diff --git a/utils/dataUpdater.js b/utils/dataUpdater.js
new file mode 100644
index 0000000..333555e
--- /dev/null
+++ b/utils/dataUpdater.js
@@ -0,0 +1,233 @@
+/* ----------------------------------------------------------------------------
+
+ Question Server question file merger
+ GitLab: <https://gitlab.com/MrFry/mrfrys-node-server>
+
+ This program 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.
+
+ This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
+
+ ------------------------------------------------------------------------- */
+
+const classes = require('./question-classes/classes.js')
+const utils = require('./utils.js')
+
+Main()
+
+function Main () {
+  console.clear()
+  const params = GetParams()
+  console.log(params)
+  var db = []
+
+  PrintLN()
+  console.log(params[0] + ': ')
+  try {
+    db = ParseJSONData(utils.ReadFile(params[0]))
+    console.log('JSON data added')
+  } catch (e) {
+    console.log(e)
+    console.log('Trying with old format...')
+    db = ReadData(utils.ReadFile(params[0])).result
+  }
+  PrintLN()
+
+  PrintDB(db)
+
+  PrintLN()
+
+  RefactorDb(db)
+
+  utils.WriteFile(JSON.stringify(db), 'newData')
+}
+
+function RefactorDb (db) {
+  db.Subjects.forEach((subj) => {
+    subj.Questions.forEach((question) => {
+      if (question.I) {
+        question.data = {
+          type: 'image',
+          images: question.I
+        }
+        delete question.I
+      } else {
+        question.data = {
+          type: 'simple'
+        }
+      }
+    })
+  })
+}
+
+// -----------------------------------------------------------------------------------------
+
+function PrintLN () {
+  console.log('------------------------------------------------------')
+}
+
+function PrintDB (r, olds) {
+  console.log('Data subject count: ' + r.length)
+  var maxLength = 0
+  for (let i = 0; i < r.length; i++) {
+    if (maxLength < r.Subjects[i].Name.length) { maxLength = r.Subjects[i].Name.length }
+  }
+
+  let qcount = 0
+
+  for (let i = 0; i < r.length; i++) {
+    let line = i
+    if (line < 10) { line += ' ' }
+
+    line += ': '
+    var currLength = line.length + maxLength + 4
+    line += r.Subjects[i].Name
+
+    while (line.length < currLength) {
+      if (i % 4 === 0) { line += '.' } else { line += ' ' }
+    }
+
+    if (olds && olds.length > 0) {
+      // TODO: check if correct row! should be now, but well...
+      if (olds[i] < 10) { line += ' ' }
+      if (olds[i] < 100) { line += ' ' }
+
+      line += olds[i]
+      line += ' -> '
+    }
+
+    if (r.Subjects[i].length < 10) { line += ' ' }
+    if (r.Subjects[i].length < 100) { line += ' ' }
+
+    line += r.Subjects[i].length
+    qcount += r.Subjects[i].length
+
+    line += ' db'
+
+    console.log(line)
+  }
+
+  console.log('Total questions: ' + qcount)
+
+  PrintLN()
+}
+
+function GetParams () {
+  return process.argv.splice(2)
+}
+
+function ParseJSONData (data) {
+  var d = JSON.parse(data)
+  var r = new classes.QuestionDB((x) => true, (x, y) => console.log(x, y))
+  var rt = []
+
+  for (var i = 0; i < d.Subjects.length; i++) {
+    let s = new classes.Subject(d.Subjects[i].Name)
+    var j = 0
+    for (j = 0; j < d.Subjects[i].Questions.length; j++) {
+      var currQ = d.Subjects[i].Questions[j]
+      s.AddQuestion(new classes.Question(currQ.Q, currQ.A, currQ.I))
+    }
+    rt.push({
+      name: d.Subjects[i].Name,
+      count: j
+    })
+    r.AddSubject(s)
+  }
+  return r
+}
+
+function ReadData (data) {
+  const d = data.split('\n')
+  const r = new classes.QuestionDB((x) => true, (x, y) => console.log(x, y))
+  var logs = []
+  var currSubj = '' // the current subjects name
+  var ExpectedIdentifier = ['+', '?']
+  let currQuestion = new classes.Question()
+
+  var i = -1
+  while (i < d.length) {
+    let currIdentifier
+    let skipped = 0
+    do {
+      if (skipped >= 1) { logs.push(i + ': ' + d[i]) }
+      i++
+      if (i >= d.length) {
+        if (currQuestion.IsComplete()) { r.AddQuestion(currSubj, currQuestion) }
+        return {
+          result: r,
+          logs: logs
+        }
+      }
+      currIdentifier = d[i][0]
+      skipped++
+    } while (!ExpectedIdentifier.includes(currIdentifier) && i < d.length)
+
+    let currData = d[i].substring(1).trim()
+
+    if (currIdentifier === '+') {
+      if (currQuestion.IsComplete()) { r.AddQuestion(currSubj, currQuestion) }
+      currQuestion = new classes.Question()
+      currSubj = currData
+      ExpectedIdentifier = ['?']
+      continue
+    }
+
+    if (currIdentifier === '?') {
+      if (currQuestion.IsComplete()) {
+        r.AddQuestion(currSubj, currQuestion)
+        currQuestion = new classes.Question()
+      }
+      // overwriting is allowed here, bcus:
+      // ?????!>
+      currQuestion.Q = currData
+      ExpectedIdentifier = ['!', '?']
+      continue
+    }
+
+    if (currIdentifier === '!') {
+      // if dont have question continue
+      if (!currQuestion.HasQuestion()) { throw new Error('No question! (A)') }
+      // dont allow overwriting
+      // ?!!!!
+      if (!currQuestion.HasAnswer()) {
+        currData = currData.replace('A helyes válaszok: ', '')
+        currData = currData.replace('A helyes válasz: ', '')
+
+        currQuestion.A = currData
+      }
+      ExpectedIdentifier = ['?', '>', '+']
+      continue
+    }
+
+    if (currIdentifier === '>') {
+      // if dont have question or answer continue
+      if (!currQuestion.HasQuestion()) { throw new Error('No question! (I)') }
+      if (!currQuestion.HasAnswer()) { throw new Error('No asnwer! (I)') }
+      // dont allow overwriting
+      // ?!>>>
+      if (!currQuestion.HasImage()) {
+        try {
+          currQuestion.I = JSON.parse(currData)
+        } catch (e) {
+          currQuestion.I = currData.split(',')
+        }
+      }
+      ExpectedIdentifier = ['?', '+']
+      continue
+    }
+  }
+
+  return {
+    result: r,
+    logs: logs
+  }
+}