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Tool Category Map

A quick view of the 28 tools grouped by category. Click a bar to filter tools.

Count words, chars, reading time

UPPER, lower, camelCase & more

Lorem Ipsum Generator

Generate placeholder text

Flip text chars or words

Beautify & validate JSON

Encode or decode Base64

Encode/decode URL strings

Escape HTML entities

Test regex patterns live

MD5, SHA-256, SHA-512

Color Converter

HEX, RGB, HSL, CMYK

CSS Gradient Maker

Build gradients visually

Password Generator

Cryptographically strong

Length, weight, temp, speed

Exact age in years/days

Body mass index checker

Random Number Gen

Generate random numbers

Meta Tag Generator

OG, Twitter, SEO tags

Timestamp Converter

Unix ↔ readable date

Decode JWT header & payload

Random UUID v4 in bulk

Compare two texts line by line

SEO-friendly URL slugs

Latest practical guides

Short explainers for the problems people search before opening a tool.

All guides →

Text Title Case vs Sentence Case Know which style to use in headings, buttons, filenames and code. Developer URL Encoding Query Parameters Fix broken links with spaces, ampersands, hashes and Unicode. Math Unit Conversion Formulas Convert metric, imperial, temperature and speed without guessing. Health BMI Formula Metric and Imperial Calculate adult BMI and understand why it is only a screening number. Finance Loan Payment Formula Estimate monthly payment, total interest and full repayment cost. Developer Convert JSON to CSV Prepare JSON arrays for Excel, Google Sheets and database imports.

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Free Online Tools for Developers & Productivity

ToolZone is a curated collection of 28 free online tools for developers, designers, writers, and everyday productivity. Every tool runs entirely in your browser — no signup, no uploads. Your tool input never leaves your device.

Format and validate JSON, generate strong passwords, encode and decode Base64 or URLs, test regular expressions, convert colors, build CSS gradients, calculate BMI or age, generate Lorem Ipsum, hash text with MD5 or SHA-256, and more — all from a single fast, private, dark-themed workspace.

Whether you're a developer needing quick utilities, a designer working with colors and gradients, or a writer counting words and characters, ToolZone gives you instant, low-clutter access to professional-grade web tools that work offline once loaded.

Free Slug Generator — Clean SEO URL Slugs

Convert headlines, product names or article titles into clean, lowercase, hyphenated URL slugs that search engines and humans can read. Accents are transliterated, punctuation is stripped and you control the separator and word limit.

Features

Hyphen or underscore separator
Word-limit option for short, keyword-focused URLs
Transliterates accented and non-ASCII characters
Instant copy for your CMS or router

How to use

Step 1. Paste your title or heading.
Step 2. Choose separator and optional word limit.
Step 3. Copy the generated slug into your CMS or route.

Real use case: publishing French and Arabic articles with clean URLs

A bilingual blog publishes "Créer une stratégie SEO en 2026". Pasting the title straight into the CMS produces a URL full of percent-encoded accents that looks broken when shared and gets truncated in search results.

The slug generator returns creer-une-strategie-seo-en-2026 — readable, shareable and keyword-bearing. The editorial team standardises on generating the slug before publishing, because changing a URL later means setting up redirects and losing accumulated ranking signals.

How Slug Generator works

The title is Unicode-normalised (NFD) and combining marks are stripped, so é becomes e and ü becomes u rather than being dropped. Remaining non-alphanumeric characters collapse into a single separator, leading and trailing separators are trimmed, and the whole string is lowercased.

Optional word limiting keeps the first N meaningful words, and stop-word removal drops filler like "the", "a" and "de" so the slug stays short and keyword-dense.

Hyphens are the default separator because search engines treat them as word boundaries while underscores join words together — a small choice that affects how the URL is tokenised.

Slug Generator vs similar tools

Slug generation options compared:

Tool	How it works	Trade-off
CMS auto-slug (WordPress)	Derives the slug from the title on save.	Keeps stop words and can produce very long URLs; non-Latin titles may become empty or encoded.
slugify npm package	Programmatic slugs in your build or API.	The right answer inside an app; not helpful when an editor just needs one slug now.
ToolZone Slug Generator	Paste a title, control separator, word limit and stop words, copy the slug.	Manual per title, and it cannot check whether the slug already exists on your site.

Frequently Asked Questions

How long should a URL slug be?

Keep it short and descriptive — usually 3 to 5 meaningful words. Long slugs get truncated in search results and are harder to share.

Hyphens or underscores in URLs?

Google treats hyphens as word separators and underscores as joiners, so hyphens are the SEO-safe choice.

Related SEO tools

Guides worth reading

Browse all ToolZone guides →