Arabic Tools أدوات النص العربي
Remove tashkeel and tatweel, normalize letters for search, switch between ٠١٢ and 012 digits, or turn Arabizi like mar7aba into مرحبا. Everything happens on your device.
Digits الأرقام
Arabizi has no single standard, so this is a best guess: short vowels are dropped, long ones become ا و ي, doubled letters become one, and el / al join the next word. Check the result and edit what you need.