diff --git a/examples/mapbox-vector-tiles-advanced.js b/examples/mapbox-vector-tiles-advanced.js
index 03db877aaf..32eeb82390 100644
--- a/examples/mapbox-vector-tiles-advanced.js
+++ b/examples/mapbox-vector-tiles-advanced.js
@@ -1,6 +1,6 @@
 import _ol_Map_ from '../src/ol/Map.js';
 import _ol_View_ from '../src/ol/View.js';
-import _ol_format_MVT_ from '../src/ol/format/MVT.js';
+import MVT from '../src/ol/format/MVT.js';
 import _ol_layer_VectorTile_ from '../src/ol/layer/VectorTile.js';
 import {get as getProjection} from '../src/ol/proj.js';
 import _ol_source_VectorTile_ from '../src/ol/source/VectorTile.js';
@@ -37,7 +37,7 @@ var map = new _ol_Map_({
         attributions: '© <a href="https://www.mapbox.com/map-feedback/">Mapbox</a> ' +
           '© <a href="https://www.openstreetmap.org/copyright">' +
           'OpenStreetMap contributors</a>',
-        format: new _ol_format_MVT_(),
+        format: new MVT(),
         tileGrid: new _ol_tilegrid_TileGrid_({
           extent: getProjection('EPSG:3857').getExtent(),
           resolutions: resolutions,
diff --git a/examples/mapbox-vector-tiles.js b/examples/mapbox-vector-tiles.js
index 8b2e67ae64..4ce08ba421 100644
--- a/examples/mapbox-vector-tiles.js
+++ b/examples/mapbox-vector-tiles.js
@@ -1,6 +1,6 @@
 import _ol_Map_ from '../src/ol/Map.js';
 import _ol_View_ from '../src/ol/View.js';
-import _ol_format_MVT_ from '../src/ol/format/MVT.js';
+import MVT from '../src/ol/format/MVT.js';
 import _ol_layer_VectorTile_ from '../src/ol/layer/VectorTile.js';
 import _ol_source_VectorTile_ from '../src/ol/source/VectorTile.js';
 import _ol_style_Fill_ from '../src/ol/style/Fill.js';
@@ -20,7 +20,7 @@ var map = new _ol_Map_({
         attributions: '© <a href="https://www.mapbox.com/map-feedback/">Mapbox</a> ' +
           '© <a href="https://www.openstreetmap.org/copyright">' +
           'OpenStreetMap contributors</a>',
-        format: new _ol_format_MVT_(),
+        format: new MVT(),
         url: 'https://{a-d}.tiles.mapbox.com/v4/mapbox.mapbox-streets-v6/' +
             '{z}/{x}/{y}.vector.pbf?access_token=' + key
       }),
diff --git a/examples/vector-tile-info.js b/examples/vector-tile-info.js
index b43407df8f..c1dcaee573 100644
--- a/examples/vector-tile-info.js
+++ b/examples/vector-tile-info.js
@@ -1,6 +1,6 @@
 import _ol_Map_ from '../src/ol/Map.js';
 import _ol_View_ from '../src/ol/View.js';
-import _ol_format_MVT_ from '../src/ol/format/MVT.js';
+import MVT from '../src/ol/format/MVT.js';
 import _ol_layer_VectorTile_ from '../src/ol/layer/VectorTile.js';
 import _ol_source_VectorTile_ from '../src/ol/source/VectorTile.js';
 
@@ -12,7 +12,7 @@ var map = new _ol_Map_({
   }),
   layers: [new _ol_layer_VectorTile_({
     source: new _ol_source_VectorTile_({
-      format: new _ol_format_MVT_(),
+      format: new MVT(),
       url: 'https://basemaps.arcgis.com/v1/arcgis/rest/services/World_Basemap/VectorTileServer/tile/{z}/{y}/{x}.pbf'
     })
   })]
diff --git a/src/ol/format/MVT.js b/src/ol/format/MVT.js
index 86b6717828..08ff917c84 100644
--- a/src/ol/format/MVT.js
+++ b/src/ol/format/MVT.js
@@ -30,7 +30,7 @@ import _ol_render_Feature_ from '../render/Feature.js';
  * @param {olx.format.MVTOptions=} opt_options Options.
  * @api
  */
-var _ol_format_MVT_ = function(opt_options) {
+var MVT = function(opt_options) {
 
   FeatureFormat.call(this);
 
@@ -79,14 +79,14 @@ var _ol_format_MVT_ = function(opt_options) {
 
 };
 
-inherits(_ol_format_MVT_, FeatureFormat);
+inherits(MVT, FeatureFormat);
 
 
 /**
  * Reader callbacks for parsing the PBF.
  * @type {Object.<string, function(number, Object, ol.ext.PBF)>}
  */
-_ol_format_MVT_.pbfReaders_ = {
+MVT.pbfReaders_ = {
   layers: function(tag, layers, pbf) {
     if (tag === 3) {
       var layer = {
@@ -95,7 +95,7 @@ _ol_format_MVT_.pbfReaders_ = {
         features: []
       };
       var end = pbf.readVarint() + pbf.pos;
-      pbf.readFields(_ol_format_MVT_.pbfReaders_.layer, layer, end);
+      pbf.readFields(MVT.pbfReaders_.layer, layer, end);
       layer.length = layer.features.length;
       if (layer.length) {
         layers[layer.name] = layer;
@@ -157,7 +157,7 @@ _ol_format_MVT_.pbfReaders_ = {
  * @param {number} i Index of the feature in the raw layer's `features` array.
  * @return {Object} Raw feature.
  */
-_ol_format_MVT_.readRawFeature_ = function(pbf, layer, i) {
+MVT.readRawFeature_ = function(pbf, layer, i) {
   pbf.pos = layer.features[i];
   var end = pbf.readVarint() + pbf.pos;
 
@@ -166,7 +166,7 @@ _ol_format_MVT_.readRawFeature_ = function(pbf, layer, i) {
     type: 0,
     properties: {}
   };
-  pbf.readFields(_ol_format_MVT_.pbfReaders_.feature, feature, end);
+  pbf.readFields(MVT.pbfReaders_.feature, feature, end);
   return feature;
 };
 
@@ -181,7 +181,7 @@ _ol_format_MVT_.readRawFeature_ = function(pbf, layer, i) {
  * @param {Array.<number>} flatCoordinates Array to store flat coordinates in.
  * @param {Array.<number>} ends Array to store ends in.
  */
-_ol_format_MVT_.readRawGeometry_ = function(pbf, feature, flatCoordinates, ends) {
+MVT.readRawGeometry_ = function(pbf, feature, flatCoordinates, ends) {
   pbf.pos = feature.geometry;
 
   var end = pbf.readVarint() + pbf.pos;
@@ -245,7 +245,7 @@ _ol_format_MVT_.readRawGeometry_ = function(pbf, feature, flatCoordinates, ends)
  * geometry.
  * @return {ol.geom.GeometryType} The geometry type.
  */
-_ol_format_MVT_.getGeometryType_ = function(type, numEnds) {
+MVT.getGeometryType_ = function(type, numEnds) {
   /** @type {ol.geom.GeometryType} */
   var geometryType;
   if (type === 1) {
@@ -270,7 +270,7 @@ _ol_format_MVT_.getGeometryType_ = function(type, numEnds) {
  * @param {olx.format.ReadOptions=} opt_options Read options.
  * @return {ol.Feature|ol.render.Feature} Feature.
  */
-_ol_format_MVT_.prototype.createFeature_ = function(pbf, rawFeature, opt_options) {
+MVT.prototype.createFeature_ = function(pbf, rawFeature, opt_options) {
   var type = rawFeature.type;
   if (type === 0) {
     return null;
@@ -283,9 +283,9 @@ _ol_format_MVT_.prototype.createFeature_ = function(pbf, rawFeature, opt_options
 
   var flatCoordinates = [];
   var ends = [];
-  _ol_format_MVT_.readRawGeometry_(pbf, rawFeature, flatCoordinates, ends);
+  MVT.readRawGeometry_(pbf, rawFeature, flatCoordinates, ends);
 
-  var geometryType = _ol_format_MVT_.getGeometryType_(type, ends.length);
+  var geometryType = MVT.getGeometryType_(type, ends.length);
 
   if (this.featureClass_ === _ol_render_Feature_) {
     feature = new this.featureClass_(geometryType, flatCoordinates, ends, values, id);
@@ -336,7 +336,7 @@ _ol_format_MVT_.prototype.createFeature_ = function(pbf, rawFeature, opt_options
  * @inheritDoc
  * @api
  */
-_ol_format_MVT_.prototype.getLastExtent = function() {
+MVT.prototype.getLastExtent = function() {
   return this.extent_;
 };
 
@@ -344,7 +344,7 @@ _ol_format_MVT_.prototype.getLastExtent = function() {
 /**
  * @inheritDoc
  */
-_ol_format_MVT_.prototype.getType = function() {
+MVT.prototype.getType = function() {
   return _ol_format_FormatType_.ARRAY_BUFFER;
 };
 
@@ -353,11 +353,11 @@ _ol_format_MVT_.prototype.getType = function() {
  * @inheritDoc
  * @api
  */
-_ol_format_MVT_.prototype.readFeatures = function(source, opt_options) {
+MVT.prototype.readFeatures = function(source, opt_options) {
   var layers = this.layers_;
 
   var pbf = new PBF(/** @type {ArrayBuffer} */ (source));
-  var pbfLayers = pbf.readFields(_ol_format_MVT_.pbfReaders_.layers, {});
+  var pbfLayers = pbf.readFields(MVT.pbfReaders_.layers, {});
   /** @type {Array.<ol.Feature|ol.render.Feature>} */
   var features = [];
   var pbfLayer;
@@ -369,7 +369,7 @@ _ol_format_MVT_.prototype.readFeatures = function(source, opt_options) {
 
     var rawFeature;
     for (var i = 0, ii = pbfLayer.length; i < ii; ++i) {
-      rawFeature = _ol_format_MVT_.readRawFeature_(pbf, pbfLayer, i);
+      rawFeature = MVT.readRawFeature_(pbf, pbfLayer, i);
       features.push(this.createFeature_(pbf, rawFeature));
     }
     this.extent_ = pbfLayer ? [0, 0, pbfLayer.extent, pbfLayer.extent] : null;
@@ -383,7 +383,7 @@ _ol_format_MVT_.prototype.readFeatures = function(source, opt_options) {
  * @inheritDoc
  * @api
  */
-_ol_format_MVT_.prototype.readProjection = function(source) {
+MVT.prototype.readProjection = function(source) {
   return this.defaultDataProjection;
 };
 
@@ -393,7 +393,7 @@ _ol_format_MVT_.prototype.readProjection = function(source) {
  * @param {Array.<string>} layers Layers.
  * @api
  */
-_ol_format_MVT_.prototype.setLayers = function(layers) {
+MVT.prototype.setLayers = function(layers) {
   this.layers_ = layers;
 };
 
@@ -402,33 +402,33 @@ _ol_format_MVT_.prototype.setLayers = function(layers) {
  * Not implemented.
  * @override
  */
-_ol_format_MVT_.prototype.readFeature = function() {};
+MVT.prototype.readFeature = function() {};
 
 
 /**
  * Not implemented.
  * @override
  */
-_ol_format_MVT_.prototype.readGeometry = function() {};
+MVT.prototype.readGeometry = function() {};
 
 
 /**
  * Not implemented.
  * @override
  */
-_ol_format_MVT_.prototype.writeFeature = function() {};
+MVT.prototype.writeFeature = function() {};
 
 
 /**
  * Not implemented.
  * @override
  */
-_ol_format_MVT_.prototype.writeGeometry = function() {};
+MVT.prototype.writeGeometry = function() {};
 
 
 /**
  * Not implemented.
  * @override
  */
-_ol_format_MVT_.prototype.writeFeatures = function() {};
-export default _ol_format_MVT_;
+MVT.prototype.writeFeatures = function() {};
+export default MVT;
diff --git a/test/rendering/ol/layer/vectortile.test.js b/test/rendering/ol/layer/vectortile.test.js
index 6f265d0415..6ea5607e09 100644
--- a/test/rendering/ol/layer/vectortile.test.js
+++ b/test/rendering/ol/layer/vectortile.test.js
@@ -1,7 +1,7 @@
 import _ol_Feature_ from '../../../../src/ol/Feature.js';
 import _ol_Map_ from '../../../../src/ol/Map.js';
 import _ol_View_ from '../../../../src/ol/View.js';
-import _ol_format_MVT_ from '../../../../src/ol/format/MVT.js';
+import MVT from '../../../../src/ol/format/MVT.js';
 import Point from '../../../../src/ol/geom/Point.js';
 import _ol_layer_Vector_ from '../../../../src/ol/layer/Vector.js';
 import _ol_layer_VectorTile_ from '../../../../src/ol/layer/VectorTile.js';
@@ -70,7 +70,7 @@ describe('ol.rendering.layer.VectorTile', function() {
 
     beforeEach(function() {
       source = new _ol_source_VectorTile_({
-        format: new _ol_format_MVT_(),
+        format: new MVT(),
         tileGrid: _ol_tilegrid_.createXYZ(),
         url: 'rendering/ol/data/tiles/mvt/{z}-{x}-{y}.vector.pbf',
         transition: 0
diff --git a/test/spec/ol/format/mvt.test.js b/test/spec/ol/format/mvt.test.js
index 0371232d68..7a28cb489c 100644
--- a/test/spec/ol/format/mvt.test.js
+++ b/test/spec/ol/format/mvt.test.js
@@ -1,6 +1,6 @@
 import _ol_Feature_ from '../../../../src/ol/Feature.js';
 import * as _ol_extent_ from '../../../../src/ol/extent.js';
-import _ol_format_MVT_ from '../../../../src/ol/format/MVT.js';
+import MVT from '../../../../src/ol/format/MVT.js';
 import Point from '../../../../src/ol/geom/Point.js';
 import Polygon from '../../../../src/ol/geom/Polygon.js';
 import MultiPolygon from '../../../../src/ol/geom/MultiPolygon.js';
@@ -23,19 +23,19 @@ where('ArrayBuffer.isView').describe('ol.format.MVT', function() {
   describe('#readFeatures', function() {
 
     it('uses ol.render.Feature as feature class by default', function() {
-      var format = new _ol_format_MVT_({layers: ['water']});
+      var format = new MVT({layers: ['water']});
       var features = format.readFeatures(data);
       expect(features[0]).to.be.a(_ol_render_Feature_);
     });
 
     it('parses only specified layers', function() {
-      var format = new _ol_format_MVT_({layers: ['water']});
+      var format = new MVT({layers: ['water']});
       var features = format.readFeatures(data);
       expect(features.length).to.be(10);
     });
 
     it('parses geometries correctly', function() {
-      var format = new _ol_format_MVT_({
+      var format = new MVT({
         featureClass: _ol_Feature_,
         layers: ['poi_label']
       });
@@ -60,14 +60,14 @@ where('ArrayBuffer.isView').describe('ol.format.MVT', function() {
 
     it('parses id property', function() {
       // ol.Feature
-      var format = new _ol_format_MVT_({
+      var format = new MVT({
         featureClass: _ol_Feature_,
         layers: ['building']
       });
       var features = format.readFeatures(data);
       expect(features[0].getId()).to.be(2);
       // ol.render.Feature
-      format = new _ol_format_MVT_({
+      format = new MVT({
         layers: ['building']
       });
       features = format.readFeatures(data);
@@ -75,7 +75,7 @@ where('ArrayBuffer.isView').describe('ol.format.MVT', function() {
     });
 
     it('sets the extent of the last readFeatures call', function() {
-      var format = new _ol_format_MVT_();
+      var format = new MVT();
       format.readFeatures(data);
       var extent = format.getLastExtent();
       expect(_ol_extent_.getWidth(extent)).to.be(4096);
@@ -89,7 +89,7 @@ describe('ol.format.MVT', function() {
 
   describe('#createFeature_', function() {
     it('accepts a geometryName', function() {
-      var format = new _ol_format_MVT_({
+      var format = new MVT({
         featureClass: _ol_Feature_,
         geometryName: 'myGeom'
       });
@@ -103,13 +103,13 @@ describe('ol.format.MVT', function() {
           name: 'layer1'
         }
       };
-      var readRawGeometry_ = _ol_format_MVT_.readRawGeometry_;
-      _ol_format_MVT_.readRawGeometry_ = function({}, rawFeature, flatCoordinates, ends) {
+      var readRawGeometry_ = MVT.readRawGeometry_;
+      MVT.readRawGeometry_ = function({}, rawFeature, flatCoordinates, ends) {
         flatCoordinates.push(0, 0);
         ends.push(2);
       };
       var feature = format.createFeature_({}, rawFeature);
-      _ol_format_MVT_.readRawGeometry_ = readRawGeometry_;
+      MVT.readRawGeometry_ = readRawGeometry_;
       var geometry = feature.getGeometry();
       expect(geometry).to.be.a(Point);
       expect(feature.get('myGeom')).to.equal(geometry);
@@ -117,7 +117,7 @@ describe('ol.format.MVT', function() {
     });
 
     it('detects a Polygon', function() {
-      var format = new _ol_format_MVT_({
+      var format = new MVT({
         featureClass: _ol_Feature_
       });
       var rawFeature = {
@@ -127,20 +127,20 @@ describe('ol.format.MVT', function() {
           name: 'layer1'
         }
       };
-      var readRawGeometry_ = _ol_format_MVT_.readRawGeometry_;
-      _ol_format_MVT_.readRawGeometry_ = function({}, rawFeature, flatCoordinates, ends) {
+      var readRawGeometry_ = MVT.readRawGeometry_;
+      MVT.readRawGeometry_ = function({}, rawFeature, flatCoordinates, ends) {
         flatCoordinates.push(0, 0, 3, 0, 3, 3, 3, 0, 0, 0);
         flatCoordinates.push(1, 1, 1, 2, 2, 2, 2, 1, 1, 1);
         ends.push(10, 20);
       };
       var feature = format.createFeature_({}, rawFeature);
-      _ol_format_MVT_.readRawGeometry_ = readRawGeometry_;
+      MVT.readRawGeometry_ = readRawGeometry_;
       var geometry = feature.getGeometry();
       expect(geometry).to.be.a(Polygon);
     });
 
     it('detects a MultiPolygon', function() {
-      var format = new _ol_format_MVT_({
+      var format = new MVT({
         featureClass: _ol_Feature_
       });
       var rawFeature = {
@@ -150,20 +150,20 @@ describe('ol.format.MVT', function() {
           name: 'layer1'
         }
       };
-      var readRawGeometry_ = _ol_format_MVT_.readRawGeometry_;
-      _ol_format_MVT_.readRawGeometry_ = function({}, rawFeature, flatCoordinates, ends) {
+      var readRawGeometry_ = MVT.readRawGeometry_;
+      MVT.readRawGeometry_ = function({}, rawFeature, flatCoordinates, ends) {
         flatCoordinates.push(0, 0, 1, 0, 1, 1, 1, 0, 0, 0);
         flatCoordinates.push(1, 1, 2, 1, 2, 2, 2, 1, 1, 1);
         ends.push(10, 20);
       };
       var feature = format.createFeature_({}, rawFeature);
-      _ol_format_MVT_.readRawGeometry_ = readRawGeometry_;
+      MVT.readRawGeometry_ = readRawGeometry_;
       var geometry = feature.getGeometry();
       expect(geometry).to.be.a(MultiPolygon);
     });
 
     it('creates ol.render.Feature instances', function() {
-      var format = new _ol_format_MVT_();
+      var format = new MVT();
       var rawFeature = {
         type: 3,
         properties: {
@@ -173,10 +173,10 @@ describe('ol.format.MVT', function() {
           name: 'layer1'
         }
       };
-      var readRawGeometry_ = _ol_format_MVT_.readRawGeometry_;
+      var readRawGeometry_ = MVT.readRawGeometry_;
       var createdFlatCoordinates;
       var createdEnds;
-      _ol_format_MVT_.readRawGeometry_ = function({}, rawFeature, flatCoordinates, ends) {
+      MVT.readRawGeometry_ = function({}, rawFeature, flatCoordinates, ends) {
         flatCoordinates.push(0, 0, 1, 0, 1, 1, 1, 0, 0, 0);
         flatCoordinates.push(1, 1, 2, 1, 2, 2, 2, 1, 1, 1);
         createdFlatCoordinates = flatCoordinates;
@@ -184,7 +184,7 @@ describe('ol.format.MVT', function() {
         createdEnds = ends;
       };
       var feature = format.createFeature_({}, rawFeature);
-      _ol_format_MVT_.readRawGeometry_ = readRawGeometry_;
+      MVT.readRawGeometry_ = readRawGeometry_;
       expect(feature).to.be.a(_ol_render_Feature_);
       expect(feature.getType()).to.be('Polygon');
       expect(feature.getFlatCoordinates()).to.equal(createdFlatCoordinates);
diff --git a/test/spec/ol/renderer/canvas/vectortilelayer.test.js b/test/spec/ol/renderer/canvas/vectortilelayer.test.js
index 77c3f7889d..da6d0af867 100644
--- a/test/spec/ol/renderer/canvas/vectortilelayer.test.js
+++ b/test/spec/ol/renderer/canvas/vectortilelayer.test.js
@@ -7,7 +7,7 @@ import _ol_VectorImageTile_ from '../../../../../src/ol/VectorImageTile.js';
 import _ol_VectorTile_ from '../../../../../src/ol/VectorTile.js';
 import _ol_View_ from '../../../../../src/ol/View.js';
 import * as _ol_extent_ from '../../../../../src/ol/extent.js';
-import _ol_format_MVT_ from '../../../../../src/ol/format/MVT.js';
+import MVT from '../../../../../src/ol/format/MVT.js';
 import Point from '../../../../../src/ol/geom/Point.js';
 import _ol_layer_VectorTile_ from '../../../../../src/ol/layer/VectorTile.js';
 import {get as getProjection, fromLonLat} from '../../../../../src/ol/proj.js';
@@ -68,7 +68,7 @@ describe('ol.renderer.canvas.VectorTileLayer', function() {
       };
       inherits(TileClass, _ol_VectorTile_);
       source = new _ol_source_VectorTile_({
-        format: new _ol_format_MVT_(),
+        format: new MVT(),
         tileClass: TileClass,
         tileGrid: _ol_tilegrid_.createXYZ()
       });
@@ -350,7 +350,7 @@ describe('ol.renderer.canvas.VectorTileLayer', function() {
       document.body.appendChild(target);
       var extent = [1824704.739223726, 6141868.096770482, 1827150.7241288517, 6144314.081675608];
       var source = new _ol_source_VectorTile_({
-        format: new _ol_format_MVT_(),
+        format: new MVT(),
         url: 'spec/ol/data/14-8938-5680.vector.pbf',
         minZoom: 14,
         maxZoom: 14
diff --git a/test/spec/ol/source/vectortile.test.js b/test/spec/ol/source/vectortile.test.js
index 11b4ad8c71..c9ee4f4743 100644
--- a/test/spec/ol/source/vectortile.test.js
+++ b/test/spec/ol/source/vectortile.test.js
@@ -2,7 +2,7 @@ import _ol_Map_ from '../../../../src/ol/Map.js';
 import _ol_View_ from '../../../../src/ol/View.js';
 import _ol_VectorImageTile_ from '../../../../src/ol/VectorImageTile.js';
 import _ol_VectorTile_ from '../../../../src/ol/VectorTile.js';
-import _ol_format_MVT_ from '../../../../src/ol/format/MVT.js';
+import MVT from '../../../../src/ol/format/MVT.js';
 import _ol_layer_VectorTile_ from '../../../../src/ol/layer/VectorTile.js';
 import {get as getProjection} from '../../../../src/ol/proj.js';
 import _ol_source_VectorTile_ from '../../../../src/ol/source/VectorTile.js';
@@ -11,7 +11,7 @@ import _ol_tilegrid_TileGrid_ from '../../../../src/ol/tilegrid/TileGrid.js';
 
 describe('ol.source.VectorTile', function() {
 
-  var format = new _ol_format_MVT_();
+  var format = new MVT();
   var source = new _ol_source_VectorTile_({
     format: format,
     tilePixelRatio: 8,