diff --git a/redstring/parser.py b/redstring/parser.py
index 87c9ae6..1ccbfed 100644
--- a/redstring/parser.py
+++ b/redstring/parser.py
@@ -63,13 +63,7 @@ class TagOptions:
     _PRIVATE_KEY = 'private'
 
     def __init__(self, **kwargs) -> None:
-        self.options = OrderedDict(**kwargs)
-        # Tag value is a hyperlink
-        self.hyperlink: bool = kwargs.get('hyperlink', False)
-        # Tag value contains redstring interlinks
-        self.interlink: bool = kwargs.get('interlink', False)
-        # Hide the tag from unauthenticated viewers
-        self.private: bool = kwargs.get('private', False)
+        self.options: dict = OrderedDict(**kwargs)
 
     def to_json(self):
         return self.options
diff --git a/redstring/server.py b/redstring/server.py
index 0dd0d4a..116a6de 100644
--- a/redstring/server.py
+++ b/redstring/server.py
@@ -10,12 +10,13 @@ from flask import (
     Flask,
     redirect,
     render_template,
+    request,
     safe_join,
     url_for,
 )
 
 from redstring.library import generate_index_document, generate_default_document
-from redstring.parser import load, dump
+from redstring.parser import load, dump, DocumentTab, DocumentTag, TagOptions, DocumentSubtag
 
 
 CONFIG_ENVVAR = 'REDSTRING_CONFIG'
@@ -54,6 +55,47 @@ def new():
     return redirect(url_for('document', document_id=document_id))
 
 
+@app.route('/edit/<document_id>', methods=['GET', 'POST'])
+def edit(document_id):
+    # Load the document to edit
+    doc_path = safe_join(current_app.config['root'], f'{document_id}.json')
+    if not os.path.isfile(doc_path):
+        return abort(404)
+    with open(doc_path) as f:
+        doc = load(f)
+
+    # Check for structural change requests
+    if add := request.args.get('add'):
+        if add == 'tab':
+            new_tab = DocumentTab('newtab', [])
+            doc.tabs.append(new_tab)
+            with open(doc_path, 'w') as f:
+                dump(doc, f)
+            return redirect(url_for('edit', document_id=document_id))
+        elif add == 'tag':
+            if tab_name := request.args.get('tab'):
+                tab = doc.get_tab(tab_name)
+                new_tag = DocumentTag('tag', '', TagOptions(private=True))
+                tab.tags.append(new_tag)
+                with open(doc_path, 'w') as f:
+                    dump(doc, f)
+                return redirect(url_for('edit', document_id=document_id))
+            return abort(400)
+        elif add == 'subtag':
+            if tag_name := request.args.get('tag'):
+                tag = doc.get_tag(tag_name)
+                new_subtag = DocumentSubtag('subtag', '', TagOptions(private=True))
+                tag.subtags.append(new_subtag)
+                with open(doc_path, 'w') as f:
+                    dump(doc, f)
+                return redirect(url_for('edit', document_id=document_id))
+            return abort(400)
+
+    # Otherwise, return the editor page
+    else:
+        return render_template('edit.jinja', document=doc, index=False)
+
+
 def main():
     parser = argparse.ArgumentParser(description="Run the redstring server.")
     parser.add_argument("--config", help="Config file path.")
diff --git a/redstring/templates/base.jinja b/redstring/templates/base.jinja
index b2729a5..c55243b 100644
--- a/redstring/templates/base.jinja
+++ b/redstring/templates/base.jinja
@@ -101,12 +101,20 @@
 	table.page-table td:nth-child(2) {
 		white-space: pre-wrap;
 	}
-	table.page-table td:nth-child(2) a {
+	table.page-table a {
 		color: #8af;
 	}
-	table.page-table td:nth-child(2) a:visited {
+	table.page-table a:visited {
 		color: #88f;
 	}
+
+	/* Edit page styling */
+	input.tag-name {
+	}
+	textarea.tag-value {
+		resize: none;
+		width: 100%;
+	}
 </style>
 {% block page_scripts %}{% endblock %}
 </head>
diff --git a/redstring/templates/edit.jinja b/redstring/templates/edit.jinja
new file mode 100644
index 0000000..4044693
--- /dev/null
+++ b/redstring/templates/edit.jinja
@@ -0,0 +1,135 @@
+{% extends 'base.jinja' %}
+
+{% set page_title = document.get_tag_value('title', document.get_tag('id').value)  -%}
+{% set page_summary = document.get_tag_value('summary', '') %}
+
+{% block page_scripts %}
+<script>
+var newTabCounter = 0;
+
+function selectTab(name) {
+
+	let tab = document.getElementById("tab-" + name);
+	if (tab)
+	{
+		// Unselect all tabs and content
+		Array.from(document.getElementsByClassName("tab-content"))
+			.forEach(e => e.classList.remove("tab-down"));
+		Array.from(document.getElementsByClassName("tab-page"))
+			.forEach(e => e.classList.remove("tab-page-selected"));
+		// Select the new tab and content
+		tab.classList.add("tab-down");
+		let content = document.getElementById(name + "-page");
+		content.classList.add("tab-page-selected");
+	}
+}
+
+function addTab() {
+	let newTabName = "newtab" + ++newTabCounter;
+	let tabsDiv = document.querySelector("#tabs");
+	let wrapper = document.querySelector("#wrapper");
+	let newTabTab = document.querySelector("#newtab");
+
+	// Add tab div
+	let newTab = document.createElement("div");
+	newTab.id = "tab-" + newTabName;
+	newTab.classList = "tab tab-content";
+	newTab.contenteditable = true;
+	newTab.innerText = newTabName;
+	newTab.onclick = function() { selectTab(newTabName); };
+	tabsDiv.insertBefore(newTab, newTabTab);
+
+	// Add page div
+	let newPage = document.createElement("div");
+	newPage.id = newTabName + "-page";
+	newPage.classList = "tag-page";
+	let newPageTable = document.createElement("table");
+	newPageTable.id = newTabName + "-page-table";
+	newPageTable.classList = "page-table";
+	wrapper.appendChild(newPage);
+}
+
+window.onload = function () {
+	// Respect fragment as a tab selector shortcut
+	if (window.location.hash) {
+		selectTab(window.location.hash.substring(1));
+	}
+}
+</script>
+{% endblock page_scripts %}
+
+{% macro make_content_tab(tab, selected) -%}
+<div id="tab-{{ tab.name }}" class="tab tab-content{% if selected %} tab-down{% endif %}{% if index %} tab-right{% endif %}" onclick="javascript:selectTab('{{ tab.name }}')">{{ tab.name }}</div>
+{%- endmacro %}
+
+{% macro make_tab_page(tab, selected) %}
+<div id="{{ tab.name }}-page" class="tab-page{% if selected %} tab-page-selected{% endif %}">
+<table id="{{ tab.name }}-page-table" class="page-table">
+
+<tr>
+<td><i>tab name</i></td>
+<td><div contenteditable>{{ tab.name }}</div></td>
+</tr>
+
+{% for tag in tab.tags %}
+<tr>
+{%- if tag.name == 'id' -%}
+<td>{{ tag.name }}</td>
+{%- else -%}
+<td><div contenteditable>{{ tag.name }}</div></td>
+{% endif %}
+<td><div contenteditable>{{ tag.value }}</div></td>
+</tr>
+
+<tr>
+<td>
+{%- if tag.subtags -%}
+&#9474;
+{%- else -%}
+<a href="/edit/{{ document.get_tag('id').value }}?add=subtag&tag={{ tag.name }}">&#9492; +</a>
+{%- endif -%}</td>
+<td></td>
+</tr>
+
+{% for subtag in tag.subtags %}
+<tr>
+<td><div contenteditable>{{ subtag.name }}</div></td>
+<td><div contenteditable>{{ subtag.value }}</div></td>
+</tr>
+
+<tr>
+<td>
+{%- if not loop.last -%}
+&#9474;
+{%- else -%}
+<a href="/edit/{{ document.get_tag('id').value }}?add=subtag&tag={{ tag.name }}">&#9492; +</a>
+{%- endif -%}
+</td>
+<td></td>
+</tr>
+{% endfor %}
+
+{% endfor %}
+
+<tr>
+<td><a href="/edit/{{ document.get_tag('id').value }}?add=tag&tab={{ tab.name }}">Add tag</td>
+<td></td>
+</tr>
+
+</table>
+</div>
+{% endmacro %}
+
+{# TODO: tab.priority support #}
+{% block page_content %}
+<div id="tabs">
+{%- for tab in document -%}
+{{ make_content_tab(tab, loop.first) }}
+{%- endfor -%}
+<div id="newtab" class="tab"><a href="/edit/{{ document.get_tag('id').value }}?add=tab">+</div>
+<div id="index" class="tab tab-right"><a href="/index/">index</a></div>
+</div>
+{% for tab in document -%}
+{{ make_tab_page(tab, loop.first) }}
+{%- endfor -%}
+{% endblock page_content %}
\ No newline at end of file