The Web Tools department at Public Media Tool provides an engineered suite of browser-based utilities tailored for high-speed, client-side execution. Designed to streamline daily workflows across Developer & Code, each tool operates entirely inside your local web browser engine without uploading files, numbers, or text strings to external cloud servers. Whether you are conducting quick everyday conversions, validating technical parameters, or formatting high-volume data payloads, these tools deliver instantaneous results with zero latency and complete data confidentiality.
Encode or decode strings for safe query parameter transmission.
Open Tool →Decode JWT token header, payload claims, expiration time, and signatures.
Open Tool →Inspect browser engine, operating system, device screen resolution, and hardware.
Open Tool →Inspect DNS record structures for A, AAAA, CNAME, MX, TXT, NS, and SOA.
Open Tool →Calculate CIDR subnet ranges, usable IP counts, network addresses, and broadcast IPs.
Open Tool →Compress expanded 128-bit IPv6 addresses or expand compressed "::" syntax.
Open Tool →Search all 1xx, 2xx, 3xx, 4xx, 5xx HTTP response codes with cause & solutions.
Open Tool →Parse raw HTTP response headers into structured JSON Key-Value pairs.
Open Tool →Convert special HTML characters into entities (<, >, &, ") or decode.
Open Tool →Parse raw document.cookie header strings into formatted JSON key-value objects.
Open Tool →Parse complex URL query string parameters (?utm_source=...&id=...) into clean JSON.
Open Tool →Build trackable marketing campaign URLs with utm_source, utm_medium, utm_campaign.
Open Tool →Build robots.txt files with User-Agent rules, Disallow paths, and Sitemap links.
Open Tool →Generate valid XML sitemaps with <url>, <loc>, <lastmod>, and <changefreq> tags.
Open Tool →Generate Open Graph (og:title, og:image) and Twitter Card tags with live preview.
Open Tool →Generate JSON-LD structured data for Article, Product, Organization, and FAQ.
Open Tool →Interactively test flex-direction, justify-content, align-items, and copy CSS code.
Open Tool →Build CSS grid layouts with grid-template-columns, gap, and fr unit controls.
Open Tool →Design glass UI components with blur, opacity, border, and backdrop-filter CSS.
Open Tool →Interactively adjust X/Y offset, blur radius, spread, opacity, and inset shadow.
Open Tool →Adjust independent top-left, top-right, bottom-right, bottom-left border radii.
Open Tool →Create multi-stop CSS gradients with angle controls and copy background CSS.
Open Tool →Create CSS pulse, bounce, shake, rotate animations and export @keyframes code.
Open Tool →Build styled <table> HTML markup with <thead>, <tbody>, padding, and CSS classes.
Open Tool →Build clean formatted Markdown grid tables (| Header | Value |) with column alignments.
Open Tool →Generate responsive <iframe> embed tags with aspect ratio wrappers and security sandbox.
Open Tool →Convert raw <svg> markup into clean background-image: url("data:image/svg+xml,...") CSS.
Open Tool →Build CSS @font-face directives for WOFF2 / WOFF custom web fonts.
Open Tool →Reference standard media query breakpoints for Mobile, Tablet, Desktop, and 4K displays.
Open Tool →Inspect browser storage usage (Bytes used) and available IndexedDB storage quota.
Open Tool →Send and receive real-time messages across open browser tabs on same origin.
Open Tool →Test browser native speech synthesis voices, pitch, rate, and audio spoken text.
Open Tool →Learn target thresholds for Largest Contentful Paint (LCP), INP, and Cumulative Layout Shift (CLS).
Open Tool →Generate <link rel="canonical" href="..."> tags to prevent duplicate content SEO penalties.
Open Tool →Generate <link rel="hreflang" ...> tags for international multi-language websites.
Open Tool →Generate Web App Manifest JSON for Progressive Web Apps (PWA) installability.
Open Tool →Generate custom data-* attributes and corresponding CSS / JS querySelectors.
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