Free Online SEO & Marketing Tools

Free Online SEO & Marketing Tools

ToolRux offers 15 free online SEO and marketing tools designed for speed and simplicity. Generate meta tags, preview Open Graph cards, build UTM campaign links, create QR codes, analyze keyword density, and configure robots.txt — all without installing anything or creating an account.

Meta Tags & Social Previews

Optimize how your pages appear in search results and on social media:

• Meta Tag Generator — Generate complete SEO meta tags with live Google search preview and social card previews. Set title, description, canonical URL, robots directives, Open Graph tags, and Twitter Card data. Includes character count guidance for optimal title (50-60 chars) and description (120-160 chars) lengths.
• Open Graph Preview — See exactly how your pages will appear when shared on Facebook, Twitter, LinkedIn, and Google. Preview both Twitter Summary and Summary Large Image card formats. Get the ready-to-paste OG and Twitter meta tags for your pages.
• SERP Preview — Preview how your page will look in Google search results with title, URL, and description formatting. Optimize for click-through rates.
• Schema / JSON-LD Generator — Generate structured data markup for articles, products, FAQs, organizations, and more to enhance your search result appearance with rich snippets.

Campaign & Link Tools

Track marketing campaigns and generate scannable links:

• UTM Link Builder — Build campaign-tracked URLs with all 5 UTM parameters (source, medium, campaign, term, content). Quick presets for Google Ads, Facebook, Twitter, LinkedIn, Email, and Newsletter campaigns. Copy the final URL or see a breakdown of each parameter.
• QR Code Generator — Generate QR codes for URLs, Wi-Fi credentials, email addresses, phone numbers, SMS, vCards, and geo coordinates. Customize error correction level (L/M/Q/H), size (200–1024px), margin, foreground and background colors. Download as PNG or SVG.
• Slug Generator — Convert any text into clean, URL-friendly slugs for blog posts, pages, and SEO-friendly URLs.

Content & Crawling Tools

Analyze your content and control search engine access:

• Keyword Density Checker — Paste your content and instantly see word count, character count, sentence count, paragraph count, and estimated reading time. View top single-word, two-word, and three-word phrases ranked by frequency and density. Track specific target keywords with visual density indicators and stop word filtering.
• Robots.txt Generator — Build a valid robots.txt file with a visual editor. Add multiple rules for different user agents (Googlebot, Bingbot, AI bots like GPTBot and ChatGPT-User). Set disallow/allow paths, crawl delay, and sitemap URL. Use quick presets for common configurations (Allow All, Block All, Block AI Bots, Standard). Copy or download the generated file.
• Sitemap Generator — Generate XML sitemaps for your website by entering URLs, setting priorities, change frequencies, and last modified dates.
• Redirect Checker — Check URL redirect chains and status codes to identify redirect loops, broken redirects, and unnecessary hops.
• Hreflang Tag Generator — Generate hreflang tags for multilingual and multi-regional sites to help search engines serve the right language to the right audience.
• Backlink Checker — Analyze backlink profiles with anchor text, link type, and domain authority metrics.

Content Quality Tools

• Headline Analyzer — Score your headlines for SEO effectiveness, emotional impact, word balance, and click-through potential.
• Email Subject Line Tester — Test and optimize email subject lines for open rates with character count, word analysis, and deliverability checks.

Looking for developer tools like JSON formatters or regex testers? Check out our Developer Tools. Need design tools? Try our Design Tools.

Why Use ToolRux SEO Tools?

• 100% Free — Every SEO tool is completely free to use, no sign-up required.
• Privacy First — All processing happens in your browser. Your content and data never leave your device.
• Copy-Ready Output — Get production-ready HTML meta tags, robots.txt files, UTM URLs, and downloadable QR codes with one click.
• Mobile Friendly — Fully responsive design works perfectly on phones, tablets, and desktops.
• Dark Mode — Easy on the eyes with automatic dark mode support across all tools.
• Shareable Links — Tool settings are saved in the URL so you can share or bookmark your exact configuration.

Frequently Asked Questions

Are these SEO tools really free?

Yes — every SEO and marketing tool on ToolRux is completely free to use with no account required and no usage limits.

Is my data safe when using these tools?

Absolutely. All processing happens entirely in your browser. Your content, URLs, and marketing data are never uploaded to any server.

What meta tags does the Meta Tag Generator create?

The generator creates title tags, meta descriptions, canonical URLs, robots directives (index/noindex, follow/nofollow), Open Graph tags (og:title, og:description, og:image, og:url, og:type), and Twitter Card tags (twitter:card, twitter:title, twitter:description, twitter:image).

What QR code formats are supported?

The QR Code Generator supports URLs, plain text, Wi-Fi credentials (WPA/WEP), email addresses (mailto:), phone numbers (tel:), SMS messages (smsto:), vCards (contact cards), and geographic coordinates (geo:). QR codes can be downloaded as PNG or SVG files.

What error correction levels are available for QR codes?

Four levels are available: Low (L) recovers 7% of data, Medium (M) recovers 15%, Quartile (Q) recovers 25%, and High (H) recovers 30%. Higher levels make QR codes more readable when partially damaged but increase the code density.

What are UTM parameters?

UTM (Urchin Tracking Module) parameters are tags added to URLs to track the effectiveness of marketing campaigns. The five parameters are: source (where traffic comes from), medium (marketing channel), campaign (campaign name), term (paid search keywords), and content (differentiates similar content or links).

How does the Keyword Density Checker work?

Paste your content and the tool instantly analyzes word frequencies. It shows the top single-word, two-word, and three-word phrases with their counts and density percentages. You can also track specific target keywords and toggle stop word filtering for more relevant results.

What user agents does the Robots.txt Generator support?

The generator supports all major bots including Googlebot, Bingbot, DuckDuckBot, Yandex, Baidu, plus AI crawlers like GPTBot, ChatGPT-User, Google-Extended, Anthropic, and CCBot. You can also enter custom user agent strings.

Can I share my tool settings with someone?

Yes. All tools save their settings in the URL. Simply copy the URL from your browser address bar and share it — the recipient will see the exact same configuration.