Turning a natural-language title into a clean, URL-safe slug — lowercase, hyphenated, no special characters — is a small but genuinely necessary transformation behind nearly every blog post and product page URL on the web. This tool converts any text into a properly formatted slug.
The narrow character set URLs have always technically required
URLs have never freely accepted every possible character — the original URL specification, formalized in the early-to-mid 1990s, defined a limited set of characters considered safe to include directly, with anything else (spaces, punctuation, non-Latin characters) requiring percent-encoding to be represented correctly and unambiguously. Rather than dealing with unwieldy percent-encoded URLs full of "%20" in place of spaces, the web development convention of manually converting text into a clean "slug" — lowercase, hyphen-separated, stripped of special characters — emerged specifically to produce genuinely clean, readable, directly typeable URLs instead of leaning on raw percent-encoding for ordinary page titles.
How this tool converts text to a slug
The tool takes your input text, converts it to lowercase, replaces spaces with hyphens, removes punctuation and special characters entirely, and typically converts accented or non-Latin characters to their closest plain-ASCII equivalent — producing a clean, URL-safe string that avoids needing any percent-encoding at all while remaining directly readable to a human glancing at the URL.
Where converting text to a slug is genuinely useful
- Publishing blog posts, articles or pages — generating a clean URL directly from a page's natural-language title, the most common and frequent use case for this exact conversion.
- Creating consistent file or folder naming conventions — applying the same clean, special-character-free naming convention to files or folders based on a descriptive title.
- Building custom content management or publishing systems — developers building any system that generates URLs from user-entered titles need exactly this conversion logic.
- Cleaning up existing, poorly formatted URLs — converting messy, parameter-heavy or special-character-laden URLs into a cleaner, more standard slug format.
Frequently asked questions
Why do slugs use hyphens instead of underscores? Hyphens are the generally preferred, widely recommended convention, since search engines have historically treated hyphens as clear word-boundary separators, while underscores can sometimes be interpreted as joining words together into a single term rather than separating them — making hyphens the safer default choice for both SEO and general readability.
What happens to accented or non-English characters when converting to a slug? Most slug generators convert accented characters to their closest plain-ASCII equivalent (like é becoming e) rather than simply stripping them entirely, preserving as much of the original word's readability as possible within a technically safe, universally compatible character set.
Should a slug include every word from the original title? Not necessarily — many slug generation conventions optionally strip common, low-value filler words ("a," "the," "and") to keep the resulting slug more concise, though this is a stylistic choice rather than a strict technical requirement, and including every word is also perfectly valid.
Further reading
Wikipedia — Clean URL — The history and rationale behind clean, slug-based URL conventions.
RFC 3986 — URI Generic Syntax — The formal specification defining which characters are safe within a URL without encoding.