Urdu Directional Mark Detector

What the Urdu Directional Mark Detector Does

The Urdu Directional Mark Detector scans a piece of text for the invisible directional marks. These are the left-to-right mark, the right-to-left mark, and the Arabic letter mark, three characters that carry a direction but take no visible space. The detector reports each one, how many there are, and where.

Because the marks are invisible, a detector is the reliable way to know they are present in your text.

Everything runs on your own device. Your text is never uploaded or stored, so it stays private while you scan it.

How to Detect Marks

1. Paste your text. Enter or paste the text you want to check.
2. Read the verdict. See at once whether any directional marks are present.
3. Check the counts. See how many of each mark, and where they sit.
4. Copy or download. Copy the report, or save it as a text file.

The Three Marks

The left-to-right mark, U+200E, behaves like an invisible left-to-right character. The right-to-left mark, U+200F, behaves like an invisible right-to-left one. The Arabic letter mark, U+061C, behaves like an invisible Arabic character. The detector counts each of the three separately.

Why They Matter

A directional mark can be useful to fix the direction of a lone number or a bracket in mixed Urdu and English. It can also slip in unnoticed when copying, where it does nothing helpful. Either way, knowing it is there lets you decide whether to keep it.

The Marked-Up Copy

The detector can show a copy of your text with each mark replaced by a visible tag, so you can see exactly where an invisible mark sits between the letters you can read.

A Worked Example

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The result above comes from the same function the tool uses, so it reflects real behavior. Press Load Example to try it.

Who Uses This Detector

Developers use it to check stored text. Editors use it to tidy documents. Anyone unsure about hidden marks uses it to find them.

Accuracy and Limits

The detector finds the three directional marks by their code points, exactly. It reports the marks that are present; it does not judge whether they were added on purpose. For the embeddings, overrides, and isolates, use the bidi character detector.

Good to know: ordinary Urdu letters are naturally right-to-left and are not marks, so they are not flagged.

Your Data Stays Private

The detector runs fully in your browser with standard web technology. Your text is not uploaded or stored, and it is not sent to any analytics service. Only your star rating is sent, to record the tool’s rating. When you close the page, your text is gone.