Free tools
Free tools that show how they got the answer.
Every website has two layers. The one your customers see, and the code underneath: titles, tags, structured data, links. That second layer is what Google and AI assistants read. These 74 tools show you what is in it. No account. No email wall.
- 41 tools run in your browser. Those files never leave your device.
- Every tool shows how it got its answer.
- Each tool states what it cannot tell you.
74 tools
Site audit
Read a page the way a search engine reads it, and see what it finds.
- How good is my website's SEO?Website SEO CheckerChecks one page against about 40 things that decide how search engines and AI assistants read it, shows the evidence for each, and writes the fix list as a prompt for your AI coding tool.Checks a live site
- How does my page look in search?Meta Tag AnalyzerShows the title, description and other meta tags of a page, and how the page will appear in a search result.Checks a live site
- How does my link look when shared?Open Graph CheckerShows how your link will look when it is shared on social and chat apps, and checks the picture it uses.Checks a live site
- How fast is my website?Page Speed TestTimes how fast your server answers and how heavy the page is, and shows which files slow it down.Checks a live site
- Does my website work on phones?Mobile-Friendly TestLoads your page on a phone-sized screen and shows what is too small, too wide or too crowded to use.Checks a live site
- Which words does my page use most?Keyword Density CheckerShows which words and phrases a page actually uses most, and where your target phrase appears.Checks a live site
- See the source code of any pageView Page SourceFetches any public page and shows the raw HTML and response headers a crawler receives.Checks a live site
Crawling and indexing
Can crawlers reach the page, and are they allowed to keep it?
- Can Google index my page?Google Index CheckerChecks common technical indexing blockers for up to 10 addresses, with an optional search lookup for the first three.Checks a live site
- How many pages can be indexed?Indexed Pages CheckerReads a site's sitemaps, samples the pages and reports how many can be indexed and what stops the rest.Checks a live site
- Is my site blocking search engines?Robots.txt Generator and TesterShows which search and AI crawlers your live robots.txt lets in, tests any address against it, and builds a new file rule by rule.Runs in your browser
- Create a sitemap for my websiteXML Sitemap GeneratorCrawls your site from the homepage and builds a sitemap.xml from the pages that can be indexed.Checks a live site
- Find my sitemap and list its pagesSitemap URL ExtractorFinds the sitemap of any website by itself and lists every page in it, with dates.Checks a live site
- See an older copy of a pageCached Page CheckerFinds the latest saved copy of a page in the public web archive, one of its earliest copies and its history month by month.Checks a live site
- Where does this link go?Redirect CheckerFollows an address hop by hop and shows every redirect, status code and delay on the way to the final page.Checks a live site
- Is my website online?HTTP Status Code CheckerChecks up to 25 addresses at once and reports the status code, final address and response time of each.Checks a live site
- Make an llms.txt file for my sitellms.txt GeneratorDrafts an llms.txt file for your site from the real titles and descriptions of up to 80 of your pages.Checks a live site
Keywords and rankings
What people type, how hard it is to rank, and where you stand today.
- What do people search for?Keyword Research ToolCollects live autocomplete suggestions about a topic, grouped into questions, comparisons and more.Checks a live site
- Find longer, more specific search phrasesLong-Tail Keyword GeneratorExpands a topic into autocomplete suggestions of three or more words.Checks a live site
- How hard is this keyword?Keyword Difficulty CheckerScores how hard a keyword is, out of 100, from the strength of the sites on the first page of a live search.Checks a live site
- Where does my website rank?Keyword Rank CheckerSearches each keyword live and reports where your domain appears, which page ranks and who is above you.Checks a live site
Links and authority
Who links to you, and how strong your site is next to others.
- Who links to my website?Backlink CheckerFinds pages that mention your domain, opens each one and reports the links that are really there today.Checks a live site
- How strong is my website?Domain Authority CheckerScores a domain from 0 to 100 by its position in the open web link graph, and shows the positions behind the score.Checks a live site
- How popular is this website?Website Rank CheckerShows a domain’s position in the Tranco popularity ranking and its movement over 30 days.Checks a live site
- Does my website look like spam?Spam Score CheckerChecks a site against 16 observable warning signs of a spam or low-quality site and shows the evidence for each.Checks a live site
Domain and server
Registration, hosting, location and uptime, read from the source.
- How old is this website?Domain Age CheckerReads the registration record and tells you when a domain was registered, to the day, and when it expires.Checks a live site
- Who hosts this website?Website Hosting CheckerShows which network answers for a website, and which CDN, DNS and email providers it uses.Checks a live site
- Where is this IP address?IP Location LookupShows the country, city, network owner and ASN of any IP address or domain, or of your own connection.Checks a live site
- Is this website down right now?Is It Down?Requests the website three times from outside your network and, if it fails, shows the step where it stopped.Checks a live site
- How quickly does my website respond?Website Ping TestTimes five requests to a site and breaks each one into DNS, connection, TLS and first byte.Checks a live site
- What browser am I using?What Is My Browser?Shows the browser, version, operating system, screen, language and public IP address your device reports.Runs in your browser
Tags and markup
The exact tags and structured data to paste into your pages.
- Write my page's title and descriptionMeta Tag GeneratorReads the title and description your page has now, lets you rewrite them against a live search preview, and gives you the tags or a prompt for your AI coding tool.Runs in your browser
- Make my link look good when sharedOpen Graph GeneratorReads your page, builds the share card from its title, text and pictures, and gives you the Open Graph tags or a prompt for your AI coding tool.Runs in your browser
- Make my link look good on XTwitter Card GeneratorReads your page, previews its card on X in the small and large layouts, and gives you the card tags or a prompt for your AI coding tool.Runs in your browser
- Tell search engines what my page isSchema Markup GeneratorReads your page, picks the schema type that fits, fills in what it finds and gives you the JSON-LD or a prompt for your AI coding tool.Runs in your browser
- Make a favicon from my logoFavicon GeneratorTurns your logo into every icon file browsers and phones ask for, plus the tags, in one ZIP.Runs in your browser
- Put a map on my websiteGoogle Maps Embed GeneratorMakes the embed code for a map of any address or place, sized the way you need, with a live preview.Runs in your browser
- Cite a website, article or bookCitation GeneratorCreates APA, MLA, Chicago and Harvard citations from a web page, a DOI or an ISBN, and lets you correct every field.Checks a live site
Writing
Check, tighten and reword text before it goes live.
- Check my grammar and spellingGrammar CheckerFinds spelling, grammar and punctuation mistakes and offers a fix for each, without your text leaving the browser.Runs in your browser
- Is my writing easy to read?Readability CheckerScores how easy your text is to read and highlights the sentences and words that make it harder.Runs in your browser
- Is my text copied from somewhere?Plagiarism CheckerSearches the web for sentences from your text, opens the pages it finds and shows which sentences appear there word for word.Checks a live site
- Rewrite my text in different wordsParaphrasing ToolRewrites your text in different words with the same meaning, in six modes from simpler to more formal.Browser + our server
- Shorten a long text to key pointsText SummarizerPicks the sentences that carry the most of a text and returns them in order, at the length you choose.Runs in your browser
- Turn speech or audio into textSpeech to TextTranscribes an audio file, or types what you say as you speak.Browser + our server
Text and code utilities
Small, exact jobs done in the browser.
- Change text to upper or lower caseCase ConverterChanges text to upper, lower, title, sentence, camel, snake or kebab case as you type.Runs in your browser
- Write and count words in a notepadOnline Text EditorA plain-text editor with live word and character counts, find and replace, sorting and a save button.Runs in your browser
- Make tiny text to copy and pasteSmall Text GeneratorTurns your text into small caps, superscript and subscript characters you can paste anywhere.Runs in your browser
- Find or copy invisible charactersInvisible Character FinderFinds hidden characters in text, shows what and where they are, removes them, and offers blank characters to copy.Runs in your browser
- Turn text into binary codeText to Binary ConverterEncodes text as binary, hexadecimal, decimal or Base64, live.Runs in your browser
- Turn binary code back into textBinary to Text ConverterDecodes binary, hexadecimal, decimal bytes or Base64 back into readable text.Runs in your browser
- Find an emoji and copy itEmoji PickerSearch 1,900 emoji by name, click to copy.Runs in your browser
- Make up names for testingFake Name GeneratorGenerates made-up identities for testing forms and databases: name, email, phone and address.Runs in your browser
- How old am I?Age CalculatorGives exact age in years, months and days from a date of birth, and the days until the next birthday.Runs in your browser
- Add up the hours I workedHours CalculatorAdds up hours worked across shifts, with breaks, and gives the total in hours and minutes and in decimal hours.Runs in your browser
- Check and format my JSONJSON Viewer and FormatterValidates JSON, shows the exact position of an error, formats or minifies it, and opens it as a tree.Runs in your browser
- See what my HTML looks likeHTML ViewerWrite or paste HTML and see it rendered next to the code, as you type.Runs in your browser
Image and video
Shrink, convert and read images and video. The files stay on your device.
- Make an image file smallerImage CompressorMakes JPEG, PNG and WebP images smaller on your own device, to a quality you set or a file size you need.Runs in your browser
- Make a JPG photo smallerCompress JPGMakes JPEG photos smaller, to a quality or an exact file size such as 100 KB or 200 KB.Runs in your browser
- Change an image to another formatImage ConverterConverts images between JPEG, PNG and WebP in your browser, with optional resizing.Runs in your browser
- Turn an SVG into a PNGSVG to PNG ConverterTurns an SVG file into a PNG, JPEG or WebP image at the pixel size you choose.Runs in your browser
- Copy the text out of a pictureImage to Text (OCR)Reads the text in a photo, scan or screenshot, in your browser, in over 30 languages.Runs in your browser
- Translate the text in a pictureImage TranslatorReads the text in an image and translates it into the language you choose.Browser + our server
- Turn a picture into a Word documentJPG to Word ConverterReads the text in an image and saves it as an editable Word document.Runs in your browser
- See the hidden data in a photoImage Metadata ViewerShows the hidden data inside a photo: camera, date, GPS location, editing software and AI-generation markers.Runs in your browser
- Make a GIF from a videoVideo to GIF ConverterTurns a clip from a video into an animated GIF in your browser, with the length, size and frame rate you choose.Runs in your browser
- Check a video file before publishingVideo SEO CheckerReads a video file's header and writes the VideoObject markup that tells search engines what the video is.Runs in your browser
Merge, split, compress and protect PDFs on your own device.
- Combine PDF files into oneMerge PDFJoins PDFs into one file in the order you set, on your own device.Runs in your browser
- Pull pages out of a PDFSplit PDFPulls pages out of a PDF: by ranges, every few pages, or one file per page.Runs in your browser
- Turn the pages of a PDFRotate PDFTurns all or some pages of a PDF by 90, 180 or 270 degrees and saves the result.Runs in your browser
- Make a PDF file smallerCompress PDFMakes a PDF smaller by recompressing the images inside it, with size targets from 50 KB to 2 MB.Runs in your browser
- Turn PDF pages into picturesPDF to JPGTurns each page of a PDF into a JPG or PNG image at the resolution you choose.Runs in your browser
- Copy the text out of a PDFPDF to TextExtracts the text from a PDF, page by page, as plain text or an editable Word document.Runs in your browser
- Put a password on a PDFProtect PDFEncrypts a PDF with a password using AES-256, in your browser.Runs in your browser
- Remove the password from a PDFUnlock PDFRemoves the password and restrictions from a PDF when you know the password.Runs in your browser
- Pack PDF files into one ZIPPDF to ZIPPacks PDFs, or any files, into a single ZIP archive in your browser.Runs in your browser
Found something. Let RankBrain fix it.
The tools show findings to review. RankBrain gives your AI guidance for code changes. Review the proposal, keep a backup and test before publishing; your AI tool’s approval settings control changes.