Free Online Slug Generator & String Utilities
Turn a title or any text into a clean, SEO-friendly URL slug, and see instant character, word, line, and byte-size stats — plus tools to sort lines or remove duplicates. It helps content teams and developers turn article titles or labels into readable, URL-safe permalinks.
What makes a good URL slug?
A URL slug is the human-readable part of a web address that identifies a specific page — for example, the best-json-tools-2026 in example.com/blog/best-json-tools-2026. Good slugs are lowercase, use hyphens instead of spaces, avoid special characters and accents, and stay reasonably short and descriptive — both for readability and because search engines treat slug words as a signal of what the page is about.
How to generate a slug
Type or paste your title or text into the input box — the slug updates instantly below. Accented characters are converted to their plain equivalents (é becomes e), anything that isn't a letter, number, or hyphen is stripped, and spaces and underscores are replaced with hyphens.
String utilities
Beyond slug generation, this tool doubles as a quick text analyzer: character count (with and without spaces), word count, line count, and byte size (the UTF-8 encoded size, which can differ from character count for non-ASCII text). Use Sort Lines to alphabetize a list, or Remove Duplicate Lines to deduplicate a pasted list while keeping the first occurrence of each line.
Common use cases
- Generating a URL-safe slug from a blog post or product title
- Checking whether a piece of copy fits a character limit (a tweet, a meta description, a form field)
- Cleaning up a pasted list of emails or values by sorting and removing duplicates
How to use Slug Generator for related tasks
Paste a title, generate the slug, and review transliteration, duplicate words, and trailing separators before publishing the URL.
Related tools: Case Converter, URL Parser.
Frequently asked questions
What makes a good URL slug?
Lowercase letters, numbers, and hyphens only — no spaces, punctuation, or special characters. This tool automatically strips accents (é becomes e), removes anything that isn't alphanumeric, and replaces spaces and underscores with hyphens.
Why does the byte size differ from the character count?
Character count is the number of Unicode characters; byte size is how many bytes that text takes up when UTF-8 encoded. They're the same for plain ASCII text, but any accented letter, emoji, or non-Latin character takes more than one byte, so byte size can be noticeably larger.
Does sorting lines consider capitalization?
Yes — sorting uses standard locale-aware string comparison, so "Apple" and "apple" sort based on their actual character codes/locale rules rather than being treated as identical.
How does duplicate line removal decide what counts as a duplicate?
An exact, case-sensitive match — two lines are only removed as duplicates if their entire content matches exactly, including capitalization and whitespace. The first occurrence of each line is kept.
What makes an SEO-friendly URL slug?
Use concise descriptive words, lowercase separators, and stable wording; avoid stuffing every possible keyword into a permalink.