diff --git a/src/services/import/mime.js b/src/services/import/mime.js
new file mode 100644
index 000000000..485c0cbee
--- /dev/null
+++ b/src/services/import/mime.js
@@ -0,0 +1,113 @@
+"use strict";
+
+const mimeTypes = require('mime-types');
+const path = require('path');
+
+const CODE_MIME_TYPES = {
+    'text/plain': true,
+    'text/x-csrc': true,
+    'text/x-c++src': true,
+    'text/x-csharp': true,
+    'text/x-clojure': true,
+    'text/css': true,
+    'text/x-dockerfile': true,
+    'text/x-erlang': true,
+    'text/x-feature': true,
+    'text/x-go': true,
+    'text/x-groovy': true,
+    'text/x-haskell': true,
+    'text/html': true,
+    'message/http': true,
+    'text/x-java': true,
+    'application/javascript': 'application/javascript;env=frontend',
+    'application/x-javascript': 'application/javascript;env=frontend',
+    'application/json': true,
+    'text/x-kotlin': true,
+    'text/x-stex': true,
+    'text/x-lua': true,
+    // possibly later migrate to text/markdown as primary MIME
+    'text/markdown': 'text/x-markdown',
+    'text/x-markdown': true,
+    'text/x-objectivec': true,
+    'text/x-pascal': true,
+    'text/x-perl': true,
+    'text/x-php': true,
+    'text/x-python': true,
+    'text/x-ruby': true,
+    'text/x-rustsrc': true,
+    'text/x-scala': true,
+    'text/x-sh': true,
+    'text/x-sql': true,
+    'text/x-swift': true,
+    'text/xml': true,
+    'text/x-yaml': true
+};
+
+// extensions missing in mime-db
+const EXTENSION_TO_MIME = {
+    ".c": "text/x-csrc",
+    ".cs": "text/x-csharp",
+    ".clj": "text/x-clojure",
+    ".erl": "text/x-erlang",
+    ".hrl": "text/x-erlang",
+    ".feature": "text/x-feature",
+    ".go": "text/x-go",
+    ".groovy": "text/x-groovy",
+    ".hs": "text/x-haskell",
+    ".lhs": "text/x-haskell",
+    ".http": "message/http",
+    ".kt": "text/x-kotlin",
+    ".m": "text/x-objectivec",
+    ".py": "text/x-python",
+    ".rb": "text/x-ruby",
+    ".scala": "text/x-scala",
+    ".swift": "text/x-swift"
+};
+
+function getMime(fileName) {
+    if (fileName.toLowerCase() === 'dockerfile') {
+        return "text/x-dockerfile";
+    }
+
+    const ext = path.extname(fileName).toLowerCase();
+
+    if (ext in EXTENSION_TO_MIME) {
+        return EXTENSION_TO_MIME[ext];
+    }
+
+    return mimeTypes.lookup(fileName);
+}
+
+function getType(importContext, mime) {
+    mime = mime.toLowerCase();
+
+    if (importContext.textImportedAsText && (mime === 'text/html' || ['text/markdown', 'text/x-markdown'].includes(mime))) {
+        return 'text';
+    }
+    else if (importContext.codeImportedAsCode && mime in CODE_MIME_TYPES) {
+        return 'code';
+    }
+    else if (mime.startsWith("image/")) {
+        return 'image';
+    }
+    else {
+        return 'file';
+    }
+}
+
+function normalizeMimeType(mime) {
+    mime = mime.toLowerCase();
+
+    if (!(mime in CODE_MIME_TYPES) || CODE_MIME_TYPES[mime] === true) {
+        return mime;
+    }
+    else {
+        return CODE_MIME_TYPES[mime];
+    }
+}
+
+module.exports = {
+    getMime,
+    getType,
+    normalizeMimeType
+};
\ No newline at end of file
diff --git a/src/services/import/single.js b/src/services/import/single.js
index 582cf9361..c46bb691a 100644
--- a/src/services/import/single.js
+++ b/src/services/import/single.js
@@ -5,84 +5,10 @@ const imageService = require('../../services/image');
 const protectedSessionService = require('../protected_session');
 const commonmark = require('commonmark');
 const path = require('path');
-const mimeTypes = require('mime-types');
-
-const CODE_MIME_TYPES = {
-    'text/plain': true,
-    'text/x-csrc': true,
-    'text/x-c++src': true,
-    'text/x-csharp': true,
-    'text/x-clojure': true,
-    'text/css': true,
-    'text/x-dockerfile': true,
-    'text/x-erlang': true,
-    'text/x-feature': true,
-    'text/x-go': true,
-    'text/x-groovy': true,
-    'text/x-haskell': true,
-    'text/html': true,
-    'message/http': true,
-    'text/x-java': true,
-    'application/javascript': 'application/javascript;env=frontend',
-    'application/x-javascript': 'application/javascript;env=frontend',
-    'application/json': true,
-    'text/x-kotlin': true,
-    'text/x-stex': true,
-    'text/x-lua': true,
-    // possibly later migrate to text/markdown as primary MIME
-    'text/markdown': 'text/x-markdown',
-    'text/x-markdown': true,
-    'text/x-objectivec': true,
-    'text/x-pascal': true,
-    'text/x-perl': true,
-    'text/x-php': true,
-    'text/x-python': true,
-    'text/x-ruby': true,
-    'text/x-rustsrc': true,
-    'text/x-scala': true,
-    'text/x-sh': true,
-    'text/x-sql': true,
-    'text/x-swift': true,
-    'text/xml': true,
-    'text/x-yaml': true
-};
-
-// extensions missing in mime-db
-const EXTENSION_TO_MIME = {
-    ".cs": "text/x-csharp",
-    ".clj": "text/x-clojure",
-    ".erl": "text/x-erlang",
-    ".hrl": "text/x-erlang",
-    ".feature": "text/x-feature",
-    ".go": "text/x-go",
-    ".groovy": "text/x-groovy",
-    ".hs": "text/x-haskell",
-    ".lhs": "text/x-haskell",
-    ".http": "message/http",
-    ".kt": "text/x-kotlin",
-    ".m": "text/x-objectivec",
-    ".py": "text/x-python",
-    ".rb": "text/x-ruby",
-    ".scala": "text/x-scala",
-    ".swift": "text/x-swift"
-};
-
-function getMime(fileName) {
-    if (fileName.toLowerCase() === 'dockerfile') {
-        return "text/x-dockerfile";
-    }
-
-    const ext = path.extname(fileName).toLowerCase();
-
-    if (ext in EXTENSION_TO_MIME) {
-        return EXTENSION_TO_MIME[ext];
-    }
-
-    return mimeTypes.lookup(fileName);
-}
+const mimeService = require('./mime');
 
 async function importSingleFile(importContext, file, parentNote) {
-    const mime = getMime(file.originalname);
+    const mime = mimeService.getMime(file.originalname);
 
     if (importContext.textImportedAsText) {
         if (mime === 'text/html') {
@@ -94,7 +20,7 @@ async function importSingleFile(importContext, file, parentNote) {
         }
     }
 
-    if (importContext.codeImportedAsCode && mime in CODE_MIME_TYPES) {
+    if (importContext.codeImportedAsCode && mimeService.getType(importContext, mime) === 'code') {
         return await importCodeNote(importContext, file, parentNote);
     }
 
@@ -121,7 +47,7 @@ async function importFile(importContext, file, parentNote) {
         target: 'into',
         isProtected: parentNote.isProtected && protectedSessionService.isProtectedSessionAvailable(),
         type: 'file',
-        mime: getMime(originalName),
+        mime: mimeService.getMime(originalName),
         attributes: [
             { type: "label", name: "originalFileName", value: originalName },
             { type: "label", name: "fileSize", value: size }
@@ -136,8 +62,8 @@ async function importFile(importContext, file, parentNote) {
 async function importCodeNote(importContext, file, parentNote) {
     const title = getFileNameWithoutExtension(file.originalname);
     const content = file.buffer.toString("UTF-8");
-    const detectedMime = getMime(file.originalname);
-    const mime = CODE_MIME_TYPES[detectedMime] === true ? detectedMime : CODE_MIME_TYPES[detectedMime];
+    const detectedMime = mimeService.getMime(file.originalname);
+    const mime = mimeService.normalizeMimeType(detectedMime);
 
     const {note} = await noteService.createNote(parentNote.noteId, title, content, {
         type: 'code',
diff --git a/src/services/import/tar.js b/src/services/import/tar.js
index 899fc5065..7da144dfc 100644
--- a/src/services/import/tar.js
+++ b/src/services/import/tar.js
@@ -1,5 +1,6 @@
 "use strict";
 
+
 const Attribute = require('../../entities/attribute');
 const utils = require('../../services/utils');
 const log = require('../../services/log');
@@ -11,9 +12,9 @@ const tar = require('tar-stream');
 const stream = require('stream');
 const path = require('path');
 const commonmark = require('commonmark');
-const mimeTypes = require('mime-types');
 const ImportContext = require('../import_context');
 const protectedSessionService = require('../protected_session');
+const mimeService = require("./mime");
 
 /**
  * @param {ImportContext} importContext
@@ -140,20 +141,11 @@ async function importTar(importContext, fileBuffer, importRootNote) {
         return noteId;
     }
 
-    function detectFileTypeAndMime(filePath) {
-        const mime = mimeTypes.lookup(filePath);
-        let type = 'file';
+    function detectFileTypeAndMime(importContext, filePath) {
+        const mime = mimeService.getMime(filePath);
+        const type = mimeService.getType(importContext, mime);
 
-        if (mime) {
-            if (mime === 'text/html' || ['text/markdown', 'text/x-markdown'].includes(mime)) {
-                type = 'text';
-            }
-            else if (mime.startsWith('image/')) {
-                type = 'image';
-            }
-        }
-
-        return { type, mime };
+        return { mime, type };
     }
 
     async function saveAttributes(note, noteMeta) {
@@ -264,7 +256,7 @@ async function importTar(importContext, fileBuffer, importRootNote) {
             return;
         }
 
-        const {type, mime} = noteMeta ? noteMeta : detectFileTypeAndMime(filePath);
+        const {type, mime} = noteMeta ? noteMeta : detectFileTypeAndMime(importContext, filePath);
 
         if (type !== 'file' && type !== 'image') {
             content = content.toString("UTF-8");