diff --git a/src/lua.rs b/src/lua.rs
index f78741c..149dce6 100644
--- a/src/lua.rs
+++ b/src/lua.rs
@@ -2,15 +2,15 @@ use std::{cell::RefCell, rc::Rc};
 
 use mlua::{DeserializeOptions, Function, Lua, LuaSerdeExt, Value};
 
-pub fn try_eval(lua: &Lua, src: &str) -> mlua::Result<(String, String)> {
+pub fn try_eval(lua: &Lua, src: &str, fancy: bool) -> mlua::Result<(String, String)> {
     lua.scope(|s| {
         let output = Rc::new(RefCell::new(String::new()));
+        let tostring = lua.globals().get::<_, Function>("tostring")?;
+
+        let tostring_ = tostring.clone();
         let output_ = Rc::clone(&output);
-        let print = s.create_function(move |lua, x: Value| {
-            let s = lua
-                .globals()
-                .get::<_, Function>("tostring")?
-                .call::<_, String>(x)?;
+        let print = s.create_function(move |_lua, x: Value| {
+            let s = tostring_.call::<_, String>(x)?;
 
             let mut output = output_.borrow_mut();
             output.push_str(&s);
@@ -21,13 +21,19 @@ pub fn try_eval(lua: &Lua, src: &str) -> mlua::Result<(String, String)> {
 
         lua.globals().set("print", print)?;
 
-        let res = lua.from_value_with::<serde_json::Value>(
-            lua.load(src).eval()?,
-            DeserializeOptions::new()
-                .deny_unsupported_types(false)
-                .deny_recursive_tables(false),
-        )?;
-        let res = serde_json::to_string_pretty(&res).unwrap();
+        let eval_res = lua.load(src).eval()?;
+
+        let res = if fancy {
+            let val = lua.from_value_with::<serde_json::Value>(
+                eval_res,
+                DeserializeOptions::new()
+                    .deny_unsupported_types(false)
+                    .deny_recursive_tables(false),
+            )?;
+            serde_json::to_string_pretty(&val).unwrap()
+        } else {
+            tostring.call(eval_res)?
+        };
 
         Ok((output.take(), res))
     })
diff --git a/src/main.rs b/src/main.rs
index b693b25..f8a9a86 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,7 +1,7 @@
 use relm4::{gtk, RelmApp};
 use std::cell::RefCell;
-use tree_sitter_highlight::Highlighter;
 use tree_sitter::Language;
+use tree_sitter_highlight::Highlighter;
 
 mod hl;
 mod lua;
diff --git a/src/ui/entry.rs b/src/ui/entry.rs
index cbe167d..961c55b 100644
--- a/src/ui/entry.rs
+++ b/src/ui/entry.rs
@@ -13,6 +13,7 @@ pub enum Entry {
         src: TextBuffer,
         out: String,
         result: TextBuffer,
+        fancy: bool,
     },
 }
 
@@ -26,9 +27,11 @@ impl FactoryPrototype for Entry {
     fn position(&self, _key: &DynamicIndex) {}
 
     fn init_view(&self, _key: &DynamicIndex, _sender: relm4::Sender<Self::Msg>) -> Self::Widgets {
-        let (first_buf, second_buf) = match self {
-            Self::Error(e) => (e, None),
-            Self::LuaData { src, result, .. } => (src, Some(result)),
+        let (first_buf, second_buf, fancy) = match self {
+            Self::Error(e) => (e, None, false),
+            Self::LuaData {
+                src, result, fancy, ..
+            } => (src, Some(result), *fancy),
         };
 
         if let Some(json) = second_buf {
@@ -38,11 +41,13 @@ impl FactoryPrototype for Entry {
                 hl::LUA_HL_QUERY,
             );
 
-            highlight_text_buffer(
-                json,
-                unsafe { crate::tree_sitter_json() },
-                hl::JSON_HL_QUERY,
-            );
+            if fancy {
+                highlight_text_buffer(
+                    json,
+                    unsafe { crate::tree_sitter_json() },
+                    hl::JSON_HL_QUERY,
+                );
+            }
         } else {
             first_buf.apply_tag(
                 &first_buf.tag_table().lookup("error").unwrap(),
diff --git a/src/ui/mod.rs b/src/ui/mod.rs
index 6fd9a15..5eb8dc9 100644
--- a/src/ui/mod.rs
+++ b/src/ui/mod.rs
@@ -29,6 +29,7 @@ pub struct AppModel {
     loading: bool,
     history: Vec<String>,
     history_idx: usize,
+    fancy: bool,
 }
 
 impl AppModel {
@@ -70,6 +71,7 @@ impl AppModel {
             loading: false,
             history: Vec::new(),
             history_idx: 0,
+            fancy: true,
         })
     }
 }
@@ -89,7 +91,8 @@ impl AppUpdate for AppModel {
                     .text(&self.input.start_iter(), &self.input.end_iter(), false)
                     .to_string();
                 let lua = Arc::clone(&self.lua);
-                thread::spawn(move || match try_eval(&*lua.lock().unwrap(), &src) {
+                let fancy = self.fancy;
+                thread::spawn(move || match try_eval(&*lua.lock().unwrap(), &src, fancy) {
                     Ok((out, r)) => {
                         send!(
                             sender,
@@ -97,6 +100,7 @@ impl AppUpdate for AppModel {
                                 src,
                                 result: r,
                                 out,
+                                fancy,
                             })
                         );
                         send!(sender, AppMsg::ClearInput);
@@ -113,7 +117,12 @@ impl AppUpdate for AppModel {
                             .text(&e)
                             .build(),
                     ),
-                    StringEntry::LuaData { src, out, result } => Entry::LuaData {
+                    StringEntry::LuaData {
+                        src,
+                        out,
+                        result,
+                        fancy,
+                    } => Entry::LuaData {
                         src: gtk::TextBuffer::builder()
                             .tag_table(&self.input.tag_table())
                             .text(&src)
@@ -123,6 +132,7 @@ impl AppUpdate for AppModel {
                             .text(&result)
                             .build(),
                         out,
+                        fancy,
                     },
                 });
                 self.loading = false;
@@ -177,6 +187,7 @@ impl AppUpdate for AppModel {
                 }
                 send!(sender, AppMsg::InputUpdate);
             },
+            AppMsg::FancyToggle(s) => self.fancy = s,
         }
         true
     }
@@ -194,6 +205,7 @@ pub enum StringEntry {
         src: String,
         out: String,
         result: String,
+        fancy: bool,
     },
 }
 
@@ -204,6 +216,7 @@ pub enum AppMsg {
     ClearEntries,
     InputUpdate,
     History(HistoryChange),
+    FancyToggle(bool),
 }
 
 pub enum HistoryChange {
@@ -274,8 +287,18 @@ impl Widgets<AppModel, ()> for AppWidgets {
                     append = &gtk::Button {
                         set_label: "Clear List",
 
-                        connect_clicked(sender) => move |_| send!(sender, AppMsg::ClearEntries),
+                        connect_clicked(sender) => move |_| {
+                            send!(sender, AppMsg::ClearEntries);
+                        }
                     },
+
+                    append = &gtk::CheckButton {
+                        set_label: Some("Fancy"),
+                        set_active: true,
+                        connect_toggled(sender) => move |btn| {
+                            send!(sender, AppMsg::FancyToggle(btn.is_active()));
+                        }
+                    }
                 },
             },
         }