Seo
AI Crawler robots.txt Builder
Build a robots.txt policy for AI crawlers. Choose from open, selective, or strict presets and block specific AI training bots while allowing search engines.
For the last mile of publishing
You might not need AI for every web task
Solve everyday HTML, CSS, SEO, mobile UI and publishing tasks with fast browser tools. No uploads, accounts, or AI token costs.
01 <link rel="canonical" href="https://www.jquery.app/tools/css-clamp-calculator/"> 02 <meta name="robots" content="index, follow"> 03 <meta property="og:title" content="Ready to publish"> 04 <link rel="alternate" hreflang="en" href="https://www.jquery.app/">
Nothing leaves your browser
Start here
Small browser tools for developers, designers and publishers.
Fix HTML, shape CSS, check SEO, prepare mobile UI, and finish web work — without token costs, accounts, or uploads. Each tool gives you a result you can inspect, copy, and use right away.
SEO ToolsSmall browser tools for metadata, indexing, canonical URLs, social previews, and static site launch checks.HTML ToolsCopy-paste helpers for cleaner HTML tags, head markup, snippets, and publishing workflows.CSS ToolsPractical CSS generators for responsive layouts, spacing, mobile polish, and everyday UI fixes.Image & Asset ToolsLocal helpers for icons, image markup, asset paths, and static website files.GitHub Pages ToolsTools for custom domains, static publishing, launch checks, and GitHub Pages website maintenance.
Why this exists
Most tiny web problems are not AI problems.
Deterministic output. No tokens. No hallucinations. Missing canonical tags, broken favicon paths, awkward mobile padding, and messy social previews need a reliable answer — not another chat session.
No AI tokensNo uploadsNo accountsDeterministic outputReady for static hosting
First release
Small tools with a clear finish line
Each tool is designed to produce something you can inspect, copy, and use right away.
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Html
ARIA Live Region Generator
Generate accessible ARIA live region HTML snippets with role, aria-live, aria-atomic, and aria-relevant attributes. Includes optional JavaScript update function.
Github Pages
Assetlinks & AASA Generator
Generate Android assetlinks.json and Apple App Site Association (AASA) files for Universal Links and Android App Links.
Github Pages
Cache-Control Header Builder
Build correct Cache-Control HTTP headers for static assets, HTML pages, feeds, and sensitive content.
Css
Container Query Units Calculator
Calculate clamp() values using container query units (cqi, cqw, cqb, cqmin, cqmax) for component-level responsive sizing.
Github Pages
COOP/COEP/CORP Header Builder
Build Cross-Origin isolation headers for SharedArrayBuffer, WebAssembly threads, and cross-origin security. Choose from presets with debugging checklists.
Collections
Tool collections for common workflows
Collections
GitHub Pages Publishing Workflow
Tools for setting up a custom domain, preparing static output, and checking launch details before pushing to GitHub Pages.
5 toolsCollections
Blog Publisher Toolkit
Tools for social previews, clean HTML markup, canonical URLs, structured data, and responsive images for blog posts and article pages.
5 toolsCollections
Beginner CSS Starter Kit
CSS tools for responsive typography, safe-area spacing, and iframe embeds. Practical values without a large design system.
3 toolsCollections
Multilingual Website Setup
Tools for hreflang tags, canonical URLs, social previews, and crawler directives for websites with content in multiple languages.
5 tools