diff --git a/novelwriter/core/docbuild.py b/novelwriter/core/docbuild.py
index 9c17e73e..a6d47740 100644
--- a/novelwriter/core/docbuild.py
+++ b/novelwriter/core/docbuild.py
@@ -55,7 +55,7 @@ class NWBuildDocument:
 
     __slots__ = (
         "_project", "_build", "_queue", "_error", "_cache", "_count",
-        "_outline", "_preview"
+        "_outline",
     )
 
     def __init__(self, project: NWProject, build: BuildSettings) -> None:
@@ -66,7 +66,6 @@ class NWBuildDocument:
         self._cache = None
         self._count = False
         self._outline = False
-        self._preview = False
         return
 
     ##
@@ -100,15 +99,6 @@ class NWBuildDocument:
         self._outline = state
         return
 
-    def setPreviewMode(self, state: bool) -> None:
-        """Set the preview mode of the build. This also enables stats
-        count and outline mode.
-        """
-        self._preview = state
-        self._outline = state
-        self._count = state
-        return
-
     ##
     #  Special Methods
     ##
@@ -140,10 +130,12 @@ class NWBuildDocument:
         makeObj = ToQTextDocument(self._project)
         filtered = self._setupBuild(makeObj)
 
+        self._outline = True
+        self._count = True
+
         font = QFont()
         font.fromString(self._build.getStr("format.textFont"))
 
-        makeObj.setLinkHeadings(self._preview)
         makeObj.initDocument(font, theme)
         for i, tHandle in enumerate(self._queue):
             self._error = None
@@ -207,8 +199,6 @@ class NWBuildDocument:
         makeObj = ToHtml(self._project)
         filtered = self._setupBuild(makeObj)
 
-        makeObj.setPreview(self._preview)
-        makeObj.setLinkHeadings(self._preview)
         for i, tHandle in enumerate(self._queue):
             self._error = None
             if filtered.get(tHandle, (False, 0))[0]:
@@ -218,7 +208,7 @@ class NWBuildDocument:
 
         makeObj.appendFootnotes()
 
-        if not (self._build.getBool("html.preserveTabs") or self._preview):
+        if not self._build.getBool("html.preserveTabs"):
             makeObj.replaceTabs()
 
         self._error = None
diff --git a/novelwriter/core/tohtml.py b/novelwriter/core/tohtml.py
index f16cc515..33e59789 100644
--- a/novelwriter/core/tohtml.py
+++ b/novelwriter/core/tohtml.py
@@ -38,24 +38,6 @@ from novelwriter.types import FONT_STYLE, FONT_WEIGHTS
 
 logger = logging.getLogger(__name__)
 
-HTML4_TAGS = {
-    Tokenizer.FMT_B_B: "<b>",
-    Tokenizer.FMT_B_E: "</b>",
-    Tokenizer.FMT_I_B: "<i>",
-    Tokenizer.FMT_I_E: "</i>",
-    Tokenizer.FMT_D_B: "<span style='text-decoration: line-through;'>",
-    Tokenizer.FMT_D_E: "</span>",
-    Tokenizer.FMT_U_B: "<u>",
-    Tokenizer.FMT_U_E: "</u>",
-    Tokenizer.FMT_M_B: "<mark>",
-    Tokenizer.FMT_M_E: "</mark>",
-    Tokenizer.FMT_SUP_B: "<sup>",
-    Tokenizer.FMT_SUP_E: "</sup>",
-    Tokenizer.FMT_SUB_B: "<sub>",
-    Tokenizer.FMT_SUB_E: "</sub>",
-    Tokenizer.FMT_STRIP: "",
-}
-
 HTML5_TAGS = {
     Tokenizer.FMT_B_B: "<strong>",
     Tokenizer.FMT_B_E: "</strong>",
@@ -82,14 +64,9 @@ class ToHtml(Tokenizer):
     also used by the Document Viewer, and Manuscript Build Preview.
     """
 
-    M_PREVIEW = 0  # Tweak output for the DocViewer
-    M_EXPORT  = 1  # Tweak output for saving to HTML or printing
-    M_EBOOK   = 2  # Tweak output for converting to epub
-
     def __init__(self, project: NWProject) -> None:
         super().__init__(project)
 
-        self._genMode = self.M_EXPORT
         self._cssStyles = True
         self._fullHTML: list[str] = []
 
@@ -112,11 +89,6 @@ class ToHtml(Tokenizer):
     #  Setters
     ##
 
-    def setPreview(self, state: bool) -> None:
-        """Set to preview generator mode."""
-        self._genMode = self.M_PREVIEW if state else self.M_EXPORT
-        return
-
     def setStyles(self, cssStyles: bool) -> None:
         """Enable or disable CSS styling. Some elements may still have
         class tags.
@@ -157,8 +129,7 @@ class ToHtml(Tokenizer):
         """Convert the list of text tokens into an HTML document."""
         self._result = ""
 
-        hTags = HTML4_TAGS if self._genMode == self.M_PREVIEW else HTML5_TAGS
-        if self._isNovel and self._genMode != self.M_PREVIEW:
+        if self._isNovel:
             # For story files, we bump the titles one level up
             h1Cl = " class='title'"
             h1 = "h1"
@@ -240,7 +211,7 @@ class ToHtml(Tokenizer):
 
             # Process Text Type
             if tType == self.T_TEXT:
-                lines.append(f"<p{hStyle}>{self._formatText(tText, tFormat, hTags)}</p>\n")
+                lines.append(f"<p{hStyle}>{self._formatText(tText, tFormat)}</p>\n")
 
             elif tType == self.T_TITLE:
                 tHead = tText.replace(nwHeadFmt.BR, "<br>")
@@ -269,13 +240,13 @@ class ToHtml(Tokenizer):
                 lines.append(f"<p class='skip'{hStyle}>&nbsp;</p>\n")
 
             elif tType == self.T_SYNOPSIS and self._doSynopsis:
-                lines.append(self._formatSynopsis(self._formatText(tText, tFormat, hTags), True))
+                lines.append(self._formatSynopsis(self._formatText(tText, tFormat), True))
 
             elif tType == self.T_SHORT and self._doSynopsis:
-                lines.append(self._formatSynopsis(self._formatText(tText, tFormat, hTags), False))
+                lines.append(self._formatSynopsis(self._formatText(tText, tFormat), False))
 
             elif tType == self.T_COMMENT and self._doComments:
-                lines.append(self._formatComments(self._formatText(tText, tFormat, hTags)))
+                lines.append(self._formatComments(self._formatText(tText, tFormat)))
 
             elif tType == self.T_KEYWORD and self._doKeywords:
                 tag, text = self._formatKeywords(tText)
@@ -291,7 +262,6 @@ class ToHtml(Tokenizer):
     def appendFootnotes(self) -> None:
         """Append the footnotes in the buffer."""
         if self._usedNotes:
-            tags = HTML4_TAGS if self._genMode == self.M_PREVIEW else HTML5_TAGS
             footnotes = self._localLookup("Footnotes")
 
             lines = []
@@ -299,7 +269,7 @@ class ToHtml(Tokenizer):
             lines.append("<ol>\n")
             for key, index in self._usedNotes.items():
                 if content := self._footnotes.get(key):
-                    text = self._formatText(*content, tags)
+                    text = self._formatText(*content)
                     lines.append(f"<li id='footnote_{index}'><p>{text}</p></li>\n")
             lines.append("</ol>\n")
 
@@ -468,7 +438,7 @@ class ToHtml(Tokenizer):
     #  Internal Functions
     ##
 
-    def _formatText(self, text: str, tFmt: T_Formats, tags: dict[int, str]) -> str:
+    def _formatText(self, text: str, tFmt: T_Formats) -> str:
         """Apply formatting tags to text."""
         temp = text
         for pos, fmt, data in reversed(tFmt):
@@ -481,7 +451,7 @@ class ToHtml(Tokenizer):
                 else:
                     html = "<sup>ERR</sup>"
             else:
-                html = tags.get(fmt, "ERR")
+                html = HTML5_TAGS.get(fmt, "ERR")
             temp = f"{temp[:pos]}{html}{temp[pos:]}"
         temp = temp.replace("\n", "<br>")
         return stripEscape(temp)
@@ -492,18 +462,12 @@ class ToHtml(Tokenizer):
             sSynop = self._localLookup("Synopsis")
         else:
             sSynop = self._localLookup("Short Description")
-        if self._genMode == self.M_PREVIEW:
-            return f"<p class='note'><span class='modifier'>{sSynop}:</span> {text}</p>\n"
-        else:
-            return f"<p class='synopsis'><strong>{sSynop}:</strong> {text}</p>\n"
+        return f"<p class='synopsis'><strong>{sSynop}:</strong> {text}</p>\n"
 
     def _formatComments(self, text: str) -> str:
         """Apply HTML formatting to comments."""
-        if self._genMode == self.M_PREVIEW:
-            return f"<p class='comment'>{text}</p>\n"
-        else:
-            sComm = self._localLookup("Comment")
-            return f"<p class='comment'><strong>{sComm}:</strong> {text}</p>\n"
+        sComm = self._localLookup("Comment")
+        return f"<p class='comment'><strong>{sComm}:</strong> {text}</p>\n"
 
     def _formatKeywords(self, text: str) -> tuple[str, str]:
         """Apply HTML formatting to keywords."""
@@ -519,13 +483,8 @@ class ToHtml(Tokenizer):
                 if two:
                     result += f" | <span class='optional'>{two}</a>"
             else:
-                if self._genMode == self.M_PREVIEW:
-                    result += ", ".join(
-                        f"<a class='tag' href='#{bits[0][1:]}={t}'>{t}</a>" for t in bits[1:]
-                    )
-                else:
-                    result += ", ".join(
-                        f"<a class='tag' href='#tag_{t}'>{t}</a>" for t in bits[1:]
-                    )
+                result += ", ".join(
+                    f"<a class='tag' href='#tag_{t}'>{t}</a>" for t in bits[1:]
+                )
 
         return bits[0][1:], result
diff --git a/novelwriter/tools/manuscript.py b/novelwriter/tools/manuscript.py
index 84c043dc..d7da4cb0 100644
--- a/novelwriter/tools/manuscript.py
+++ b/novelwriter/tools/manuscript.py
@@ -23,10 +23,8 @@ along with this program. If not, see <https://www.gnu.org/licenses/>.
 """
 from __future__ import annotations
 
-import json
 import logging
 
-from datetime import datetime
 from time import time
 from typing import TYPE_CHECKING
 
@@ -41,12 +39,11 @@ from PyQt5.QtWidgets import (
 )
 
 from novelwriter import CONFIG, SHARED
-from novelwriter.common import checkInt, fuzzyTime
+from novelwriter.common import fuzzyTime
 from novelwriter.core.buildsettings import BuildCollection, BuildSettings
 from novelwriter.core.docbuild import NWBuildDocument
 from novelwriter.core.tokenizer import HeadingFormatter
 from novelwriter.core.toqdoc import TextDocumentTheme, ToQTextDocument
-from novelwriter.error import logException
 from novelwriter.extensions.circularprogress import NProgressCircle
 from novelwriter.extensions.modified import NIconToggleButton, NIconToolButton, NToolDialog
 from novelwriter.gui.theme import STYLES_FLAT_TABS, STYLES_MIN_TOOLBUTTON
@@ -250,20 +247,6 @@ class GuiManuscript(NToolDialog):
         if selected in self._buildMap:
             self.buildList.setCurrentItem(self._buildMap[selected])
 
-        # logger.debug("Loading build cache")
-        # cache = CONFIG.dataPath("cache") / f"build_{SHARED.project.data.uuid}.json"
-        # if cache.is_file():
-        #     try:
-        #         with open(cache, mode="r", encoding="utf-8") as fObj:
-        #             data = json.load(fObj)
-        #         build = self._builds.getBuild(data.get("uuid", ""))
-        #         if isinstance(build, BuildSettings):
-        #             self._updatePreview(data, build)
-        #     except Exception:
-        #         logger.error("Failed to load build cache")
-        #         logException()
-        #         return
-
         return
 
     ##
@@ -342,7 +325,6 @@ class GuiManuscript(NToolDialog):
         SHARED.saveDocument()
 
         docBuild = NWBuildDocument(SHARED.project, build)
-        docBuild.setPreviewMode(True)
         docBuild.queueAll()
 
         theme = TextDocumentTheme()
@@ -364,23 +346,17 @@ class GuiManuscript(NToolDialog):
 
         buildObj = docBuild.lastBuild
         assert isinstance(buildObj, ToQTextDocument)
-        data = {
-            "uuid": build.buildID,
-            "time": int(time()),
-            "stats": buildObj.textStats,
-            "outline": buildObj.textOutline,
-        }
-        self._updatePreview(data, build, buildObj.document)
 
-        logger.debug("Saving build cache")
-        cache = CONFIG.dataPath("cache") / f"build_{SHARED.project.data.uuid}.json"
-        try:
-            with open(cache, mode="w+", encoding="utf-8") as outFile:
-                outFile.write(json.dumps(data, indent=2))
-        except Exception:
-            logger.error("Failed to save build cache")
-            logException()
-            return
+        font = QFont()
+        font.fromString(build.getStr("format.textFont"))
+
+        self.docPreview.setTextFont(font)
+        self.docPreview.setContent(buildObj.document)
+        self.docPreview.setBuildName(build.name)
+        self.docPreview.setJustify(build.getBool("format.justifyText"))
+
+        self.docStats.updateStats(buildObj.textStats)
+        self.buildOutline.updateOutline(buildObj.textOutline)
 
         return
 
@@ -409,18 +385,6 @@ class GuiManuscript(NToolDialog):
     #  Internal Functions
     ##
 
-    def _updatePreview(self, data: dict, build: BuildSettings, document: QTextDocument) -> None:
-        """Update the preview widget and set relevant values."""
-        font = QFont()
-        font.fromString(build.getStr("format.textFont"))
-        self.docPreview.setTextFont(font)
-        self.docPreview.setContent(data, document)
-        self.docPreview.setBuildName(build.name)
-        self.docPreview.setJustify(build.getBool("format.justifyText"))
-        self.docStats.updateStats(data.get("stats", {}))
-        self.buildOutline.updateOutline(data.get("outline", {}))
-        return
-
     def _getSelectedBuild(self) -> BuildSettings | None:
         """Get the currently selected build. If none are selected,
         automatically select the first one.
@@ -854,23 +818,19 @@ class _PreviewWidget(QTextBrowser):
         QApplication.processEvents()
         return
 
-    def setContent(self, data: dict, doc: QTextDocument) -> None:
+    def setContent(self, document: QTextDocument) -> None:
         """Set the content of the preview widget."""
         QApplication.setOverrideCursor(QCursor(Qt.CursorShape.WaitCursor))
 
         self.buildProgress.setCentreText(self.tr("Processing ..."))
         QApplication.processEvents()
 
-        doc.setDocumentMargin(CONFIG.getTextMargin())
-        self.setDocument(doc)
+        document.setDocumentMargin(CONFIG.getTextMargin())
+        self.setDocument(document)
 
-        self._docTime = checkInt(data.get("time"), 0)
+        self._docTime = int(time())
         self._updateBuildAge()
 
-        # Since we change the content while it may still be rendering, we mark
-        # the document as dirty again to make sure it's re-rendered properly.
-        # self.document().markContentsDirty(0, self.document().characterCount())
-
         self.buildProgress.setCentreText(self.tr("Done"))
         QApplication.restoreOverrideCursor()
         QApplication.processEvents()
@@ -915,17 +875,14 @@ class _PreviewWidget(QTextBrowser):
     @pyqtSlot()
     def _updateBuildAge(self) -> None:
         """Update the build time and the fuzzy age."""
-        if self._docTime > 0:
-            strBuildTime = "%s (%s)" % (
-                CONFIG.localDateTime(datetime.fromtimestamp(self._docTime)),
-                fuzzyTime(int(time()) - self._docTime)
-            )
+        if self._buildName and self._docTime > 0:
+            self.ageLabel.setText("<b>{0}</b><br>{1}: {2}".format(
+                self._buildName,
+                self.tr("Built"),
+                fuzzyTime(int(time()) - self._docTime),
+            ))
         else:
-            strBuildTime = self.tr("Unknown")
-        text = "{0}: {1}".format(self.tr("Built"), strBuildTime)
-        if self._buildName:
-            text = "<b>{0}</b><br>{1}".format(self._buildName, text)
-        self.ageLabel.setText(text)
+            self.ageLabel.setText("<b>{0}</b>".format(self.tr("No Preview")))
         return
 
     @pyqtSlot()
diff --git a/tests/test_core/test_core_tohtml.py b/tests/test_core/test_core_tohtml.py
index c02e833c..d8abf99b 100644
--- a/tests/test_core/test_core_tohtml.py
+++ b/tests/test_core/test_core_tohtml.py
@@ -284,21 +284,6 @@ def testCoreToHtml_ConvertParagraphs(mockGUI):
         "</ol>\n"
     )
 
-    # Preview Mode
-    # ============
-
-    html.setPreview(True)
-
-    # Text (HTML4)
-    html._text = "Some **nested bold and _italic_ and ~~strikethrough~~ text** here\n"
-    html.tokenizeText()
-    html.doConvert()
-    assert html.result == (
-        "<p>Some <b>nested bold and <i>italic</i> and "
-        "<span style='text-decoration: line-through;'>strikethrough</span> "
-        "text</b> here</p>\n"
-    )
-
 
 @pytest.mark.core
 def testCoreToHtml_ConvertDirect(mockGUI):
@@ -682,29 +667,3 @@ def testCoreToHtml_Format(mockGUI):
         "<a class='tag' href='#tag_Bod'>Bod</a>, "
         "<a class='tag' href='#tag_Jane'>Jane</a>"
     )
-
-    # Preview Mode
-    # ============
-
-    html.setPreview(True)
-
-    assert html._formatSynopsis("synopsis text", True) == (
-        "<p class='note'><span class='modifier'>Synopsis:</span> synopsis text</p>\n"
-    )
-    assert html._formatSynopsis("short text", False) == (
-        "<p class='note'><span class='modifier'>Short Description:</span> short text</p>\n"
-    )
-    assert html._formatComments("comment text") == (
-        "<p class='comment'>comment text</p>\n"
-    )
-
-    assert html._formatKeywords("") == ("", "")
-    assert html._formatKeywords("tag: Jane") == (
-        "tag", "<span class='keyword'>Tag:</span> <a class='tag' name='tag_Jane'>Jane</a>"
-    )
-    assert html._formatKeywords("char: Bod, Jane") == (
-        "char",
-        "<span class='keyword'>Characters:</span> "
-        "<a class='tag' href='#char=Bod'>Bod</a>, "
-        "<a class='tag' href='#char=Jane'>Jane</a>"
-    )