What is a URL slug?

A slug is the part of a URL that identifies a specific page in a readable way, like /blog/my-post-title. Slugs are lowercase, use dashes or underscores instead of spaces, and drop punctuation and special characters.

Does this tool work offline or send my text anywhere?

No text ever leaves your browser. The slug is generated entirely with client-side JavaScript, so nothing is uploaded, logged, or stored.

Should I use a dash or an underscore as a separator?

Dashes are the standard recommendation for SEO — search engines treat a dash as a word boundary but generally do not split words on an underscore. Use underscores only if a specific platform or convention requires them.

What happens to Chinese, Japanese, or Arabic characters?

Characters outside the Latin alphabet that have no direct ASCII equivalent — including Chinese, Japanese, Korean, and Arabic script — are dropped rather than guessed at, since automatic transliteration is often inaccurate. If your title is entirely in one of these scripts, we recommend writing a short manual romanization (e.g. pinyin for Chinese, romaji for Japanese) before slugifying it.

Can I convert a whole list of titles at once?

Yes — turn on Bulk Mode and paste one title per line. Each line is converted to its own slug, in the same order, ready to paste into a spreadsheet or CMS import.

Do slugs actually affect SEO?

Yes, in a small but real way. Short, descriptive, keyword-relevant slugs are easier for both users and search engines to read, and they hold up better when a page is shared or linked to than a long string of random characters or query parameters. They aren't a major ranking factor on their own, but they support click-through rate and user trust.