Do I need to install software or create an account?

No. Everything runs in your web browser on Windows, Mac, Android and iPhone – there is nothing to download, nothing to install and no account to create.

Website Management Tools

Q: Is there a limit on how often I can use these tools?

You can use the tools as often as you need for normal everyday tasks. Very large files or extreme usage may be limited to keep the service fast for everyone.

Gratis webbansvarigverktyg för SEO-poäng, XML-webbplatser, omdirigeringar, HTTP-huvuden, QR-koder, minifierare och mobiltester. Snabbt, gratis och enkelt att använda.

Free Webmaster Tools – SEO, Sitemap & Speed

🧰 25 free tools
💸 100% free
🔓 Ingen registrering
📱 Fungerar på alla enheter
🔒 Secure HTTPS

Webmaster tools help you build, optimise and maintain a website – from SEO audits and sitemaps to redirects, minification and QR codes.

All free webmaster tools on pdfseotools.com

All 25 Free Website Management Tools

▦ All tools☰ Compare⭐ Featured

Verktyg	What it does	Input / Best for
WordPress Temadetektor	Find out which WordPress theme and plugins any website is using	URL or code → result
Twitter Card Generator	Generate Twitter (X) Card meta tags so your links show a rich preview with image, title and description	URL or code → result
Open Graph-generator	Create Open Graph meta tags for perfect link previews on Facebook, WhatsApp, LinkedIn and more	URL or code → result
Online HTML Viewer	View and test HTML code online with a live preview	URL or code → result
XML Formatter	Format and beautify XML online with proper indentation	URL or code → result
Kontroll av webbplatsens SEO-poäng	Check the SEO score of any website for free and get a detailed report with fixes	URL or code → result
Webbplats skärmdumpsgenerator	Capture full screenshots of any website online in seconds	URL or code → result
Online Ping Website Tools	Ping your website and notify search engines and blog directories about new content	URL or code → result
URL-kodare Avkodare	Encode and decode URLs online	URL or code → result
Base64-kodning/avkodning	Encode text to Base64 and decode Base64 back to text online	URL or code → result
QR-kodgenerator	Create free QR codes for URLs, text, Wi-Fi, phone numbers and more	URL or code → result
HTML Editor	Write, edit and preview HTML online with a live editor	URL or code → result
HTML Minifier	Minify HTML code to reduce page size and speed up your website	URL or code → result
Javascript Minifierare	Minify JavaScript code online to make files smaller and faster to load	URL or code → result
CSS Minifier	Minify CSS code online to reduce stylesheet size and improve page speed	URL or code → result
URL-öppnare	Open multiple URLs at once in new tabs with one click	URL or code → result
XML Sitemap Generator	Generate an XML sitemap for your website and help Google crawl all your pages	URL or code → result
Get HTTP Header	Check the HTTP response headers of any URL – status code, cache, security and redirect headers	URL or code → result
Htaccess Redirect	Generate .htaccess redirect rules for www, non-www and HTTPS	URL or code → result
Mobilvänlighetstest	Test whether your website is mobile friendly and see how it looks on phones	URL or code → result
Adsense-kalkylator	Estimate your Google AdSense earnings based on page views, CTR and CPC	URL or code → result
Skärmupplösningssimulator	Preview your website at different screen resolutions and device sizes	URL or code → result
Massutskick E-postvaliderare	Validate email addresses in bulk to check syntax and domain mail servers	URL or code → result
Bilibili Video Downloader	Download Bilibili videos online by pasting the video link	URL or code → result
Dailymotion Video Downloader	Download Dailymotion videos online by pasting the video URL	URL or code → result

WordPress Temadetektor

The detector scans a site's public source code to identify the WordPress theme name, author and visible plugins – handy when you like a design.

Open WordPress Theme Detector →

Twitter Card Generator

Twitter Cards control how your page looks when shared on X. A rich card with an image gets more clicks than a plain link.

Open Twitter Card Generator →

Open Graph-generator

Open Graph tags (og:title, og:image, og:description) tell social platforms what to display when someone shares your URL.

Open Open Graph Generator →

Online HTML Viewer

An HTML viewer renders your code in the browser so you can see how it looks without creating files or a server.

Open Online HTML Viewer →

How to Use Our Website Management Tools

Enter the URL, code or details requested by the tool.
Select any options shown on the page.
Click the main button to run the tool.
Review, copy or download the result.

Website Management Tools – Quick Reference

Status code	Betydelse	SEO effect
200	OK – page loaded	Indexable
301	Flyttad permanent	Passes ranking signals
302	Flyttad tillfälligt	Original URL kept
404	Hittades inte	Remove or redirect
500	Serverfel	Fix quickly

Why Use Our Webmaster Tools?

Made for webmasters Solves everyday website tasks in one place.
Fast results Get output or reports in seconds.
Free Use the tool at no cost.
No technical setup No plugins or server access needed to try it.
Works on any device Desktop, tablet and mobile supported.
SEO friendly Helps you build faster, cleaner and better-optimised websites.

Tips for Using Website Management Tools

Test changes on a staging site before going live.
Keep a backup of files before you replace them.
Re-run the tool after every major update.
Combine it with our SEO Score Checker for a complete audit.

Website Management Tools – Worked Example

Example: a site can be opened at four addresses – http, https, with and without www. Adding a 301 redirect in .htaccess sends every version to https://www.yoursite.com, so search engines see one preferred URL instead of four duplicates.

Website Management Tools Glossary

Sitemap: An XML file listing the URLs you want search engines to crawl.
301 redirect: A permanent redirect that passes ranking signals to the new URL.
Minification: Removing unnecessary characters from code to reduce size.
HTTP headers: Information a server sends with every response, such as status and caching.
Core Web Vitals: Google's page experience metrics for loading, interactivity and visual stability.

Helpful Guides for Website Management Tools

Vanliga frågor

Are these webmaster tools free?

Yes. Every tool in this category is free to use on pdfseotools.com with no sign-up.

Do the tools work on mobile?

Yes. They work in any modern browser on Android, iPhone, Windows and Mac.

Is my data safe?

Yes. Connections use HTTPS and uploaded files are removed after processing.

Behöver jag installera programvara eller skapa ett konto?

Nej. Allt körs i din webbläsare på Windows, Mac, Android och iPhone – det finns inget att ladda ner, inget att installera och inget konto att skapa.

Is there a limit on how often I can use these tools?

Du kan använda verktygen så ofta du behöver för normala dagliga uppgifter. Mycket stora filer eller extrem användning kan begränsas för att hålla tjänsten snabb för alla.

Where can I find more free tools?

Open the menu or the categories on pdfseotools.com to browse 150+ free tools for PDFs, images, text, SEO and development.