Slugify — URL Slug Generator

Convert a title or phrase into a clean, URL-safe slug — accents and Unicode folded to ASCII, lowercased, spaces and punctuation collapsed to hyphens. Runs entirely in your browser, no server, no sign-up.

What this tool does

Turn a title, heading, or any phrase into a clean, URL-safe slug — the lowercase, hyphenated string you put in a permalink, like /blog/10-tips-for-creme-brulee. Everything runs locally in your browser: nothing is sent to a server, it works offline, and there's no sign-up.

Type a Title or phrase and the slug updates instantly. Optionally change the Separator, keep the original case, or set a Max length.

How a slug is built

Transliterate to ASCII — accents and non-Latin scripts are folded to their closest ASCII letters, so Crème Brûlée becomes creme-brulee and 北京 becomes bei-jing.
Drop apostrophes — contractions and possessives join up, so Bob's becomes bobs, not bob-s.
Lowercase (optional, on by default).
Collapse separators — every run of spaces and punctuation becomes a single separator, with no leading or trailing separator.

Options

Option	What it does
Separator	The character between words — `-` (default) for a classic kebab-case slug, or `_` for snake_case. Any non-alphanumeric string works.
Lowercase	On by default. Turn it off to keep the original capitalisation (e.g. `Hello-World`).
Max length	`0` means no limit. A positive value truncates the slug on a word boundary so it never cuts a word in half.
Slugify each line separately	Off by default. Turn it on and put one title per line to slugify a whole batch at once — each line becomes its own slug.

Examples

Input	Settings	Slug
`Hello, World!`	defaults	`hello-world`
`10 Tips for Crème Brûlée!`	defaults	`10-tips-for-creme-brulee`
`Münchner Straße`	defaults	`munchner-strasse`
`Bob's Burgers`	defaults	`bobs-burgers`
`北京`	defaults	`bei-jing`
`Hello World Test`	separator `_`	`hello_world_test`
`Keep The Case`	lowercase off	`Keep-The-Case`
`The Quick Brown Fox`	max length 13	`the-quick`
`Hello World` `Foo & Bar`	slugify each line	`hello-world` `foo-bar`

FAQ

Is it free and private?

Yes — your text never leaves your device, and the tool keeps working offline once the page has loaded.

What's a slug?

It's the readable, URL-safe part of a web address that identifies a page, such as creme-brulee-recipe in example.com/recipes/creme-brulee-recipe. Slugs use only lowercase letters, digits, and hyphens, which is friendly for both readers and search engines.

How are accented and non-Latin characters handled?

They're transliterated to the closest ASCII equivalent — é→e, ñ→n, ß→ss, and scripts like Chinese, Cyrillic, or Greek are romanised — so the slug stays plain ASCII.

Can I use underscores instead of hyphens?

Yes — set the Separator to _ (or any non-alphanumeric character) to change the word separator.

Does it limit the length?

Only if you want it to. Set Max length to a positive number and the slug is trimmed on a word boundary so words aren't cut in half; leave it at 0 for no limit.

Developer & Automation Access

Run it from the terminal

Same engine as this page, headless — via the gizza CLI:

gizza tool slugify "10 Tips for Crème Brûlée!"

New to the CLI? Get gizza →

Open it by URL

Pre-fill and auto-run this tool with query parameters — the names match the API/CLI:

https://gizza.ai/tools/slugify/?text=10%20Tips%20for%20Cr%C3%A8me%20Br%C3%BBl%C3%A9e%21&separator=-&lowercase=true&max_length=0&per_line=true

Machine-readable descriptor: tool.json — title + parameters JSON Schema for agents.