diff --git a/src/colormap.rs b/src/colormap.rs
index 2a774aa..27bcbae 100644
--- a/src/colormap.rs
+++ b/src/colormap.rs
@@ -7,71 +7,82 @@ const COLOR_TEXT: color::Fg<color::Cyan> = color::Fg(color::Cyan);
 const COLOR_NUMBERS: color::Fg<color::LightBlue> = color::Fg(color::LightBlue);
 
 pub fn map_u8_to_color(data: u8) -> String {
-    match data {
-        32..=47 => format!("{}{:02x}{}", COLOR_SYMBOLS, data, color::Fg(color::Reset)),
-        48..=57 => format!("{}{:02x}{}", COLOR_NUMBERS, data, color::Fg(color::Reset)),
-        58..=64 => format!("{}{:02x}{}", COLOR_SYMBOLS, data, color::Fg(color::Reset)),
-        65..=90 => format!("{}{:02x}{}", COLOR_TEXT, data, color::Fg(color::Reset)),
-        91..=96 => format!("{}{:02x}{}", COLOR_SYMBOLS, data, color::Fg(color::Reset)),
-        97..=122 => format!("{}{:02x}{}", COLOR_TEXT, data, color::Fg(color::Reset)),
-        123..=126 => format!("{}{:02x}{}", COLOR_SYMBOLS, data, color::Fg(color::Reset)),
-        _ => format!(
-            "{}{:02x}{}",
-            color::Fg(color::LightBlack),
-            data,
-            color::Fg(color::Reset)
-        ),
+    if super::isatty() {
+        match data {
+            32..=47 => format!("{}{:02x}{}", COLOR_SYMBOLS, data, color::Fg(color::Reset)),
+            48..=57 => format!("{}{:02x}{}", COLOR_NUMBERS, data, color::Fg(color::Reset)),
+            58..=64 => format!("{}{:02x}{}", COLOR_SYMBOLS, data, color::Fg(color::Reset)),
+            65..=90 => format!("{}{:02x}{}", COLOR_TEXT, data, color::Fg(color::Reset)),
+            91..=96 => format!("{}{:02x}{}", COLOR_SYMBOLS, data, color::Fg(color::Reset)),
+            97..=122 => format!("{}{:02x}{}", COLOR_TEXT, data, color::Fg(color::Reset)),
+            123..=126 => format!("{}{:02x}{}", COLOR_SYMBOLS, data, color::Fg(color::Reset)),
+            _ => format!(
+                "{}{:02x}{}",
+                color::Fg(color::LightBlack),
+                data,
+                color::Fg(color::Reset)
+            ),
+        }
+    } else {
+        format!("{:02x}", data)
     }
 }
 
 pub fn map_char_to_color(data: u8) -> String {
-    match data {
-        32..=47 => format!(
-            "{}{}{}",
-            COLOR_SYMBOLS,
-            (data as char),
-            color::Fg(color::Reset)
-        ),
-        48..=57 => format!(
-            "{}{}{}",
-            COLOR_NUMBERS,
-            (data as char),
-            color::Fg(color::Reset)
-        ),
-        58..=64 => format!(
-            "{}{}{}",
-            COLOR_SYMBOLS,
-            (data as char),
-            color::Fg(color::Reset)
-        ),
-        65..=90 => format!(
-            "{}{}{}",
-            COLOR_TEXT,
-            (data as char),
-            color::Fg(color::Reset)
-        ),
-        91..=96 => format!(
-            "{}{}{}",
-            COLOR_SYMBOLS,
-            (data as char),
-            color::Fg(color::Reset)
-        ),
-        97..=122 => format!(
-            "{}{}{}",
-            COLOR_TEXT,
-            (data as char),
-            color::Fg(color::Reset)
-        ),
-        123..=126 => format!(
-            "{}{}{}",
-            COLOR_SYMBOLS,
-            (data as char),
-            color::Fg(color::Reset)
-        ),
-        _ => format!(
-            "{}.{}",
-            color::Fg(color::LightBlack),
-            color::Fg(color::Reset)
-        ),
+    if super::isatty() {
+        match data {
+            32..=47 => format!(
+                "{}{}{}",
+                COLOR_SYMBOLS,
+                (data as char),
+                color::Fg(color::Reset)
+            ),
+            48..=57 => format!(
+                "{}{}{}",
+                COLOR_NUMBERS,
+                (data as char),
+                color::Fg(color::Reset)
+            ),
+            58..=64 => format!(
+                "{}{}{}",
+                COLOR_SYMBOLS,
+                (data as char),
+                color::Fg(color::Reset)
+            ),
+            65..=90 => format!(
+                "{}{}{}",
+                COLOR_TEXT,
+                (data as char),
+                color::Fg(color::Reset)
+            ),
+            91..=96 => format!(
+                "{}{}{}",
+                COLOR_SYMBOLS,
+                (data as char),
+                color::Fg(color::Reset)
+            ),
+            97..=122 => format!(
+                "{}{}{}",
+                COLOR_TEXT,
+                (data as char),
+                color::Fg(color::Reset)
+            ),
+            123..=126 => format!(
+                "{}{}{}",
+                COLOR_SYMBOLS,
+                (data as char),
+                color::Fg(color::Reset)
+            ),
+            _ => format!(
+                "{}.{}",
+                color::Fg(color::LightBlack),
+                color::Fg(color::Reset)
+            ),
+        }
+    } else {
+        match data {
+            32..=126 => format!("{}", (data as char)),
+            _ => ".".to_string(),
+        }
     }
 }
diff --git a/src/main.rs b/src/main.rs
index 2ad8b44..e497bde 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -20,6 +20,10 @@ struct Arguments {
     filename: Option<String>,
 }
 
+pub fn isatty() -> bool {
+    termion::is_tty(&File::create("/dev/stdout").expect("Could not open `stdout'"))
+}
+
 fn main() {
     let args = Arguments::parse();
 
diff --git a/src/tohex.rs b/src/tohex.rs
index 978eee9..6cfb166 100644
--- a/src/tohex.rs
+++ b/src/tohex.rs
@@ -1,5 +1,7 @@
 use std::io;
 
+use crate::isatty;
+
 use super::colormap::{map_char_to_color, map_u8_to_color};
 
 const GLOBAL_BUFFER_LENGTH: usize = 16;
@@ -16,7 +18,7 @@ fn dump_to_hex(bytes: &mut [u8]) -> String {
         })
         .collect();
     let padding_length = (8 - out_vec.len()) * 5;
-    format!("{:8}{}", out_vec.join(" "), " ".repeat(padding_length))
+    format!("{}{}", out_vec.join(" "), " ".repeat(padding_length))
 }
 
 fn dump_to_chr(bytes: &mut [u8]) -> String {
@@ -43,9 +45,10 @@ pub fn hexdump(mut reader: Box<dyn io::Read>, length: usize) {
                     break;
                 } else {
                     println!(
-                        "{:08x}: {:40}  {:10}",
+                        "{:08x}: {:40}{}{:10}",
                         offset,
                         dump_to_hex(&mut buf[0..to_read]),
+                        if isatty() { "  ".to_string() } else { " ".to_string() },
                         dump_to_chr(&mut buf[0..to_read])
                     );
                     offset += GLOBAL_BUFFER_LENGTH;