diff --git a/backend/src/uxbox/media.clj b/backend/src/uxbox/media.clj
index acd92bfe7..272bffcd7 100644
--- a/backend/src/uxbox/media.clj
+++ b/backend/src/uxbox/media.clj
@@ -17,6 +17,7 @@
    [mount.core :refer [defstate]]
    [uxbox.config :as cfg]
    [uxbox.common.data :as d]
+   [uxbox.common.media :as cm]
    [uxbox.common.exceptions :as ex]
    [uxbox.common.spec :as us]
    [uxbox.media-storage :as mst]
@@ -40,15 +41,14 @@
 (s/def ::path (s/or :path fs/path?
                     :string string?
                     :file fs/file?))
-(s/def ::mtype string?)
 
 (s/def ::input
   (s/keys :req-un [::path]
-          :opt-un [::mtype]))
+          :opt-un [::cm/mtype]))
 
 (s/def ::width integer?)
 (s/def ::height integer?)
-(s/def ::format #{:jpeg :webp :png :svg})
+(s/def ::format #{:jpeg :webp :png})
 (s/def ::quality #(< 0 % 101))
 
 (s/def ::thumbnail-params
@@ -57,39 +57,11 @@
 ;; Related info on how thumbnails generation
 ;;  http://www.imagemagick.org/Usage/thumbnails/
 
-(def valid-media-types
-  #{"image/jpeg", "image/png", "image/webp", "image/svg+xml"})
-
-(defn format->extension
-  [format]
-  (case format
-    :png  ".png"
-    :jpeg ".jpg"
-    :webp ".webp"
-    :svg  ".svg"))
-
-(defn format->mtype
-  [format]
-  (case format
-    :png  "image/png"
-    :jpeg "image/jpeg"
-    :webp "image/webp"
-    :svg  "image/svg+xml"))
-
-(defn mtype->format
-  [mtype]
-  (case mtype
-    "image/png"     :png
-    "image/jpeg"    :jpeg
-    "image/webp"    :webp
-    "image/svg+xml" :svg
-    nil))
-
 (defn- generic-process
   [{:keys [input format quality operation] :as params}]
   (let [{:keys [path mtype]} input
-        format (or (mtype->format mtype) format)
-        ext    (format->extension format)
+        format (or (cm/mtype->format mtype) format)
+        ext    (cm/format->extension format)
         tmp (fs/create-tempfile :suffix ext)]
 
     (doto (ConvertCmd.)
@@ -99,7 +71,7 @@
       (fs/delete tmp)
       (assoc params
              :format format
-             :mtype  (format->mtype format)
+             :mtype  (cm/format->mtype format)
              :data   (ByteArrayInputStream. thumbnail-data)))))
 
 (defmulti process :cmd)
@@ -170,6 +142,9 @@
     (finally
       (.release semaphore))))
 
+
+;; --- Utility functions
+
 (defn resolve-urls
   [row src dst]
   (s/assert map? row)
@@ -201,7 +176,7 @@
 
 (defn validate-media-type
   [media-type]
-  (when-not (valid-media-types media-type)
+  (when-not (cm/valid-media-types media-type)
     (ex/raise :type :validation
               :code :media-type-not-allowed
               :hint "Seems like you are uploading an invalid media object")))
@@ -211,14 +186,14 @@
   (let [result (http/get! url {:as :byte-array})
         data (:body result)
         content-type (get (:headers result) "content-type")
-        format (mtype->format content-type)]
+        format (cm/mtype->format content-type)]
     (if (nil? format)
       (ex/raise :type :validation
                 :code :media-type-not-allowed
                 :hint "Seems like the url points to an invalid media object.")
       (let [tempfile (fs/create-tempfile)
             base-filename (first (fs/split-ext (fs/name tempfile)))
-            filename (str base-filename (format->extension format))]
+            filename (str base-filename (cm/format->extension format))]
         (with-open [ostream (io/output-stream tempfile)]
           (.write ostream data))
         {:filename filename
diff --git a/backend/src/uxbox/services/mutations/media.clj b/backend/src/uxbox/services/mutations/media.clj
index 90372e88e..e3f50c7be 100644
--- a/backend/src/uxbox/services/mutations/media.clj
+++ b/backend/src/uxbox/services/mutations/media.clj
@@ -11,6 +11,7 @@
   (:require
    [clojure.spec.alpha :as s]
    [datoteka.core :as fs]
+   [uxbox.common.media :as cm]
    [uxbox.common.exceptions :as ex]
    [uxbox.common.spec :as us]
    [uxbox.common.uuid :as uuid]
@@ -47,7 +48,7 @@
 
 (s/def :uxbox$upload/filename ::us/string)
 (s/def :uxbox$upload/size ::us/integer)
-(s/def :uxbox$upload/content-type media/valid-media-types)
+(s/def :uxbox$upload/content-type cm/valid-media-types)
 (s/def :uxbox$upload/tempfile any?)
 
 (s/def ::upload
@@ -154,7 +155,7 @@
 
         name  (str "thumbnail-"
                    (first (fs/split-ext (fs/name (:path input))))
-                   (media/format->extension (:format thumb)))
+                   (cm/format->extension (:format thumb)))
         path  (ust/save! mst/media-storage name (:data thumb))]
 
     (-> thumb
diff --git a/backend/src/uxbox/services/mutations/profile.clj b/backend/src/uxbox/services/mutations/profile.clj
index 5cdb697f8..aec25ab8e 100644
--- a/backend/src/uxbox/services/mutations/profile.clj
+++ b/backend/src/uxbox/services/mutations/profile.clj
@@ -20,6 +20,7 @@
    [uxbox.common.exceptions :as ex]
    [uxbox.common.spec :as us]
    [uxbox.common.uuid :as uuid]
+   [uxbox.common.media :as cm]
    [uxbox.config :as cfg]
    [uxbox.db :as db]
    [uxbox.emails :as emails]
@@ -299,7 +300,7 @@
                   :height 256
                   :input  {:path (fs/path (:tempfile file))
                            :mtype (:content-type file)}})
-        name   (str prefix (media/format->extension (:format thumb)))]
+        name   (str prefix (cm/format->extension (:format thumb)))]
     (ust/save! mst/media-storage name (:data thumb))))
 
 (defn- update-profile-photo
diff --git a/common/uxbox/common/media.cljc b/common/uxbox/common/media.cljc
new file mode 100644
index 000000000..2b0f38534
--- /dev/null
+++ b/common/uxbox/common/media.cljc
@@ -0,0 +1,65 @@
+;; This Source Code Form is subject to the terms of the Mozilla Public
+;; License, v. 2.0. If a copy of the MPL was not distributed with this
+;; file, You can obtain one at http://mozilla.org/MPL/2.0/.
+;;
+;; This Source Code Form is "Incompatible With Secondary Licenses", as
+;; defined by the Mozilla Public License, v. 2.0.
+;;
+;; Copyright (c) 2020 UXBOX Labs SL
+
+(ns uxbox.common.media
+  (:require
+   [clojure.spec.alpha :as s]
+   [cuerdas.core :as str]))
+
+(def valid-media-types
+  #{"image/jpeg", "image/png", "image/webp", "image/svg+xml"})
+
+(def str-media-types (str/join "," valid-media-types))
+
+(defn format->extension
+  [format]
+  (case format
+    :png  ".png"
+    :jpeg ".jpg"
+    :webp ".webp"
+    :svg  ".svg"))
+
+(defn format->mtype
+  [format]
+  (case format
+    :png  "image/png"
+    :jpeg "image/jpeg"
+    :webp "image/webp"
+    :svg  "image/svg+xml"))
+
+(defn mtype->format
+  [mtype]
+  (case mtype
+    "image/png"     :png
+    "image/jpeg"    :jpeg
+    "image/webp"    :webp
+    "image/svg+xml" :svg
+    nil))
+
+(def max-file-size (* 5 1024 1024))
+
+(s/def ::id uuid?)
+(s/def ::name string?)
+(s/def ::width number?)
+(s/def ::height number?)
+(s/def ::created-at inst?)
+(s/def ::modified-at inst?)
+(s/def ::mtype string?)
+(s/def ::uri string?)
+
+(s/def ::media-object
+  (s/keys :req-un [::id
+                   ::name
+                   ::width
+                   ::height
+                   ::mtype
+                   ::created-at
+                   ::modified-at
+                   ::uri]))
+
diff --git a/frontend/src/uxbox/main/data/media.cljs b/frontend/src/uxbox/main/data/media.cljs
index b122ea461..9b01ef506 100644
--- a/frontend/src/uxbox/main/data/media.cljs
+++ b/frontend/src/uxbox/main/data/media.cljs
@@ -12,6 +12,7 @@
    [potok.core :as ptk]
    [uxbox.common.spec :as us]
    [uxbox.common.data :as d]
+   [uxbox.common.media :as cm]
    [uxbox.main.data.messages :as dm]
    [uxbox.main.store :as st]
    [uxbox.main.repo :as rp]
@@ -24,40 +25,17 @@
 
 ;; --- Specs
 
-(s/def ::id uuid?)
-(s/def ::name string?)
-(s/def ::width number?)
-(s/def ::height number?)
-(s/def ::created-at inst?)
-(s/def ::modified-at inst?)
-(s/def ::mtype string?)
-(s/def ::uri string?)
-
-(s/def ::media-object
-  (s/keys :req-un [::id
-                   ::name
-                   ::width
-                   ::height
-                   ::mtype
-                   ::created-at
-                   ::modified-at
-                   ::uri]))
-
 (s/def ::js-file #(instance? js/Blob %))
 (s/def ::js-files (s/coll-of ::js-file))
 
-(def allowed-media-types #{"image/jpeg" "image/png" "image/webp" "image/svg+xml"})
-(def str-media-types (str/join "," allowed-media-types))
-(def max-file-size (* 5 1024 1024))
-
 ;; --- Utility functions
 
 (defn validate-file
   ;; Check that a file obtained with the file javascript API is valid.
   [file]
-  (when (> (.-size file) max-file-size)
+  (when (> (.-size file) cm/max-file-size)
     (throw (ex-info (tr "errors.media-too-large") {})))
-  (when-not (contains? allowed-media-types (.-type file))
+  (when-not (contains? cm/valid-media-types (.-type file))
     (throw (ex-info (tr "errors.media-format-unsupported") {})))
   file)
 
diff --git a/frontend/src/uxbox/main/data/workspace/persistence.cljs b/frontend/src/uxbox/main/data/workspace/persistence.cljs
index b264bbb64..defc51b66 100644
--- a/frontend/src/uxbox/main/data/workspace/persistence.cljs
+++ b/frontend/src/uxbox/main/data/workspace/persistence.cljs
@@ -13,6 +13,7 @@
    [cljs.spec.alpha :as s]
    [potok.core :as ptk]
    [uxbox.common.data :as d]
+   [uxbox.common.media :as cm]
    [uxbox.common.geom.point :as gpt]
    [uxbox.common.pages :as cp]
    [uxbox.common.spec :as us]
@@ -409,7 +410,7 @@
   [file-id is-local media-object]
   (us/verify ::us/uuid file-id)
   (us/verify ::us/boolean is-local)
-  (us/verify ::di/media-object media-object)
+  (us/verify ::cm/media-object media-object)
   (ptk/reify ::upload-media-objects-result
     ptk/UpdateEvent
     (update [_ state]
diff --git a/frontend/src/uxbox/main/ui/workspace/left_toolbar.cljs b/frontend/src/uxbox/main/ui/workspace/left_toolbar.cljs
index 5bcaaf133..2c60eab33 100644
--- a/frontend/src/uxbox/main/ui/workspace/left_toolbar.cljs
+++ b/frontend/src/uxbox/main/ui/workspace/left_toolbar.cljs
@@ -11,8 +11,8 @@
 (ns uxbox.main.ui.workspace.left-toolbar
   (:require
    [rumext.alpha :as mf]
+   [uxbox.common.media :as cm]
    [uxbox.main.refs :as refs]
-   [uxbox.main.data.media :as di]
    [uxbox.main.data.workspace :as dw]
    [uxbox.main.store :as st]
    [uxbox.main.ui.components.file-uploader :refer [file-uploader]]
@@ -74,7 +74,7 @@
          :on-click on-image}
         [:*
           i/image
-          [:& file-uploader {:accept di/str-media-types
+          [:& file-uploader {:accept cm/str-media-types
                              :multi true
                              :input-ref file-input
                              :on-selected on-files-selected}]]]
diff --git a/frontend/src/uxbox/main/ui/workspace/sidebar/assets.cljs b/frontend/src/uxbox/main/ui/workspace/sidebar/assets.cljs
index cc099cde5..43d86c2d4 100644
--- a/frontend/src/uxbox/main/ui/workspace/sidebar/assets.cljs
+++ b/frontend/src/uxbox/main/ui/workspace/sidebar/assets.cljs
@@ -13,11 +13,11 @@
    [cuerdas.core :as str]
    [rumext.alpha :as mf]
    [uxbox.common.data :as d]
+   [uxbox.common.media :as cm]
    [uxbox.common.pages :as cp]
    [uxbox.common.geom.shapes :as geom]
    [uxbox.common.geom.point :as gpt]
    [uxbox.main.ui.icons :as i]
-   [uxbox.main.data.media :as di]
    [uxbox.main.data.workspace :as dw]
    [uxbox.main.data.colors :as dcol]
    [uxbox.main.refs :as refs]
@@ -114,7 +114,7 @@
       [:span (str "\u00A0(") (count media-objects) ")"] ;; Unicode 00A0 is non-breaking space
       [:div.group-button {:on-click add-graphic}
        i/plus
-       [:& file-uploader {:accept di/str-media-types
+       [:& file-uploader {:accept cm/str-media-types
                           :multi true
                           :input-ref file-input
                           :on-selected on-files-selected}]]]