63 professional-grade SEO, AI search, content, and developer tools. Every one runs right in your browser, instantly. No accounts. No limits. No surprises.
See if your page is ready to get cited by AI answer engines like ChatGPT and Google AI Overviews
Open Tool DevGenerate Luhn-valid test card numbers for Visa, Mastercard, Amex, and more, built for payment QA testing
Open Tool ContentCount characters with and without spaces, words, letters and SMS segments, and check your text against X, Instagram, SEO and SMS limits
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See if your page is ready to get cited by AI answer engines like ChatGPT and Google AI Overviews
Score your page on Experience, Expertise, Authority and Trust the way Google rates it
Rewrite any article into fresh, human-sounding content that passes AI detectors
Generate llms.txt instantly to help ChatGPT, Claude and Perplexity find and cite your best pages
Generate ready-to-use JSON-LD schema markup for rich snippets and AI search visibility
Build a valid sitemap.xml in seconds with full control over priority and change frequency
Generate, validate, and test a robots.txt file with built-in AI crawler controls
Generate accurate hreflang tags for multilingual sites in HTML, XML sitemap, or HTTP header format
Preview how your title and meta description will look in Google search results before you publish
Generate SEO, Open Graph, and Twitter Card meta tags with live search and social previews
Generate Luhn-valid test card numbers for Visa, Mastercard, Amex, and more, built for payment QA testing
Check A, MX, TXT, NS, and 6 more DNS record types with propagation and DNSSEC checks
Fetch, preview, and download any website's favicon in 7 sizes with a quality check
Encode and decode HTML entities with named, decimal, and hex formats plus XSS-safe modes
Look up any IP address for location, ISP, ASN, and network details, or find your own public IP
Format, validate, and minify JSON with error detection, tree view, and CSV/YAML conversion
Preview your Google Business Profile in the Local Pack and audit it against ranking factors
Generate placeholder text in paragraphs, sentences, words, or HTML with 6 selectable styles
Test Core Web Vitals and PageSpeed scores using Google's own API, with field data and fix priorities
Generate strong random passwords, passphrases, or PINs with a real-time strength meter
Generate QR codes for URLs, WiFi, contacts, and more with custom colors and error correction
Reverse text by characters, words, or lines instantly and check for palindromes
Convert any title into a clean SEO-friendly URL slug with platform presets and bulk conversion
Get instant word count, reading time, readability score, keyword density, and social media limits
Count characters with and without spaces, words, letters and SMS segments, and check your text against X, Instagram, SEO and SMS limits
Analyze keyword density, TF scores, bigrams, and trigrams to catch over-optimization before you publish
Solve CPM, ad cost or impressions from any two values, then see clicks, CPC, CPA, eCPM and vCPM
Convert binary to text and text to binary with UTF-8, ASCII and emoji support, plus hex, decimal and octal output
Remove duplicate words, lines, or sentences from any text with a full frequency breakdown
Write notes that autosave as you type, with word count, find and replace, and export to TXT, Markdown or PDF. No login, and notes stay in your browser.
Compare two texts side by side with word and character-level diff highlighting and a similarity score
Build a professional email signature with 8 layouts and a live preview. Copy it into Gmail or Outlook, or grab the HTML. Free, with no sign-up.
Resize photos by pixels, percent or target KB, with social media and print presets. Batch resize up to 50 images and download a ZIP. Files stay on your device.
Translate text to Morse code and back, play it as sound or flashing light, download audio and decode Morse from your microphone. Includes the full chart. Private.
Paste any list to shuffle it, pick random names, draw winners without repeats or split into teams. A fair Fisher-Yates shuffle that runs in your browser.
Split a list of names into fair random teams by team count or team size. Add captains, keep people apart and copy the result. Nothing is uploaded.
Draw Secret Santa names with exclusions and a budget, then share a private link with each person. No email, no account, nothing uploaded.
Make Code 128, Code 39, EAN-13, UPC-A and ITF-14 barcodes with check digits added for you. Download PNG or SVG, run bulk lists and print label sheets.
Convert time between any cities, EST, PST, UTC and GMT. See overlapping working hours and find a meeting time. Daylight saving is handled automatically.
Work out ROI, net gain, investment multiple and annualized return. Add fees, income and time held, or compare two investments side by side.
Test regular expressions with live matches, groups, replace and a plain-English explanation. Cheat sheet and common patterns included. Nothing is uploaded.
Format, minify and validate XML online. Errors show the exact line and column, and comments and CDATA are kept. Your XML never leaves your browser.
Turn text into cursive, script and gothic styles you can copy and paste into bios, names and captions. 12 styles, live preview and a phone preview.
Change the font of your Instagram bio, name and captions. 20 styles, a bio preview, a limits counter and favourites. Nothing is uploaded.
Create zalgo, creepy and cursed text with adjustable intensity, then copy it or clean it up again. Real Unicode text, not an image.
Make superscript, subscript and small caps text to copy and paste. Shows which letters have no small form, and turns H2O into H₂O.
Change text to uppercase, lowercase, title case, sentence case and code cases such as camelCase and snake_case. Title case styles, undo and download.
Test your typing speed in 1, 3, 5 or 10 minutes and see your net WPM, accuracy and a character level error report.
See how long your text takes to read or say aloud at slow, average, fast or custom speed, with a ready to copy "5 min read" label.
Scramble the letters or the order of words to make puzzles, worksheets and games, with an answer key you can show, print or download.
Get random words, sentences, letters and phrases, filtered by word type, length and first letter. Lock the ones you like.
Spin a wheel or pick instantly from a list of names. Draw several winners, split teams and keep a draw log.
Find the ratio of any size, or the missing width or height, with a live preview.
Calculate click-through rate from clicks and impressions, or work backwards.
Estimate YouTube earnings from views and RPM or CPM with a low to high range.
Generate random v4 and time-ordered v7 UUIDs, up to 1,000 at a time.
Make Discord time codes that show each member their own time zone.
Shrink HTML by removing comments and whitespace, with optional inline CSS and JS minifying.
Format and beautify SQL queries for MySQL, PostgreSQL, SQL Server and more.
Build a valid SPF TXT record for your domain with a live DNS lookup counter.
Group a keyword list into topic clusters and see search volume per cluster.
Turn text into big ASCII banners or convert a picture to ASCII art.
Check how easy your writing is to read with Flesch, SMOG, Gunning Fog and more, plus sentence-level tips.
Open one in your browser and start. Nothing to install, and your text stays on your device.

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