Text Readability Scorer - Online Flesch-Kincaid & ARI Calculator
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.
UD5 Toolkit
Flesch-Kincaid Reading Ease, Grade Level & SMOG Index
Paste your English text below to instantly analyze its readability score. No data is sent to any server.
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.
Analyze text for keyword frequency and density. Highlights over-optimized terms. Perfect for content writers and SEO editors. Entirely browser-based.
Track freezer contents with type, date frozen. See what's been in too long. Simple grid view. Data local.
Fetch a page and list all loaded assets (CSS, JS, images) with their sizes. See total page weight. Quick performance check.
If your device has a barometer, read the pressure and see trend analysis for short-term weather prediction. Fully local sensor access.
Paste any article and get a list of the most relevant keywords using a simple TF‑IDF‑like model. Skip stop words. All local.
Measure your typing speed in words per minute and accuracy. Random word prompts. Compare results over time. No data sent.
Enter hole saw diameter and material to find the recommended RPM and feed pressure. Prevent burning and kickback.
Analyze letter/symbol frequency with an interactive bar chart and heatmap. Useful for breaking simple ciphers, linguistics, and SEO keyword analysis. Local processing.
Build a virtual grocery list with estimated prices and see total before you shop. Adjust quantities, mark bought items. Data stays in browser.
Paste text and get a rough analysis of its emotional tone (happy, sad, angry, etc.) based on keyword matching. Local.
Enter a URL and extract the font stacks and web font URLs used on that page. Quick typography research.
Estimate filament usage: enter weight or length and get the remaining value plus cost. PLA/ABS density reference. Local calculation.
Adjust recommended tire pressure for extra load or high speed. Simple reference chart.
Enter a URL and get a one‑page report of titles, description, headings, image alts, and broken links. All from browser.
Convert torque units between Newton-meter, foot-pound, inch-pound, and more. Essential for mechanics and engineers. Instant local conversion.
Paste a Content‑Security‑Policy header and get a human‑readable breakdown. See potential risks and suggestions.
Enter a URL and fetch its text/background colors to perform a bulk contrast check. See warnings for WCAG violations.
Record shot distances for each club and see averages. Identify gaps in your bag. Local storage.
Breakdown of expected costs (materials, appliances, etc.) for a tiny house. Adjust percentages or enter custom. Local calculation.
Convert fuel economy units between miles per gallon (US/UK), liters per 100 km, and kilometers per liter. Useful for international car comparisons.
Based on desired annual income and billable days, calculate your minimum day rate. Don't undercharge.
Paste text, highlight important parts, and extract only highlights. Great for research and studying. Entirely client-side.
Compare two text blocks and highlight differences line by line. Ideal for code review and document revisions. All diffs computed locally for privacy.
Analyze text for screen reader friendliness: detect vague link text, missing alt suggestions. Get a report. Local.
Enter your snake's weight and species to get recommended rodent size and feeding frequency. Avoid under/overfeeding.
Paste your email body and subject, and get a spam score based on common trigger words and patterns. Improve your cold outreach.
Paste text to calculate the estimated reading time based on your WPM. Set speaking time too. Perfect for speeches.
Learn about f‑stops and their effect on light and depth. Calculate equivalent exposure adjustments. Educational.
Enter megapixels and desired DPI to see the maximum print size without upscaling. Quick quality check.