Convert multiple files to UTF-8 encoding with Notepad++

ConvertUTF-8.py

# 2016-2017 Soverance Studios.
# Scott McCutchen

# This file will search all files and folders within a given directory, and use Notepad++ to convert their encoding to UTF-8 without Byte Order Marks
#
# This file must be run using the PythonScript plugin from within Notepad++, which is available through the Notepad++ Plugin Manager
#
# You must have Python 2.7 installed
#
# Additionally, this script can only exist and be run from within the Notepad++ user's working directory, the default of which is here:
# Note that selecting "New Script" from within the PythonScript plugin will automatically default to this save location

#  .. USER DIRECTORY\AppData\Roaming\Notepad++\plugins\Config\PythonScript\scripts

import os;
import sys;
from Npp import notepad

filePathSrc="U:\\UnrealEngine\\Ethereal\\Source\\Ethereal" # Path to the folder with files to convert

for root, dirs, files in os.walk(filePathSrc):
    for fn in files:
        if fn[-2:] == '.h' or fn[-4:] == '.cpp': # Specify file types, taking care to change the fn[number] to correspond to length of the file's extension including the .
             notepad.open(root + "\\" + fn)
             notepad.runMenuCommand("Encoding", "Encode in ANSI")
             notepad.runMenuCommand("Encoding", "Convert to UTF-8")
             notepad.save()
             notepad.close()

Here is an improved version that prints the action in the console and also accounts for non-Latin characters like Cyrillic, Japanese, Chinese etc... in the path

# -*- coding: utf-8 -*-
import os
import sys
from Npp import notepad

filePathSrc = "D:\\Файлове\\" # Path to the folder with files to convert

filePathSrc = filePathSrc.decode('utf-8')
os.chdir(filePathSrc)
for root, dirs, files in os.walk(".", topdown = False):
    for fn in files:
        if fn[-4:] == '.txt': 
			notepad.open(root + "\\" + fn)             
			notepad.runMenuCommand("Encoding", "Convert to UTF-8")			 
			notepad.save()
			console.write('File ' + fn + ' saved. Closing ... \n')
			notepad.close()

Thanks! Had ~65k small text files where every 1000 or so there was a 0x90 character messing up my processing!

Does this script work on folder trees, with sub-folders?

Does this script work on folder trees, with sub-folders?

no, i'm also searching to a solution with subfolders

Does this script work on folder trees, with sub-folders?

no, i'm also searching to a solution with subfolders

Did you test it? os.walk is set so that it goes through folders recursively, so it should work with subfolders.