Convert digits between Western, Arabic-Indic and Persian numerals

What it changes

Every digit in the text is switched to the set you choose. A digit in any of the three forms is recognised, so a text that mixes 12 and ١٢ comes out consistent. Letters, punctuation and everything else are left exactly as they were. The option for separators also turns the decimal point and the thousands comma between digits into the Arabic forms (٫ and ٬) or back again.

Before:  The meeting is on 12 March 2026 at room 5. The budget is 1,250.50.
After:   The meeting is on ١٢ March ٢٠٢٦ at room ٥. The budget is ١٬٢٥٠٫٥٠.   (Arabic-Indic, with separators)

Subtitle files

If the text contains --> it is treated as an SRT or VTT file. The timing lines, the cue numbers and the WEBVTT header are copied unchanged and only the words of each cue are converted, so the result is still a valid subtitle file. If your player or platform shows Arabic-Indic digits in the cue text, this is how you get there without retyping. The related tools fix Arabic SRT punctuation and subtitle editor cover the other usual clean-ups.

The three digit sets

• Western (0-9), the digits of the Latin script, used in Arabic text in many places.
• Arabic-Indic (٠-٩), Unicode U+0660 to U+0669, the digits written in Arabic script.
• Persian and Urdu (۰-۹), Unicode U+06F0 to U+06F9. They match the Arabic-Indic set except 4, 5 and 6.

A consistent file

The usual problem is not which set to use but a file that uses both: part of it typed by hand in one style, part pasted from a transcript in another, or numbers in the cue text and in an on-screen graphic that do not match. Run the whole text through one setting and the digits become the same everywhere. Then read the file once in a player, because digits in the middle of Arabic sentences are one of the places where the order of right-to-left and left-to-right text can look wrong, and that is something only your eyes can check.

What it does not do

It converts digits only. It does not write numbers out in words, convert dates between calendars or change units. A number spelled in words (“twelve”, “اثنا عشر”) is left alone. It cannot tell a digit that is part of a phone number or a code from one in a sentence, so check the result if your text has either. If the text came from speech recognition, which may write numbers as digits or as words, convert it here to make the digits consistent, then read it against the audio. For Arabic transcripts, the Arabic transcription page says what to expect.