diff --git a/apps/remix-ide/src/app/tabs/debugger/debuggerUI.js b/apps/remix-ide/src/app/tabs/debugger/debuggerUI.js
index 96b2ca6280..03417c5c3d 100644
--- a/apps/remix-ide/src/app/tabs/debugger/debuggerUI.js
+++ b/apps/remix-ide/src/app/tabs/debugger/debuggerUI.js
@@ -2,7 +2,7 @@ import React from 'react';
 import ReactDOM from 'react-dom'
 import { StepManager } from '@remix-project/debugger-ui'
 var TxBrowser = require('./debuggerUI/TxBrowser')
-var StepManagerUI = require('./debuggerUI/StepManager')
+// var StepManagerUI = require('./debuggerUI/StepManager')
 var VmDebugger = require('./debuggerUI/VmDebugger')
 var toaster = require('../../ui/tooltip')
 
@@ -61,7 +61,7 @@ class DebuggerUI {
     this.sourceHighlighter = new SourceHighlighter()
 
     this.startTxBrowser()
-    this.stepManager = null
+    // this.stepManager = null
 
     this.statusMessage = ''
     this.currentReceipt
@@ -187,7 +187,7 @@ class DebuggerUI {
 
     this.listenToEvents()
     this.debugger.debug(blockNumber, txNumber, tx, () => {
-      this.stepManager = new StepManagerUI(this.debugger.step_manager)
+      // this.stepManager = new StepManagerUI(this.debugger.step_manager)
       this.vmDebugger = new VmDebugger(this.debugger.vmDebuggerLogic)
       this.txBrowser.setState({ blockNumber, txNumber, debugging: true })
       this.renderDebugger()
@@ -259,10 +259,10 @@ class DebuggerUI {
     yo.update(this.debuggerPanelsView, yo`<div></div>`)
     yo.update(this.stepManagerView, yo`<div></div>`)
     if (this.vmDebugger) this.vmDebugger.remove()
-    if (this.stepManager) this.stepManager.remove()
+    // if (this.stepManager) this.stepManager.remove()
     if (this.txBrowser) this.txBrowser.setState({debugging: false})
     this.vmDebugger = null
-    this.stepManager = null
+    // this.stepManager = null
     if (this.debugger) delete this.debugger
     this.event.trigger('traceUnloaded')
   }
diff --git a/libs/debugger-ui/src/lib/button-navigator/button-navigator.spec.tsx b/libs/debugger-ui/src/lib/button-navigator/button-navigator.spec.tsx
deleted file mode 100644
index ed9b896f47..0000000000
--- a/libs/debugger-ui/src/lib/button-navigator/button-navigator.spec.tsx
+++ /dev/null
@@ -1,11 +0,0 @@
-import React from 'react';
-import { render } from '@testing-library/react';
-
-import ButtonNavigation from './button-navigator';
-
-describe(' ButtonNavigation', () => {
-  it('should render successfully', () => {
-    const { baseElement } = render(<ButtonNavigation />);
-    expect(baseElement).toBeTruthy();
-  });
-});
diff --git a/libs/debugger-ui/src/lib/slider/slider.css b/libs/debugger-ui/src/lib/slider/slider.css
deleted file mode 100644
index e69de29bb2..0000000000
diff --git a/libs/debugger-ui/src/lib/slider/slider.spec.tsx b/libs/debugger-ui/src/lib/slider/slider.spec.tsx
deleted file mode 100644
index da80d95d45..0000000000
--- a/libs/debugger-ui/src/lib/slider/slider.spec.tsx
+++ /dev/null
@@ -1,11 +0,0 @@
-import React from 'react';
-import { render } from '@testing-library/react';
-
-import Slider from './slider';
-
-describe(' Slider', () => {
-  it('should render successfully', () => {
-    const { baseElement } = render(<Slider />);
-    expect(baseElement).toBeTruthy();
-  });
-});
diff --git a/libs/debugger-ui/src/lib/step-manager/step-manager.css b/libs/debugger-ui/src/lib/step-manager/step-manager.css
deleted file mode 100644
index e69de29bb2..0000000000
diff --git a/libs/debugger-ui/src/lib/step-manager/step-manager.spec.tsx b/libs/debugger-ui/src/lib/step-manager/step-manager.spec.tsx
deleted file mode 100644
index bea258b802..0000000000
--- a/libs/debugger-ui/src/lib/step-manager/step-manager.spec.tsx
+++ /dev/null
@@ -1,11 +0,0 @@
-import React from 'react';
-import { render } from '@testing-library/react';
-
-import StepManager from './step-manager';
-
-describe(' StepManager', () => {
-  it('should render successfully', () => {
-    const { baseElement } = render(<StepManager />);
-    expect(baseElement).toBeTruthy();
-  });
-});
diff --git a/libs/debugger-ui/src/lib/step-manager/step-manager.tsx b/libs/debugger-ui/src/lib/step-manager/step-manager.tsx
index f8007a7493..018c1d57c3 100644
--- a/libs/debugger-ui/src/lib/step-manager/step-manager.tsx
+++ b/libs/debugger-ui/src/lib/step-manager/step-manager.tsx
@@ -1,5 +1,4 @@
 import React, { useState, useEffect } from 'react'
-import './step-manager.css'
 import Slider from '../slider/slider'
 import ButtonNavigator from '../button-navigator/button-navigator'
 
diff --git a/libs/debugger-ui/src/lib/tx-browser/tx-browser.css b/libs/debugger-ui/src/lib/tx-browser/tx-browser.css
new file mode 100644
index 0000000000..3f50123101
--- /dev/null
+++ b/libs/debugger-ui/src/lib/tx-browser/tx-browser.css
@@ -0,0 +1,24 @@
+.container {
+    display: flex;
+    flex-direction: column;
+}
+.txContainer {
+    display: flex;
+    flex-direction: column;
+}
+.txinput {
+    width: inherit;
+    font-size: small;
+    white-space: nowrap;
+    overflow: hidden;
+    text-overflow: ellipsis;
+}
+.txbutton {
+    width: inherit;
+}
+.txbutton:hover {
+}
+.vmargin {
+    margin-top: 10px;
+    margin-bottom: 10px;
+}
\ No newline at end of file
diff --git a/libs/debugger-ui/src/lib/tx-browser/tx-browser.tsx b/libs/debugger-ui/src/lib/tx-browser/tx-browser.tsx
new file mode 100644
index 0000000000..a84161c3f1
--- /dev/null
+++ b/libs/debugger-ui/src/lib/tx-browser/tx-browser.tsx
@@ -0,0 +1,82 @@
+import React, { useState } from 'react'
+import './tx-browser.css'
+import EventManager from '../../../../../apps/remix-ide/src/lib/events'
+
+export const TxBrowser = () => {
+  const event = new EventManager()
+  const [state, setState] = useState({
+    txNumber: undefined,
+    debugging: false
+  })
+
+  const handleSubmit = () => {
+    if (state.debugging) {
+      unload()
+    } else {
+      event.trigger('requestDebug', [undefined, state.txNumber])
+    }
+  }
+  
+  const unload = () => {
+    event.trigger('unloadRequested', [])
+  }
+
+  const updateTxN = (ev) => {
+    setState(prevState => {
+      return {
+        ...prevState,
+        txNumber: ev.target.value
+      }
+    })
+  }
+
+  const txInputChanged = (e) => {
+    // todo check validation of txnumber in the input element, use
+    // required
+    // oninvalid="setCustomValidity('Please provide a valid transaction number, must start with 0x and have length of 22')"
+    // pattern="^0[x,X]+[0-9a-fA-F]{22}"
+    // this.state.txNumberInput.setCustomValidity('')
+  
+    setState(prevState => {
+      return {
+        ...prevState,
+        txNumber: e.target.value
+      }
+    })
+  }
+
+  return (
+    <div className="container">
+      <div className="txContainer">
+        <div className="py-1 d-flex justify-content-center w-100 input-group">
+          <input
+            value={state.txNumber || ''}
+            className="form-control m-0 css.txinput"
+            id='txinput'
+            onKeyUp={updateTxN}
+            type='text'
+            onInput={txInputChanged}
+            placeholder={'Transaction hash, should start with 0x'}
+            data-id="debuggerTransactionInput"
+            disabled={state.debugging}
+          />
+        </div>
+        <div className="d-flex justify-content-center w-100 btn-group py-1">
+        <button
+          className="btn btn-primary btn-sm txbutton"
+          id="load"
+          title={state.debugging ? 'Stop debugging' : 'Start debugging'}
+          onClick={handleSubmit}
+          data-id="debuggerTransactionStartButton"
+          disabled={!state.txNumber ? true : !state.debugging ? false : true }
+        >
+          { state.debugging ? 'Stop' : 'Start' } debugging
+        </button>
+        </div>
+      </div>
+      <span id='error'></span>
+    </div>
+  )
+}
+
+export default TxBrowser
diff --git a/libs/debugger-ui/src/lib/vm-debugger/code-list-view.tsx b/libs/debugger-ui/src/lib/vm-debugger/code-list-view.tsx
new file mode 100644
index 0000000000..a3b6031edc
--- /dev/null
+++ b/libs/debugger-ui/src/lib/vm-debugger/code-list-view.tsx
@@ -0,0 +1,21 @@
+import React, { useState } from 'react'
+import './styles/code-list-view.css'
+import EventManager from '../../../../../apps/remix-ide/src/lib/events'
+
+export const VmDebugger = ({ vmDebuggerLogic }) => {
+  const event = new EventManager()
+  const [state, setState] = useState({
+    code: '',
+    address: '',
+    itemSelected: null,
+    
+  })
+
+  return (
+    <div>
+      <h1>Welcome to vmDebugger!</h1>
+    </div>
+  )
+}
+
+export default VmDebugger
diff --git a/libs/debugger-ui/src/lib/vm-debugger/dropdown-panel.tsx b/libs/debugger-ui/src/lib/vm-debugger/dropdown-panel.tsx
new file mode 100644
index 0000000000..97934dd710
--- /dev/null
+++ b/libs/debugger-ui/src/lib/vm-debugger/dropdown-panel.tsx
@@ -0,0 +1,178 @@
+import React, { useState, useRef } from 'react'
+import './styles/dropdown-panel.css'
+import EventManager from '../../../../../apps/remix-ide/src/lib/events'
+import TreeView from '../../../../../apps/remix-ide/src/app/ui/TreeView'
+import copyToClipboard from '../../../../../apps/remix-ide/src/app/ui/copy-to-clipboard'
+
+export const DropdownPanel = ({ name, opts, node }) => {
+    const event = new EventManager()
+    const treeView = new TreeView(opts)
+    const [state, setState] = useState({
+        header: '',
+        json: opts.json,
+        displayContentOnly: opts.displayContentOnly,
+        toggleDropdown: false,
+        message: {
+            innerText: '',
+            display: 'none'
+        },
+        dropdownContent: {
+            innerText: '',
+            display: 'none'
+        },
+        dropdownRawContent: {
+            innerText: '',
+            display: 'none'
+        },
+        title: {
+            innerText: '',
+            display: 'none'
+        },
+        showRefreshIcon: false
+    })
+    const dropdownRawEl = useRef(null)
+
+    const handleToggle = () => {
+        setState(prevState => {
+            if (prevState.toggleDropdown) event.trigger('hide', [])
+            else event.trigger('show', [])
+            return {
+                ...prevState,
+                toggleDropdown: !prevState.toggleDropdown
+            }
+        })
+    }
+
+    const copyClipboard = () => {
+        return dropdownRawEl.current.innerText ? dropdownRawEl.current.innerText : dropdownRawEl.current.textContent
+    }
+
+    const message = (message) => {
+        setState(state => {
+            return {
+                ...state,
+                message: {
+                    innerText: message,
+                    display: message ? 'block' : ''
+                },
+                dropdownRawContent: {
+                    ...state.dropdownRawContent,
+                    display: 'none'
+                },
+                dropdownContent: {
+                    ...state.dropdownContent,
+                    display: 'none'
+                },
+                showRefreshIcon: false
+            }
+        })
+    }
+
+    const setLoading = () => {
+        setState(prevState => {
+            return {
+                ...prevState,
+                message: {
+                    innerText: '',
+                    display: 'none'
+                },
+                dropdownRawContent: {
+                    ...prevState.dropdownRawContent,
+                    display: 'none'
+                },
+                dropdownContent: {
+                    ...prevState.dropdownContent,
+                    display: 'none'
+                },
+                showRefreshIcon: true
+            }
+        })
+    }
+
+    const update = function (data, header) {
+        setState(prevState => {
+            return {
+                ...prevState,
+                showRefreshIcon: false,
+                dropdownContent: {
+                    ...prevState.dropdownContent,
+                    display: 'none'
+                },
+                dropdownRawContent: {
+                    innerText: JSON.stringify(data, null, '\t'),
+                    display: 'block'
+                }
+            }
+        })
+        if (!this.displayContentOnly) {
+        //   this.view.querySelector('.title i.fa-copy').style.display = 'block'
+            setState(prevState => {
+                return {
+                    ...prevState,
+                    title: {
+                        innerText: header || '',
+                        display: 'block'
+                    }
+                }
+            })
+        }
+        message('')
+        if (state.json) {
+          treeView.update(data)
+        }
+    }
+
+    const hide = () => {
+        setState(prevState => {
+            return {
+                ...prevState,
+                toggleDropdown: false
+            }
+        })
+        event.trigger('hide', [])
+    } 
+      
+    const show = () => {
+        setState(prevState => {
+            return {
+                ...prevState,
+                toggleDropdown: true
+            }
+        })
+        event.trigger('show', [])
+    }
+
+    let content = <div>Empty</div>
+    if (state.json) {
+        content = treeView.render({}, null)
+    }
+    const title = !state.displayContentOnly ? 
+    <div className="py-0 px-1 title">
+        <div className={state.toggleDropdown ? 'icon fas fa-caret-down' : 'icon fas fa-caret-right'} onClick={handleToggle}></div>
+        <div className="name" onClick={handleToggle}>{name}</div><span className="nameDetail" onClick={handleToggle}></span>
+        {copyToClipboard(() => copyClipboard())}
+    </div> : <div></div>
+    
+    if (state.displayContentOnly) {
+        setState(prevState => {
+            return {
+                ...prevState,
+                toggleDropdown: true
+            }
+        })
+    }
+
+    return (
+        <div className="border rounded px-1 mt-1 bg-light">
+            { title }
+            <div className='dropdownpanel' style={{ display: state.toggleDropdown ? 'block' : 'none' }}>
+                <i className="refresh fas fa-sync" style={{ display: state.showRefreshIcon ? 'inline-block' : 'none' }} aria-hidden="true"></i>
+                <div className='dropdowncontent' style={{ display: state.dropdownContent.display }}>{node || content }</div>
+                <div className='dropdownrawcontent' style={{ display: state.dropdownRawContent.display }} ref={ dropdownRawEl }></div>
+                <div className='message' style={{ display: state.message.display }}></div>
+            </div>
+        </div>
+    )
+}
+
+export default DropdownPanel
\ No newline at end of file
diff --git a/libs/debugger-ui/src/lib/vm-debugger/styles/code-list-view.css b/libs/debugger-ui/src/lib/vm-debugger/styles/code-list-view.css
new file mode 100644
index 0000000000..44a5b020a7
--- /dev/null
+++ b/libs/debugger-ui/src/lib/vm-debugger/styles/code-list-view.css
@@ -0,0 +1,4 @@
+.instructions {
+    overflow-y: scroll;
+    max-height: 130px;
+}
\ No newline at end of file
diff --git a/libs/debugger-ui/src/lib/vm-debugger/styles/dropdown-panel.css b/libs/debugger-ui/src/lib/vm-debugger/styles/dropdown-panel.css
new file mode 100644
index 0000000000..4a87d06280
--- /dev/null
+++ b/libs/debugger-ui/src/lib/vm-debugger/styles/dropdown-panel.css
@@ -0,0 +1,44 @@
+.title {
+    display: flex;
+    align-items: center;
+  }
+  .name {
+    font-weight: bold;
+  }
+  .nameDetail {
+    font-weight: bold;
+    margin-left: 3px;
+  }
+  .icon {
+    margin-right: 5%;
+  }
+  .eyeButton {
+    margin: 3px;
+  }
+  .dropdownpanel {
+    width: 100%;
+    word-break: break-word;
+  }
+  .dropdownrawcontent {
+    padding: 2px;
+    word-break: break-word;
+  }
+  .message {
+    padding: 2px;
+    word-break: break-word;
+  }
+  .refresh {
+    display: none;
+    margin-left: 4px;
+    margin-top: 4px; 
+    animation: spin 2s linear infinite;
+  }
+  @-moz-keyframes spin {
+    to { -moz-transform: rotate(359deg); }
+  }
+  @-webkit-keyframes spin {
+    to { -webkit-transform: rotate(359deg); }
+  }
+  @keyframes spin {
+    to {transform:rotate(359deg);}
+  }
\ No newline at end of file
diff --git a/libs/debugger-ui/src/lib/vm-debugger/vm-debugger.tsx b/libs/debugger-ui/src/lib/vm-debugger/vm-debugger.tsx
new file mode 100644
index 0000000000..67ac48c9e5
--- /dev/null
+++ b/libs/debugger-ui/src/lib/vm-debugger/vm-debugger.tsx
@@ -0,0 +1,16 @@
+import React, { useState } from 'react';
+import './vm-debugger.css';
+
+export const VmDebugger = ({ vmDebuggerLogic }) => {
+  const [state, setState] = useState({
+    asmCode 
+  })
+
+  return (
+    <div>
+      <h1>Welcome to vmDebugger!</h1>
+    </div>
+  );
+};
+
+export default VmDebugger;