SEO Readability Score Calculator

SEO Readability Score Calculator

Estimate readability score and reading grade.

Inputs

Preview / Analysis

How to Use This Tool

  1. Provide your page/content details.
  2. Generate snippet or analysis.
  3. Copy output into your website or workflow.

Important Notes

  • Client-side processing only.
  • No upload to server.
  • Theme-consistent UI across tools.
  • Free to use with no login/signup required.
  • Report bugs in comments with exact inputs and expected output.

Similar SEO & Web Tools

')+t('css','CSS Source','body{margin:0;}')+t('js','JS Source','console.log("x");'), run:()=>{ const hb=document.getElementById('html').value.length, cb=document.getElementById('css').value.length, jb=document.getElementById('js').value.length,total=hb+cb+jb; output.textContent=`HTML: ${hb} bytes\nCSS: ${cb} bytes\nJS: ${jb} bytes\nTotal: ${total} bytes\n\nTips:\n- Minify CSS/JS\n- Remove unused code\n- Compress images`; preview.textContent='Bundle size estimated from source text.'; }}, breadcrumb:{ui:t('bc','Breadcrumb list (Name|URL)','Home|https://example.com\nBlog|https://example.com/blog\nPost|https://example.com/blog/post'), run:()=>{ const items=document.getElementById('bc').value.split(/\n+/).map(v=>v.split('|').map(x=>x.trim())).filter(v=>v.length===2&&v[0]&&v[1]).map(([name,url],idx)=>({"@type":"ListItem",position:idx+1,name,item:url})); const data={"@context":"https://schema.org","@type":"BreadcrumbList",itemListElement:items}; output.textContent=JSON.stringify(data,null,2); preview.innerHTML=items.map(i=>`${i.name}`).join(''); }}, faq:{ui:t('fq','FAQ pairs (Q|A)','What is this?|A free tool.\nIs login required?|No login needed.'), run:()=>{ const mainEntity=document.getElementById('fq').value.split(/\n+/).map(v=>v.split('|').map(x=>x.trim())).filter(v=>v.length===2&&v[0]&&v[1]).map(([q,a])=>({"@type":"Question",name:q,acceptedAnswer:{"@type":"Answer",text:a}})); const data={"@context":"https://schema.org","@type":"FAQPage",mainEntity}; output.textContent=JSON.stringify(data,null,2); preview.textContent=`FAQ items: ${mainEntity.length}`; }}, howto:{ui:i('ht','HowTo Name','text','Install Package')+t('hs','Steps (one per line)','Open terminal\nRun install command\nVerify output'), run:()=>{ const steps=document.getElementById('hs').value.split(/\n+/).filter(Boolean).map((v,i)=>({"@type":"HowToStep",position:i+1,text:v.trim()})); const data={"@context":"https://schema.org","@type":"HowTo",name:document.getElementById('ht').value,step:steps}; output.textContent=JSON.stringify(data,null,2); preview.textContent=`HowTo steps: ${steps.length}`; }}, local:{ui:i('ln','Business Name','text','Code2Care Labs')+i('la','Address','text','123 Main St, City')+i('lp','Phone','text','+1-555-0100')+i('lu','URL','text','https://code2care.org'), run:()=>{ const data={"@context":"https://schema.org","@type":"LocalBusiness",name:document.getElementById('ln').value,address:document.getElementById('la').value,telephone:document.getElementById('lp').value,url:document.getElementById('lu').value}; output.textContent=JSON.stringify(data,null,2); preview.textContent='LocalBusiness schema generated.'; }}, social_preview:{ui:i('spu','URL','text','https://code2care.org/tools')+i('spt','Title','text','Tool Title')+i('spd','Description','text','Useful summary for social cards.'), run:()=>{ preview.innerHTML='
'+document.getElementById('spu').value+'
'+document.getElementById('spt').value+'
'+document.getElementById('spd').value+'
'; output.textContent='Social preview ready for manual check across platforms.'; }}, ad_counter:{ui:i('h1','Google Headline 1','text','Fast Online Tool')+i('h2','Google Headline 2','text','No Login Required')+i('h3','Google Headline 3','text','Free & Browser-Based')+i('d1','Google Description 1','text','Generate clean output instantly.')+i('d2','Google Description 2','text','Use this free tool on desktop or mobile.'), run:()=>{ const ids=['h1','h2','h3','d1','d2']; const lim={h1:30,h2:30,h3:30,d1:90,d2:90}; output.textContent=ids.map(id=>`${id.toUpperCase()}: ${document.getElementById(id).value.length}/${lim[id]} ${document.getElementById(id).value.length<=lim[id]?'OK':'OVER'}`).join('\n'); preview.textContent='Ad copy lengths calculated.'; }} }; const conf = modes[mode] || modes.meta; controls.innerHTML = conf.ui; document.getElementById('runBtn').addEventListener('click', ()=>{ try{ setStatus('Processing...','#92400e'); conf.run(); setStatus('Done.'); }catch(e){ console.error(e); setStatus(e.message||'Failed','#b91c1c'); }}); document.getElementById('copyBtn').addEventListener('click', async ()=>{ try{ await navigator.clipboard.writeText(output.textContent||''); setStatus('Copied output.'); }catch(e){ setStatus('Copy failed.','#b91c1c'); }}); document.getElementById('runBtn').click(); })();

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