diff --git a/package-lock.json b/package-lock.json
index 1c347a6..4071f65 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -39,7 +39,6 @@
         "react-toastify": "10.0.5",
         "react-window": "1.8.10",
         "swiper": "11.1.11",
-        "turndown": "^7.2.0",
         "uuid": "10.0.0",
         "webln": "0.3.2"
       },
@@ -2058,12 +2057,6 @@
         "react-dom": ">= 18 || >= 19"
       }
     },
-    "node_modules/@mixmark-io/domino": {
-      "version": "2.2.0",
-      "resolved": "https://registry.npmjs.org/@mixmark-io/domino/-/domino-2.2.0.tgz",
-      "integrity": "sha512-Y28PR25bHXUg88kCV7nivXrP2Nj2RueZ3/l/jdx6J9f8J4nsEGcgX0Qe6lt7Pa+J79+kPiJU3LguR6O/6zrLOw==",
-      "license": "BSD-2-Clause"
-    },
     "node_modules/@noble/ciphers": {
       "version": "0.5.3",
       "resolved": "https://registry.npmjs.org/@noble/ciphers/-/ciphers-0.5.3.tgz",
@@ -8037,15 +8030,6 @@
       "resolved": "https://registry.npmjs.org/tstl/-/tstl-2.5.16.tgz",
       "integrity": "sha512-+O2ybLVLKcBwKm4HymCEwZIT0PpwS3gCYnxfSDEjJEKADvIFruaQjd3m7CAKNU1c7N3X3WjVz87re7TA2A5FUw=="
     },
-    "node_modules/turndown": {
-      "version": "7.2.0",
-      "resolved": "https://registry.npmjs.org/turndown/-/turndown-7.2.0.tgz",
-      "integrity": "sha512-eCZGBN4nNNqM9Owkv9HAtWRYfLA4h909E/WGAWWBpmB275ehNhZyk87/Tpvjbp0jjNl9XwCsbe6bm6CqFsgD+A==",
-      "license": "MIT",
-      "dependencies": {
-        "@mixmark-io/domino": "^2.2.0"
-      }
-    },
     "node_modules/type": {
       "version": "2.7.3",
       "resolved": "https://registry.npmjs.org/type/-/type-2.7.3.tgz",
diff --git a/package.json b/package.json
index 8ac96df..0dfffbf 100644
--- a/package.json
+++ b/package.json
@@ -41,7 +41,6 @@
     "react-toastify": "10.0.5",
     "react-window": "1.8.10",
     "swiper": "11.1.11",
-    "turndown": "^7.2.0",
     "uuid": "10.0.0",
     "webln": "0.3.2"
   },
diff --git a/src/components/Markdown/Editor.tsx b/src/components/Markdown/Editor.tsx
index 45bea77..f2baa8d 100644
--- a/src/components/Markdown/Editor.tsx
+++ b/src/components/Markdown/Editor.tsx
@@ -4,6 +4,8 @@ import {
   codeBlockPlugin,
   CodeToggle,
   CreateLink,
+  diffSourcePlugin,
+  DiffSourceToggleWrapper,
   directivesPlugin,
   headingsPlugin,
   imagePlugin,
@@ -68,34 +70,42 @@ export const Editor = React.memo(
       () => [
         toolbarPlugin({
           toolbarContents: () => (
-            <>
-              <UndoRedo />
-              <Separator />
-              <BoldItalicUnderlineToggles />
-              <CodeToggle />
-              <Separator />
-              <StrikeThroughSupSubToggles />
-              <Separator />
-              <ListsToggle />
-              <Separator />
-              <BlockTypeSelect />
-              <Separator />
+            <DiffSourceToggleWrapper
+              children={
+                <>
+                  <UndoRedo />
+                  <Separator />
+                  <BoldItalicUnderlineToggles />
+                  <CodeToggle />
+                  <Separator />
+                  <StrikeThroughSupSubToggles />
+                  <Separator />
+                  <ListsToggle />
+                  <Separator />
+                  <BlockTypeSelect />
+                  <Separator />
 
-              <CreateLink />
-              <InsertImage />
-              <YouTubeButton />
+                  <CreateLink />
+                  <InsertImage />
+                  <YouTubeButton />
 
-              <Separator />
+                  <Separator />
 
-              <InsertTable />
-              <InsertThematicBreak />
+                  <InsertTable />
+                  <InsertThematicBreak />
 
-              <Separator />
-              <InsertCodeBlock />
-            </>
+                  <Separator />
+                  <InsertCodeBlock />
+                </>
+              }
+            />
           )
         }),
         headingsPlugin(),
+        diffSourcePlugin({
+          viewMode: 'rich-text',
+          diffMarkdown: markdown
+        }),
         quotePlugin(),
         imagePlugin({
           ImageDialog: ImageDialog
@@ -118,6 +128,7 @@ export const Editor = React.memo(
           codeBlockEditorDescriptors: [PlainTextCodeEditorDescriptor]
         })
       ],
+      // eslint-disable-next-line react-hooks/exhaustive-deps
       []
     )
 
diff --git a/src/components/ModForm.tsx b/src/components/ModForm.tsx
index afeccd5..a4a86cd 100644
--- a/src/components/ModForm.tsx
+++ b/src/components/ModForm.tsx
@@ -22,7 +22,12 @@ import {
   ModPageLoaderResult,
   SubmitModActionResult
 } from '../types'
-import { initializeFormState, MOD_DRAFT_CACHE_KEY } from '../utils'
+import {
+  initializeFormState,
+  log,
+  LogType,
+  MOD_DRAFT_CACHE_KEY
+} from '../utils'
 import { CheckboxField, InputField, InputFieldWithImageUpload } from './Inputs'
 import { OriginalAuthor } from './OriginalAuthor'
 import { CategoryAutocomplete } from './CategoryAutocomplete'
@@ -32,6 +37,7 @@ import { MEDIA_OPTIONS } from 'controllers'
 import { InputError } from './Inputs/Error'
 import { ImageUpload } from './Inputs/ImageUpload'
 import { useLocalCache } from 'hooks/useLocalCache'
+import { toast } from 'react-toastify'
 
 interface GameOption {
   value: string
@@ -59,6 +65,13 @@ export const ModForm = () => {
     isEditing ? initializeFormState(mod) : cache ? cache : initializeFormState()
   )
 
+  // Enable backwards compatibility with the mods that used html
+  const body = useMemo(() => {
+    // Replace the most problematic HTML tags (<br>)
+    const fixed = formState.body.replaceAll(/<br>/g, '\r\n')
+    return fixed
+  }, [formState.body])
+
   useEffect(() => {
     if (!isEditing) {
       const newCache = _.cloneDeep(formState)
@@ -253,11 +266,15 @@ export const ModForm = () => {
         <div className='inputMain'>
           <Editor
             ref={editorRef}
-            markdown={formState.body}
+            markdown={body}
             placeholder="Here's what this mod is all about"
             onChange={(md) => {
               handleInputChange('body', md)
             }}
+            onError={(payload) => {
+              toast.error('Markdown error. Fix manually in the source mode.')
+              log(true, LogType.Error, payload.error)
+            }}
           />
         </div>
         {typeof formErrors?.body !== 'undefined' && (