diff --git a/src/endiannessbox.cpp b/src/endiannessbox.cpp
new file mode 100644
--- /dev/null
+++ b/src/endiannessbox.cpp
@@ -0,0 +1,50 @@
+/*
+  Copyright © 2016 Hasan Yavuz Özderya
+
+  This file is part of serialplot.
+
+  serialplot is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  serialplot is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with serialplot.  If not, see .
+*/
+
+#include "endiannessbox.h"
+#include "ui_endiannessbox.h"
+
+EndiannessBox::EndiannessBox(QWidget *parent) :
+    QGroupBox(parent),
+    ui(new Ui::EndiannessBox)
+{
+    ui->setupUi(this);
+
+    connect(ui->rbLittleE, &QRadioButton::toggled, [this](bool checked)
+            {
+                emit selectionChanged(currentSelection());
+            });
+}
+
+EndiannessBox::~EndiannessBox()
+{
+    delete ui;
+}
+
+Endianness EndiannessBox::currentSelection()
+{
+    if (ui->rbLittleE->isChecked())
+    {
+        return LittleEndian;
+    }
+    else
+    {
+        return BigEndian;
+    }
+}
diff --git a/src/endiannessbox.h b/src/endiannessbox.h
new file mode 100644
--- /dev/null
+++ b/src/endiannessbox.h
@@ -0,0 +1,53 @@
+/*
+  Copyright © 2016 Hasan Yavuz Özderya
+
+  This file is part of serialplot.
+
+  serialplot is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  serialplot is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with serialplot.  If not, see .
+*/
+
+#ifndef ENDIANNESSBOX_H
+#define ENDIANNESSBOX_H
+
+#include 
+
+namespace Ui {
+class EndiannessBox;
+}
+
+enum Endianness
+{
+    LittleEndian,
+    BigEndian
+};
+
+class EndiannessBox : public QGroupBox
+{
+    Q_OBJECT
+
+public:
+    explicit EndiannessBox(QWidget *parent = 0);
+    ~EndiannessBox();
+
+    Endianness currentSelection(); ///< currently selected endianness
+
+signals:
+    /// Signaled when endianness selection is changed
+    void selectionChanged(Endianness endianness);
+
+private:
+    Ui::EndiannessBox *ui;
+};
+
+#endif // ENDIANNESSBOX_H
diff --git a/src/endiannessbox.ui b/src/endiannessbox.ui
new file mode 100644
--- /dev/null
+++ b/src/endiannessbox.ui
@@ -0,0 +1,47 @@
+
+
+ EndiannessBox
+ 
+  
+   
+    0
+    0
+    131
+    86
+   
+  
+  
+   GroupBox
+  
+  
+   Byte Order:
+  
+  
+   - 
+    
+     
+      least significant byte first
+     
+     
+      Little Endian
+     
+     
+      true
+     
+    
+   
 
+   - 
+    
+     
+      most significant byte first
+     
+     
+      Big Endian
+     
+    
+   
 
+  
+ 
+ 
+ 
+
diff --git a/src/numberformatbox.cpp b/src/numberformatbox.cpp
new file mode 100644
--- /dev/null
+++ b/src/numberformatbox.cpp
@@ -0,0 +1,56 @@
+/*
+  Copyright © 2016 Hasan Yavuz Özderya
+
+  This file is part of serialplot.
+
+  serialplot is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  serialplot is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with serialplot.  If not, see .
+*/
+
+#include "numberformatbox.h"
+#include "ui_numberformatbox.h"
+
+NumberFormatBox::NumberFormatBox(QWidget *parent) :
+    QGroupBox(parent),
+    ui(new Ui::NumberFormatBox)
+{
+    ui->setupUi(this);
+
+    // setup buttons
+    buttonGroup.addButton(ui->rbUint8,  NumberFormat_uint8);
+    buttonGroup.addButton(ui->rbUint16, NumberFormat_uint16);
+    buttonGroup.addButton(ui->rbUint32, NumberFormat_uint32);
+    buttonGroup.addButton(ui->rbInt8,   NumberFormat_int8);
+    buttonGroup.addButton(ui->rbInt16,  NumberFormat_int16);
+    buttonGroup.addButton(ui->rbInt32,  NumberFormat_int32);
+    buttonGroup.addButton(ui->rbFloat,  NumberFormat_float);
+
+    QObject::connect(
+        &buttonGroup, SIGNAL(buttonToggled(int, bool)),
+        this, SLOT(onButtonToggled(int, bool)));
+}
+
+NumberFormatBox::~NumberFormatBox()
+{
+    delete ui;
+}
+
+void NumberFormatBox::onButtonToggled(int numberFormatId, bool checked)
+{
+    if (checked) emit selectionChanged((NumberFormat) numberFormatId);
+}
+
+NumberFormat NumberFormatBox::currentSelection()
+{
+    return (NumberFormat) buttonGroup.checkedId();
+}
diff --git a/src/numberformatbox.h b/src/numberformatbox.h
new file mode 100644
--- /dev/null
+++ b/src/numberformatbox.h
@@ -0,0 +1,63 @@
+/*
+  Copyright © 2016 Hasan Yavuz Özderya
+
+  This file is part of serialplot.
+
+  serialplot is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  serialplot is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with serialplot.  If not, see .
+*/
+
+#ifndef NUMBERFORMATBOX_H
+#define NUMBERFORMATBOX_H
+
+#include 
+#include 
+
+namespace Ui {
+class NumberFormatBox;
+}
+
+enum NumberFormat
+{
+    NumberFormat_uint8,
+    NumberFormat_uint16,
+    NumberFormat_uint32,
+    NumberFormat_int8,
+    NumberFormat_int16,
+    NumberFormat_int32,
+    NumberFormat_float,
+};
+
+class NumberFormatBox : public QGroupBox
+{
+    Q_OBJECT
+
+public:
+    explicit NumberFormatBox(QWidget *parent = 0);
+    ~NumberFormatBox();
+
+    NumberFormat currentSelection(); ///< returns the currently selected number format
+
+signals:
+    /// Signaled when number format selection is changed
+    void selectionChanged(NumberFormat numberFormat);
+
+private:
+    Ui::NumberFormatBox *ui;
+    QButtonGroup buttonGroup;
+
+private slots:
+    void onButtonToggled(int numberFormatId, bool checked);
+};
+
+#endif // NUMBERFORMATBOX_H
diff --git a/src/numberformatbox.ui b/src/numberformatbox.ui
new file mode 100644
--- /dev/null
+++ b/src/numberformatbox.ui
@@ -0,0 +1,97 @@
+
+
+ NumberFormatBox
+ 
+  
+   
+    0
+    0
+    158
+    142
+   
+  
+  
+   GroupBox
+  
+  
+   Number Format:
+  
+  
+   - 
+    
+     
+      unsigned 1 byte integer
+     
+     
+      uint8
+     
+     
+      true
+     
+    
+   
 
+   - 
+    
+     
+      signed 1 byte integer
+     
+     
+      int8
+     
+    
+   
 
+   - 
+    
+     
+      unsigned 2 bytes integer
+     
+     
+      uint16
+     
+    
+   
 
+   - 
+    
+     
+      signed 2 bytes integer
+     
+     
+      int16
+     
+    
+   
 
+   - 
+    
+     
+      unsigned 4 bytes integer
+     
+     
+      uint32
+     
+    
+   
 
+   - 
+    
+     
+      signed 4 bytes integer
+     
+     
+      int32
+     
+    
+   
 
+   - 
+    
+     
+      4 bytes floating point number
+     
+     
+      float
+     
+    
+   
 
+  
+ 
+ 
+ 
+