diff --git a/src/wud/parse_mod.py b/src/wud/parse_mod.py
new file mode 100644
index 0000000..33e0433
--- /dev/null
+++ b/src/wud/parse_mod.py
@@ -0,0 +1,100 @@
+import inspect
+from dataclasses import dataclass, field
+import typing
+
+
+@dataclass
+class Func:
+    name: str
+    desc: str
+    signature: inspect.Signature
+
+    def __str__(self):
+        return f"{self.name}{self.signature}\n\t{self.desc}"
+
+    @property
+    def icon(self):
+        return "F"
+
+
+@dataclass
+class Class:
+    name: str
+    desc: str
+    signature: inspect.Signature
+
+    def __str__(self):
+        return f"{self.name}{self.signature}\n\t{self.desc}"
+
+    @property
+    def icon(self):
+        return "C"
+
+
+@dataclass
+class Datum:
+    name: str
+    desc: str
+    value: typing.Any
+    type_name: str
+
+    def __str__(self):
+        return f"{self.name} = {self.value} ({self.type_name})\n\t{self.desc}"
+
+    @property
+    def icon(self):
+        return "G"
+
+
+@dataclass
+class Mod:
+    name: str
+    desc: str
+    functions: list[Func] = field(default_factory=list)
+    classes: list[Class] = field(default_factory=list)
+    data: list[Datum] = field(default_factory=list)
+
+    @property
+    def icon(self):
+        return "M"
+
+
+def parse_function(func):
+    try:
+        signature = inspect.signature(func)
+    except ValueError:
+        signature = "..."
+    return Func(name=func.__name__, desc=func.__doc__, signature=signature)
+
+
+def parse_class(cls):
+    try:
+        signature = inspect.signature(cls)
+    except ValueError:
+        signature = "..."
+    return Class(name=cls.__name__, desc=cls.__doc__, signature=signature)
+
+
+def parse_module(mod):
+    info = Mod(mod.__name__, mod.__doc__)
+
+    for name, member in inspect.getmembers(mod):
+        if inspect.isclass(member):
+            info.classes.append(parse_class(member))
+        elif inspect.isroutine(member):
+            info.functions.append(parse_function(member))
+        elif not name.startswith("__"):
+            info.data.append(Datum(name, member.__doc__, member, type(member).__name__))
+
+    return info
+
+
+if __name__ == "__main__":
+    import math
+
+    parsed = parse_module(math)
+    for f in parsed["functions"]:
+        print(f)
+
+    for d in parsed["data"]:
+        print(d)
diff --git a/src/wud/sidebar.tcss b/src/wud/sidebar.tcss
new file mode 100644
index 0000000..132b25b
--- /dev/null
+++ b/src/wud/sidebar.tcss
@@ -0,0 +1,7 @@
+#sidebar {
+    dock: left;
+    width: 20;
+    height: 100%;
+    color: #0f2b41;
+    background: dodgerblue;
+}
diff --git a/src/wud/tui.py b/src/wud/tui.py
new file mode 100644
index 0000000..f2f12d0
--- /dev/null
+++ b/src/wud/tui.py
@@ -0,0 +1,86 @@
+import importlib
+from textual.app import App, ComposeResult
+from textual.reactive import reactive
+from textual.widgets import (
+    Static,
+    Header,
+    ListView,
+    ListItem,
+    Label,
+    MarkdownViewer,
+    Markdown,
+)
+from .parse_mod import parse_module
+
+TEXT = """\
+Docking a widget removes it from the layout and fixes its position, aligned to either the top, right, bottom, or left edges of a container.
+
+Docked widgets will not scroll out of view, making them ideal for sticky headers, footers, and sidebars.
+
+"""
+
+
+class MemberListView(ListView):
+    def __init__(self, mod_list):
+        super().__init__(id="sidebar")
+        self.mod_list = mod_list
+
+    def compose(self):
+        for f in self.mod_list:
+            yield ListItem(Label(f"{f.name:<16}{f.icon}"))
+
+
+def func2md(func):
+    return f"""## {func.name}{func.signature}
+    {func.desc}
+    """
+
+
+def mod2md(mod):
+    func_md = "\n\n".join(func2md(f) for f in mod.functions)
+    return f"""# {mod.name}
+    {mod.desc}
+
+    {func_md}
+    """
+
+
+# class DocView(MarkdownViewer):
+#
+#     def __init__(self, mod):
+#         super().__init__(markdown=mod)
+#
+#     def watch_md(self):
+#         self.markdown = self.md
+#
+
+
+class WudTui(App):
+    CSS_PATH = "sidebar.tcss"
+
+    def __init__(self, modname):
+        super().__init__()
+        _mod = importlib.import_module(modname)
+        self.mod = parse_module(_mod)
+        self.mod_list = [self.mod] + self.mod.functions + self.mod.data
+
+    def compose(self) -> ComposeResult:
+        yield Header()
+        yield MemberListView(self.mod_list)
+        yield Markdown(mod2md(self.mod), id="docview")
+
+    def on_mount(self):
+        self.title = "wud"
+        self.sub_title = self.mod.name
+
+    def on_list_view_highlighted(self, _):
+        lv = self.query_one("#sidebar", MemberListView)
+        md = self.query_one("#docview", Markdown)
+        md.update(markdown=f"{self.mod_list[lv.index]}")
+
+
+if __name__ == "__main__":
+    import sys
+
+    app = WudTui(sys.argv[1])
+    app.run()