Question 1

What is the main difference between U+200B and ZWNJ?

Accepted Answer

U+200B acts as a break opportunity for line wrapping, while ZWNJ (U+200C) prevents adjacent letters from joining into a ligature.

Question 2

Does U+200B zero-width space allow line breaking?

Accepted Answer

Yes, layout engines treat U+200B as a valid place to wrap text onto a new line if the word exceeds the container width.

Question 3

Does ZWNJ allow line breaking?

Accepted Answer

No, a zero-width non-joiner (U+200C) is designed to keep words on the same line, only affecting character shape connections.

Question 4

Which character should I use for Persian text?

Accepted Answer

You should use ZWNJ (U+200C) to format prefixes and compound words correctly without creating visible gaps.

Question 5

Are both characters invisible on screen?

Accepted Answer

Yes, both U+200B and U+200C render with zero horizontal width, making them completely invisible to readers.

Zero Width Space vs Zero Width Non-Joiner

How to Use