Keyword Extractor - Online Rapid Text Analysis
Paste any article and get a list of the most relevant keywords using a simple TF‑IDF‑like model. Skip stop words. All local.
UD5 Toolkit
Analyze keyword frequency in your text to improve on-page SEO. Paste your content and instantly get density metrics.
| Keyword | Count | Density % |
|---|
Paste any article and get a list of the most relevant keywords using a simple TF‑IDF‑like model. Skip stop words. All local.
Enter a URL and get a one‑page report of titles, description, headings, image alts, and broken links. All from browser.
Paste text to compute reading ease and grade level using Flesch-Kincaid, SMOG, and ARI. Improve your writing clarity. All in browser.
Analyze text for screen reader friendliness: detect vague link text, missing alt suggestions. Get a report. Local.
Fetch a page and list all loaded assets (CSS, JS, images) with their sizes. See total page weight. Quick performance check.
Enter a URL and extract meta title, description, OG tags into a readable format. Works via frontend proxy or user pastes HTML. Local.
Paste your email body and subject, and get a spam score based on common trigger words and patterns. Improve your cold outreach.
Fetch and extract all meta tags, open graph tags, and Twitter cards from a live URL. No server proxy, direct browser fetch.
Enter a URL and fetch its text/background colors to perform a bulk contrast check. See warnings for WCAG violations.
Paste text, highlight important parts, and extract only highlights. Great for research and studying. Entirely client-side.
Analyze text for subjective and emotionally charged words. Helps identify potential bias in writing. Purely heuristic, local operation.
Measure your typing speed in words per minute and accuracy. Random word prompts. Compare results over time. No data sent.
Find out if a word is an isogram (no repeating letters). Different types: first-order, second-order. Word nerd fun.
Paste text with mixed Arabic/Hebrew and English. See the Unicode bidi class of each character and ordering. i18n debugger.
Paste text and get a rough analysis of its emotional tone (happy, sad, angry, etc.) based on keyword matching. Local.
Paste HTML or Markdown to count total words, unique words, heading distribution, and reading time. Content audit helper.
Compare two text blocks and highlight differences line by line. Ideal for code review and document revisions. All diffs computed locally for privacy.
Analyze letter/symbol frequency with an interactive bar chart and heatmap. Useful for breaking simple ciphers, linguistics, and SEO keyword analysis. Local processing.
Enter megapixels and desired DPI to see the maximum print size without upscaling. Quick quality check.
Compute multiple readability scores (Flesch Reading Ease, Grade Level, ARI, SMOG). Paste any English text and see which grade level it's suitable for. Local.
Check if the current page can be loaded offline by examining the service worker cache. Developer tool for PWAs.
Paste a Content‑Security‑Policy header and get a human‑readable breakdown. See potential risks and suggestions.
Enter a URL and extract the font stacks and web font URLs used on that page. Quick typography research.
Compare text‑rendering: auto, optimizeSpeed, optimizeLegibility, geometricPrecision. See kerning and ligature changes live.
Drop a PDF and count the total words, characters, and pages. Text extraction is done locally. Privacy‑friendly.
Enter hole saw diameter and material to find the recommended RPM and feed pressure. Prevent burning and kickback.
Measure your internet connection speed by downloading and uploading a small test file. Works from your browser.
Convert English words into their International Phonetic Alphabet (IPA) representation. For pronunciation learning. Local.
Enter a URL and click to check if it's reachable from your browser (CORS-limited, uses no-cors fetch). Quick manual test. Local only.
Convert torque units between Newton-meter, foot-pound, inch-pound, and more. Essential for mechanics and engineers. Instant local conversion.