diff --git a/dbx/src/main/java/de/julianweinelt/databench/dbx/api/ui/tree/ProjectTree.java b/dbx/src/main/java/de/julianweinelt/databench/dbx/api/ui/tree/ProjectTree.java
new file mode 100644
index 0000000..384695f
--- /dev/null
+++ b/dbx/src/main/java/de/julianweinelt/databench/dbx/api/ui/tree/ProjectTree.java
@@ -0,0 +1,30 @@
+package de.julianweinelt.databench.dbx.api.ui.tree;
+
+import lombok.Getter;
+
+import javax.swing.tree.DefaultMutableTreeNode;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.UUID;
+
+@Getter
+public class ProjectTree {
+    private final UUID project;
+    private final List<TDatabase> databases = new ArrayList<>();
+
+    public ProjectTree(UUID project) {
+        this.project = project;
+    }
+
+    public void addDatabase(TDatabase db) {
+        databases.add(db);
+    }
+
+    public DefaultMutableTreeNode render() {
+        DefaultMutableTreeNode root = new DefaultMutableTreeNode("Project");
+        for (TDatabase db : databases) {
+            root.add(db.createTreeObject().getNode());
+        }
+        return root;
+    }
+}
\ No newline at end of file
diff --git a/dbx/src/main/java/de/julianweinelt/databench/dbx/api/ui/tree/TColumn.java b/dbx/src/main/java/de/julianweinelt/databench/dbx/api/ui/tree/TColumn.java
new file mode 100644
index 0000000..ab397f3
--- /dev/null
+++ b/dbx/src/main/java/de/julianweinelt/databench/dbx/api/ui/tree/TColumn.java
@@ -0,0 +1,15 @@
+package de.julianweinelt.databench.dbx.api.ui.tree;
+
+
+public class TColumn {
+    private String name;
+    private TDataType dataType;
+    private boolean notNull;
+    private Object defaultValue;
+    private boolean primaryKey;
+    private boolean unique;
+    //TODO: CHECK
+    private boolean autoIncrement;
+    private boolean unsigned;
+    private String comment;
+}
diff --git a/dbx/src/main/java/de/julianweinelt/databench/dbx/api/ui/tree/TDataType.java b/dbx/src/main/java/de/julianweinelt/databench/dbx/api/ui/tree/TDataType.java
new file mode 100644
index 0000000..c1ea2ef
--- /dev/null
+++ b/dbx/src/main/java/de/julianweinelt/databench/dbx/api/ui/tree/TDataType.java
@@ -0,0 +1,5 @@
+package de.julianweinelt.databench.dbx.api.ui.tree;
+
+public class TDataType {
+
+}
diff --git a/dbx/src/main/java/de/julianweinelt/databench/dbx/api/ui/tree/TDatabase.java b/dbx/src/main/java/de/julianweinelt/databench/dbx/api/ui/tree/TDatabase.java
new file mode 100644
index 0000000..d97b104
--- /dev/null
+++ b/dbx/src/main/java/de/julianweinelt/databench/dbx/api/ui/tree/TDatabase.java
@@ -0,0 +1,40 @@
+package de.julianweinelt.databench.dbx.api.ui.tree;
+
+import lombok.Getter;
+import lombok.Setter;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.UUID;
+
+@Getter @Setter
+public class TDatabase extends TreeBase implements TreeCallback<TDatabase> {
+    private boolean offline;
+
+    private final List<TTable> tables = new ArrayList<>();
+    private final List<TView> views = new ArrayList<>();
+
+    public TDatabase(UUID uniqueID, String name, boolean offline) {
+        super(uniqueID, name);
+        this.offline = offline;
+    }
+    public TDatabase (String name) {
+        super(UUID.randomUUID(), name);
+        offline = false;
+    }
+
+    @Override
+    public TreeObject createTreeObject() {
+        return new TreeObject(TreeObject.Type.DATABASE, getUniqueID(), getName()) {
+            @Override
+            public String icon() {
+                return (offline ? "/icons/editor/database-offline.png" : "/icons/editor/database.png");
+            }
+        };
+    }
+
+    @Override
+    public TDatabase call() {
+        return this;
+    }
+}
\ No newline at end of file
diff --git a/dbx/src/main/java/de/julianweinelt/databench/dbx/api/ui/tree/TTable.java b/dbx/src/main/java/de/julianweinelt/databench/dbx/api/ui/tree/TTable.java
new file mode 100644
index 0000000..c47f1ab
--- /dev/null
+++ b/dbx/src/main/java/de/julianweinelt/databench/dbx/api/ui/tree/TTable.java
@@ -0,0 +1,24 @@
+package de.julianweinelt.databench.dbx.api.ui.tree;
+
+import lombok.Getter;
+import lombok.Setter;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.UUID;
+
+@Getter @Setter
+public class TTable {
+    private final UUID uniqueID;
+    private final String database;
+    private String name;
+
+    private final List<TColumn> columns = new ArrayList<>();
+    private final List<TableRelation> relations = new ArrayList<>();
+
+    public TTable(UUID uniqueID, String database, String name) {
+        this.uniqueID = uniqueID;
+        this.database = database;
+        this.name = name;
+    }
+}
\ No newline at end of file
diff --git a/dbx/src/main/java/de/julianweinelt/databench/dbx/api/ui/tree/TView.java b/dbx/src/main/java/de/julianweinelt/databench/dbx/api/ui/tree/TView.java
new file mode 100644
index 0000000..a10c09a
--- /dev/null
+++ b/dbx/src/main/java/de/julianweinelt/databench/dbx/api/ui/tree/TView.java
@@ -0,0 +1,4 @@
+package de.julianweinelt.databench.dbx.api.ui.tree;
+
+public class TView {
+}
diff --git a/dbx/src/main/java/de/julianweinelt/databench/dbx/api/ui/tree/TableRelation.java b/dbx/src/main/java/de/julianweinelt/databench/dbx/api/ui/tree/TableRelation.java
new file mode 100644
index 0000000..f5c9a53
--- /dev/null
+++ b/dbx/src/main/java/de/julianweinelt/databench/dbx/api/ui/tree/TableRelation.java
@@ -0,0 +1,5 @@
+package de.julianweinelt.databench.dbx.api.ui.tree;
+
+import java.util.UUID;
+
+public record TableRelation(String name, UUID table1, UUID table2, String table1Column, String table2Column) {}
\ No newline at end of file
diff --git a/dbx/src/main/java/de/julianweinelt/databench/dbx/api/ui/tree/TreeBase.java b/dbx/src/main/java/de/julianweinelt/databench/dbx/api/ui/tree/TreeBase.java
new file mode 100644
index 0000000..c2d4459
--- /dev/null
+++ b/dbx/src/main/java/de/julianweinelt/databench/dbx/api/ui/tree/TreeBase.java
@@ -0,0 +1,19 @@
+package de.julianweinelt.databench.dbx.api.ui.tree;
+
+import lombok.Getter;
+import lombok.Setter;
+
+import java.util.UUID;
+
+@Getter @Setter
+public abstract class TreeBase {
+    private final UUID uniqueID;
+    private String name;
+
+    public TreeBase(UUID uniqueID, String name) {
+        this.uniqueID = uniqueID;
+        this.name = name;
+    }
+
+    public abstract TreeObject createTreeObject();
+}
diff --git a/dbx/src/main/java/de/julianweinelt/databench/dbx/api/ui/tree/TreeCallback.java b/dbx/src/main/java/de/julianweinelt/databench/dbx/api/ui/tree/TreeCallback.java
new file mode 100644
index 0000000..cdbd418
--- /dev/null
+++ b/dbx/src/main/java/de/julianweinelt/databench/dbx/api/ui/tree/TreeCallback.java
@@ -0,0 +1,5 @@
+package de.julianweinelt.databench.dbx.api.ui.tree;
+
+public interface TreeCallback<T> {
+    T call();
+}
diff --git a/dbx/src/main/java/de/julianweinelt/databench/dbx/api/ui/tree/TreeObject.java b/dbx/src/main/java/de/julianweinelt/databench/dbx/api/ui/tree/TreeObject.java
new file mode 100644
index 0000000..d058117
--- /dev/null
+++ b/dbx/src/main/java/de/julianweinelt/databench/dbx/api/ui/tree/TreeObject.java
@@ -0,0 +1,40 @@
+package de.julianweinelt.databench.dbx.api.ui.tree;
+
+import lombok.Getter;
+import lombok.Setter;
+
+import javax.swing.tree.DefaultMutableTreeNode;
+import java.util.UUID;
+
+@Getter @Setter
+public abstract class TreeObject {
+    private final UUID uniqueID;
+    private final Type type;
+    private String name;
+
+    public abstract String icon();
+
+    public DefaultMutableTreeNode getNode() {
+        return new DefaultMutableTreeNode(this);
+    }
+
+    public TreeObject(Type type, UUID uniqueID, String name) {
+        this.uniqueID = uniqueID;
+        this.type = type;
+        this.name = name;
+    }
+
+    public enum Type {
+        PROJECT,
+        DATABASE,
+        FOLDER_TABLES,
+        FOLDER_VIEWS,
+        FOLDER_PROCEDURES,
+        FOLDER_FUNCTIONS,
+        TABLE,
+        VIEW,
+        PROCEDURE,
+        FUNCTION,
+        JOB // SQL Server only
+    }
+}