const keywords = Object.keys(metadata);
+
+  let tagIndent = '';
+
+  for (let i = 0; i < depth; i++) {
+    tagIndent += '>';
+  }
+
+  const rows = [];
+
+  for (let i = 0; i < keywords.length; i++) {
+    let keyword = keywords[i];
+
+    if (keyword === '_vrMap') {
+      continue;
+    }
+
+    const tagInfo = nameMap[keyword];
+
+    let value = metadata[keyword];
+
+    if (tagInfo && tagInfo.vr === 'SQ') {
+      const sequenceAsArray = toArray(value);
+
+      // Push line defining the sequence
+      rows.push([`${tagIndent}${tagInfo.tag}`, tagInfo.vr, keyword, '']);
+
+      if (value === null) {
+        // Type 2 Sequence
+        continue;
+      }
+
+      sequenceAsArray.forEach(item => {
+        const sequenceRows = getRows(item, depth + 1);
+
+        sequenceRows.forEach(row => {
+          rows.push(row);
+        });
+      });
+
+      continue;
+    }
+
+    if (Array.isArray(value)) {
+      value = value.join('\\');
+    }
+
+    if (typeof value === 'number') {
+      value = value.toString();
+    }
+
+    if (typeof value !== 'string') {
+      if (value === null) {
+        value = ' ';
+      } else {
+        if (typeof value === 'object') {
+          if (value.InlineBinary) {
+            value = 'Inline Binary';
+          } else if (value.BulkDataURI) {
+            value = `Bulk Data URI`; //: ${value.BulkDataURI}`;
+          } else if (value.Alphabetic) {
+            value = value.Alphabetic;
+          } else {
+            console.error('Unrecognised Value for element:');
+            console.error(value);
+            value = ' ';
+          }
+        } else {
+          console.error('Unrecognised Value for element:');
+          console.error(value);
+          value = ' ';
+        }
+      }
+    }
+
+    // Remove retired tags
+    keyword = keyword.replace('RETIRED_', '');
+
+    if (tagInfo) {
+      rows.push([`${tagIndent}${tagInfo.tag}`, tagInfo.vr, keyword, value]);
+    } else {
+      // Private tag
+      const tag = `(${keyword.substring(0, 4)},${keyword.substring(4, 8)})`;
+
+      rows.push([`${tagIndent}${tag}`, '', 'Private Tag', value]);
+    }
+  }
+
+  return rows;
+}
+
+function toArray(objectOrArray) {
+  return Array.isArray(objectOrArray) ? objectOrArray : [objectOrArray];
+}
+
+export default DicomTagBrowser;
diff --git a/extensions/dicom-tag-browser/src/getCommandsModule.js b/extensions/dicom-tag-browser/src/getCommandsModule.js
new file mode 100644
index 000000000..274e5e127
--- /dev/null
+++ b/extensions/dicom-tag-browser/src/getCommandsModule.js
@@ -0,0 +1,52 @@
+import { utils } from '@ohif/core';
+import React from 'react';
+import DicomTagBrowser from './components/DicomTagBrowser';
+
+const { studyMetadataManager } = utils;
+
+export default function getCommandsModule(servicesManager) {
+  const actions = {
+    openDICOMTagViewer({ viewports }) {
+      const { activeViewportIndex, viewportSpecificData } = viewports;
+      const activeViewportSpecificData =
+        viewportSpecificData[activeViewportIndex];
+
+      const {
+        StudyInstanceUID,
+        displaySetInstanceUID,
+      } = activeViewportSpecificData;
+
+      const studyMetadata = studyMetadataManager.get(StudyInstanceUID);
+      const displaySets = studyMetadata.getDisplaySets();
+
+      const { UIModalService } = servicesManager.services;
+
+      const WrappedDicomTagBrowser = function() {
+        return (
+          <DicomTagBrowser
+            displaySets={displaySets}
+            displaySetInstanceUID={displaySetInstanceUID}
+          />
+        );
+      };
+
+      UIModalService.show({
+        content: WrappedDicomTagBrowser,
+        title: `DICOM Tag Browser`,
+        fullscreen: true,
+      });
+    },
+  };
+
+  const definitions = {
+    openDICOMTagViewer: {
+      commandFn: actions.openDICOMTagViewer,
+      storeContexts: ['servers', 'viewports'],
+    },
+  };
+
+  return {
+    actions,
+    definitions,
+  };
+}
diff --git a/extensions/dicom-tag-browser/src/index.js b/extensions/dicom-tag-browser/src/index.js
new file mode 100644
index 000000000..e6b5702a1
--- /dev/null
+++ b/extensions/dicom-tag-browser/src/index.js
@@ -0,0 +1,26 @@
+import getCommandsModule from './getCommandsModule';
+import toolbarModule from './toolbarModule';
+
+/**
+ * Constants
+ */
+
+/**
+ * Extension
+ */
+export default {
+  /**
+   * Only required property. Should be a unique value across all extensions.
+   */
+  id: 'dicom-tag-browser',
+
+  /**
+   * MODULE GETTERS
+   */
+  getCommandsModule({ servicesManager }) {
+    return getCommandsModule(servicesManager);
+  },
+  getToolbarModule() {
+    return toolbarModule;
+  },
+};
diff --git a/extensions/dicom-tag-browser/src/toolbarModule.js b/extensions/dicom-tag-browser/src/toolbarModule.js
new file mode 100644
index 000000000..0eb1c77a4
--- /dev/null
+++ b/extensions/dicom-tag-browser/src/toolbarModule.js
@@ -0,0 +1,20 @@
+const TOOLBAR_BUTTON_TYPES = {
+  COMMAND: 'command',
+};
+
+const definitions = [
+  {
+    id: 'TagBrowser',
+    label: 'Tag Browser',
+    icon: 'list',
+    //
+    type: TOOLBAR_BUTTON_TYPES.COMMAND,
+    commandName: 'openDICOMTagViewer',
+    context: 'VIEWER',
+  },
+];
+
+export default {
+  definitions,
+  defaultContext: 'VIEWER',
+};
diff --git a/platform/core/src/services/UIModalService/index.js b/platform/core/src/services/UIModalService/index.js
index 57e308713..e2cd178ca 100644
--- a/platform/core/src/services/UIModalService/index.js
+++ b/platform/core/src/services/UIModalService/index.js
@@ -38,6 +38,7 @@ function _show({
   onClose = null,
   closeButton = true,
   title = null,
+  fullscreen = false,
   customClassName = null,
 }) {
   return serviceImplementation._show({
@@ -48,6 +49,7 @@ function _show({
     onClose,
     closeButton,
     title,
+    fullscreen,
     customClassName,
   });
 }
diff --git a/platform/ui/src/components/ohifModal/OHIFModal.js b/platform/ui/src/components/ohifModal/OHIFModal.js
index 3f9302ced..44aa67fd6 100644
--- a/platform/ui/src/components/ohifModal/OHIFModal.js
+++ b/platform/ui/src/components/ohifModal/OHIFModal.js
@@ -22,6 +22,7 @@ const OHIFModal = ({
   closeButton,
   shouldCloseOnEsc,
   isOpen,
+  fullscreen,
   title,
   onClose,
   children,
@@ -41,9 +42,13 @@ const OHIFModal = ({
     );
   };
 
+  const classes = fullscreen
+    ? classNames('OHIFModal', className, 'OHIFModal-fullscreen')
+    : classNames('OHIFModal', className);
+
   return (
     <Modal
-      className={classNames('OHIFModal', className)}
+      className={classes}
       data-cy="modal"
       shouldCloseOnEsc={shouldCloseOnEsc}
       isOpen={isOpen}
diff --git a/platform/ui/src/components/ohifModal/OHIFModal.styl b/platform/ui/src/components/ohifModal/OHIFModal.styl
index 0118e7809..a6ab1a1d2 100644
--- a/platform/ui/src/components/ohifModal/OHIFModal.styl
+++ b/platform/ui/src/components/ohifModal/OHIFModal.styl
@@ -18,9 +18,17 @@
   @media (min-width: 768px)
     width: 600px
 
+    &.OHIFModal-fullscreen
+      width: 95%
+
   @media (min-width: 992px)
     width: 900px
 
+    &.OHIFModal-fullscreen
+      width: 95%
+
+
+
   &__content
     padding: 20px
     max-height: 90vh;
diff --git a/platform/ui/src/contextProviders/ModalProvider.js b/platform/ui/src/contextProviders/ModalProvider.js
index c8b3d90fb..5cb60e52b 100644
--- a/platform/ui/src/contextProviders/ModalProvider.js
+++ b/platform/ui/src/contextProviders/ModalProvider.js
@@ -36,6 +36,7 @@ const ModalProvider = ({ children, modal: Modal, service }) => {
     closeButton: true,
     title: null,
     customClassName: '',
+    fullscreen: false,
   };
 
   const [options, setOptions] = useState(DEFAULT_OPTIONS);
@@ -78,6 +79,7 @@ const ModalProvider = ({ children, modal: Modal, service }) => {
     title,
     customClassName,
     shouldCloseOnEsc,
+    fullscreen,
     closeButton,
   } = options;
 
@@ -89,6 +91,7 @@ const ModalProvider = ({ children, modal: Modal, service }) => {
           shouldCloseOnEsc={shouldCloseOnEsc}
           isOpen={isOpen}
           title={title}
+          fullscreen={fullscreen}
           closeButton={closeButton}
           onClose={() => {
             if (onClose) {
diff --git a/platform/viewer/src/index.js b/platform/viewer/src/index.js
index aa63f3724..cfd49ecab 100644
--- a/platform/viewer/src/index.js
+++ b/platform/viewer/src/index.js
@@ -29,6 +29,7 @@ import OHIFDicomSegmentationExtension from '@ohif/extension-dicom-segmentation';
 import OHIFDicomRtExtension from '@ohif/extension-dicom-rt';
 import OHIFDicomMicroscopyExtension from '@ohif/extension-dicom-microscopy';
 import OHIFDicomPDFExtension from '@ohif/extension-dicom-pdf';
+import OHIFDicomTagBrowserExtension from '@ohif/extension-dicom-tag-browser';
 // Add this for Debugging purposes:
 //import OHIFDebuggingExtension from '@ohif/extension-debugging';
 import { version } from '../package.json';
@@ -53,6 +54,7 @@ const appProps = {
     OHIFDicomPDFExtension,
     OHIFDicomSegmentationExtension,
     OHIFDicomRtExtension,
+    OHIFDicomTagBrowserExtension,
     //OHIFDebuggingExtension,
   ],
 };