diff --git a/src/CytoscapeExport.ts b/src/CytoscapeExport.ts
deleted file mode 100644
index d6d67bd..0000000
--- a/src/CytoscapeExport.ts
+++ /dev/null
@@ -1,66 +0,0 @@
-import { Tree, TreeNode } from './Model'
-
-export class CytoscapeExport {
-  public static renderNodeInformation(node: TreeNode): any {
-    return {
-      data: {
-        id: node.sourceEdge.hash(),
-        label: this.renderLabel(node.value)
-      }
-    }
-  }
-  public static toDot(tree: Tree): string {
-    let i = 1
-    let leaveEdges = Object.values(tree.edges)
-      .map(e => e.node)
-      .map(node => node.leafes())
-      .reduce((a, b) => a.concat(b), [])
-      .map(leave => leave.branch())
-
-    const allEdges: Array<any> = []
-    const nodeInformation: {[s: string]: any} = {}
-    leaveEdges.map(edges => edges.reduce( (prev, current) => {
-        let currentHash = current.sourceEdge.hash()
-        nodeInformation[currentHash] = this.renderNodeInformation(current)
-        if (current && prev) {
-          allEdges.push({
-            data: {
-              id: prev.sourceEdge.hash()+currentHash,
-              source: prev.sourceEdge.hash(),
-              target: currentHash,
-              label: this.renderLabel(current.sourceEdge.name)
-            }
-          })
-        }
-        return current
-    }))
-
-    return JSON.stringify(
-      [this.renderNodeInformation(tree)]
-        .concat(Object.values(nodeInformation))
-        .concat(allEdges), undefined, '  '
-    )
-  }
-
-  private static renderLabel(value: any): string {
-    let str;
-    if(!isNaN(value)) {
-      str = value
-    } else {
-      str = JSON.stringify(value)
-      if(str && str.length > 0) {
-        str = str.slice(1, -1)
-      }
-    }
-
-    if (!str) {
-      return ""
-    }
-
-    if(str.length > 20) {
-      str = str.slice(0, 20)+'…'
-    }
-
-    return str
-  }
-}
diff --git a/src/VisExport.ts b/src/VisExport.ts
deleted file mode 100644
index a2b3fc2..0000000
--- a/src/VisExport.ts
+++ /dev/null
@@ -1,62 +0,0 @@
-import { Tree, TreeNode } from './Model'
-
-export class VisExport {
-  public static renderNodeInformation(node: TreeNode): any {
-    return {
-      id: node.sourceEdge.hash(),
-      label: this.renderLabel(node.value)
-    }
-  }
-  public static toDot(tree: Tree): string {
-    let i = 1
-    let leaveEdges = Object.values(tree.edges)
-      .map(e => e.node)
-      .map(node => node.leafes())
-      .reduce((a, b) => a.concat(b), [])
-      .map(leave => leave.branch())
-
-    const allEdges: {[s: string]: any} = {}
-    const nodeInformation: {[s: string]: any} = {}
-    leaveEdges.map(edges => edges.reduce( (prev, current) => {
-        let currentHash = current.sourceEdge.hash()
-        nodeInformation[currentHash] = this.renderNodeInformation(current)
-        if (current && prev) {
-          let edgeId = prev.sourceEdge.hash()+currentHash
-          allEdges[prev.sourceEdge.hash()+currentHash] = {
-            id: prev.sourceEdge.hash()+currentHash,
-            from: prev.sourceEdge.hash(),
-            to: currentHash,
-            label: this.renderLabel(current.sourceEdge.name)
-          }
-        }
-        return current
-    }))
-
-    return JSON.stringify({
-      nodes: [this.renderNodeInformation(tree)].concat(Object.values(nodeInformation)),
-      edges: Object.values(allEdges)
-    }, undefined, '  ')
-  }
-
-  private static renderLabel(value: any): string {
-    let str;
-    if(!isNaN(value)) {
-      str = value
-    } else {
-      str = JSON.stringify(value)
-      if(str && str.length > 0) {
-        str = str.slice(1, -1)
-      }
-    }
-
-    if (!str) {
-      return ""
-    }
-
-    if(str.length > 20) {
-      str = str.slice(0, 20)+'…'
-    }
-
-    return str
-  }
-}