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Audit, validate, and generate IAB Tech Lab ads.txt and app-ads.txt files with duplicate and conflict detection.

Identify and track GPTBot, ClaudeBot, PerplexityBot, and AI scraping activity from server access logs.

Check HTTP status codes, redirect chains, and final destination URLs for up to 25 links in parallel.

Verify WCAG 2.1 AA and AAA compliance for normal text, large text, and UI components in real time.

Audit, evaluate risks, and visually construct W3C Content Security Policy Level 3 directives.

Convert Apple HEIC photos to high-compatibility JPEG in browser with batch processing.

Extract exact pixel colors, inspect loupe magnifier zoom, and auto-detect dominant color palettes.

Reduce JPEG, PNG, and WebP file sizes in browser without visual quality degradation.

Minify and beautify JavaScript code client-side with comment removal, whitespace compression, and byte savings metrics.

Beautify, minify, and pinpoint syntax errors in JSON payloads with AST diagnostics.

Combine multiple PDF documents into a single organized file entirely in-browser.

Generate responsive OpenGraph, Twitter Card, and Google Search preview meta tags.

Convert PDF pages to high-resolution JPG images client-side with selective page export and DPI presets.

Calculate percentages, percentage change, additions, deductions, and ratios across 6 modes.

Shrink PNG images by 30% to 70% with modern WebP encoding while keeping transparency.

Calculate gross profit margin, markup percentage, and target selling price from cost.

Test JavaScript regular expressions with real-time match highlighting, capture groups, and flag controls.

Calculate Return on Investment (ROI) and annualized returns with profit and cost breakdowns.

Generate and audit RFC 9116 security.txt vulnerability disclosure files with expiration checks.

Analyze technical SEO, indexability, metadata, crawling, and structure signals in one comprehensive report.

Forecast organic search return on investment, lead revenue, and campaign breakeven.

Rasterize vector SVG files into high-resolution PNG images with scale multiplier controls.

100% private, client-side log analyzer for Apache and Nginx access logs with 404 and crawler detection.

Convert modern WebP images to universal PNG with full transparency retention.

Flagship audit analyzing server TTFB, compression, caching, render-blocking scripts, and image layout space.

Instant real-time word count, reading time, and readability statistics.

Compute exact chronological age in years, months, days, total hours, and next birthday countdown.

Inspect which AI crawlers are allowed, blocked, or search-permitted in your robots.txt.

Transform text between UPPERCASE, lowercase, Title Case, camelCase, snake_case, and kebab-case.

Precise character counting with and without spaces, bytes, and platform limits.

Generate harmonious color schemes (complementary, analogous, triadic, tetradic) and export CSS variables.

Calculate CR percentage, expected conversions, or required visitors/leads.

Design linear, radial, and conic CSS gradients with multi-stop visual controls and instant CSS export.

Minify CSS stylesheets to eliminate comments and whitespace or beautify minified styles with readable indentation.

Convert CSV spreadsheets to formatted or minified JSON with automatic type inference and RFC 4180 parsing.

Inspect, filter, search, and sort CSV spreadsheets in a lightweight in-browser table without heavy software.

Calculate sale price, total savings, and stacked coupon discounts.

Inspect DMARC policies (p=reject, quarantine, none), reporting tags (rua, ruf), and alignment settings.

Inspect A, AAAA, CNAME, MX, TXT, NS, SOA, and CAA DNS records for any domain.

Calculate minimum hourly and day rates needed to reach target annual take-home income.

Generate SHA-256, SHA-512, SHA-384, SHA-1, MD5, and CRC32 cryptographic hashes and checksums.

Convert Apple HEIC photos to lossless PNG format with transparent alpha channel preservation.

Convert hourly wages to annual salary, weekly, bi-weekly, and monthly pay rates.

Calculate time card shift durations, lunch breaks, and total billable work hours.

Minify HTML code to reduce page payload or beautify unformatted markup with clean indentation.

Inspect HTTP response status, headers, and security configurations.

Crop photos with precision presets for social media banners, profile pictures, and custom aspect ratios.

Resize images to exact dimensions or percentages with aspect ratio lock.

Audit image alt attributes, explicit dimensions for CLS prevention, lazy loading, and modern format usage.

Encode PNG, JPEG, SVG, and WebP images into Data URI Base64 strings for CSS and HTML embedding.

Inspect meta robots tags, X-Robots-Tag HTTP headers, and canonical directives for indexing blockers.

Convert multiple JPG, PNG, and WebP images into a single clean PDF document.

Convert JPEG and JPG photos into lossless PNG format without compression degradation.

Convert JPEG photos to modern WebP format for faster page load times and smaller payloads.

Decode and inspect JSON Web Token (JWT) header and payload claims with timestamp humanization.

Compute 1-word, 2-word, and 3-word n-gram frequency distributions and density percentages.

Generate structured markdown /llms.txt and /llms-full.txt files for AI search agents and LLMs.

Convert GitHub Flavored Markdown (GFM) into clean, sanitized HTML with live dual-pane preview.

Audit HTML meta tags, OpenGraph, Twitter Cards, robots directives, and viewport settings.

Compare DNS resolution and verify record consensus across Google Public DNS, Cloudflare, Quad9, and OpenDNS resolvers.

Audit Facebook Open Graph and Twitter/X card tags with interactive social media previews.

Calculate Shannon entropy bits and estimate brute-force cracking times across multiple attack scenarios.

Reorder, rotate, duplicate, and delete pages within PDF documents visually in your browser.

Render PDF document pages into crisp, high-resolution PNG images directly in your browser.

Convert heavy PNG graphics into lightweight JPEG files with custom background flattening.

Lookup domain registration details, registrar, nameservers, status codes, and DNSSEC using official ICANN RDAP.

Generate redirect code for Apache .htaccess, Nginx, Cloudflare, Netlify, and Next.js.

Calculate Return on Ad Spend (ROAS) and target budget spend limits for ad campaigns.

Test and debug crawler access rules against specific URLs using RFC 9309 path-matching logic.

Generate Schema.org-valid JSON-LD structured data for Organization, LocalBusiness, Article, Product, and more.

Generate cryptographically secure passwords and passphrases using globalThis.crypto.getRandomValues().

Convert article titles and headlines into clean, SEO-optimized URL slugs with stop-word filtering.

Preview Google Search snippets on desktop and mobile with exact pixel width calculations.

Check HTTP status codes of links on a single web page to identify 404 dead links and broken redirects.

Validate Sender Policy Framework (SPF) records, test mechanisms, count DNS lookups, and prevent PermError.

Extract specific pages or break a multi-page PDF into independent files.

Inspect SSL/TLS certificate validity, expiration date, issuer chain, SAN domains, and cipher protocols.

Deconstruct URLs into protocol, host, path, and interactive query parameters with tracking tag removal.

Visualize XML sitemaps as an interactive directory tree to inspect crawl depth and URL architecture.

Turn WebP images into universally compatible JPEG files with custom background colors.

Strip duplicate spaces, zero-width characters, line breaks, and messy formatting.

Generate granular robots.txt directives to selectively allow or block AI training vs AI search bots.

Concise key-point extraction and paragraph synthesis via LLM engine.

Calculate missing dimensions, simplify standard ratios (16:9, 4:3, 1:1, 9:16), and preview responsive scaling.

Convert next-gen AVIF images to universally supported JPEG files in seconds.

Convert AVIF graphics to lossless PNG with full transparency and alpha channel preservation.

Inspect referring domains, anchor text, and index authority via verified index provider.

Encode and decode UTF-8 text and binary payloads to and from Base64 strings.

Determine the exact minimum ROAS required to cover product margins and avoid ad losses.

Calculate working business days between dates, excluding weekends and public holidays.

Validate rel=canonical links, self-referencing consistency, protocol match, and duplicate prevention.

Calculate Cost Per Acquisition (CPA) and customer acquisition cost across ad spend.

Calculate Cost Per Click (CPC), total ad spend, or expected traffic clicks.

Calculate Cost Per Mille (CPM), total ad campaign cost, or required impressions.

Calculate Click-Through Rate (CTR) percentage from impressions and clicks.

Calculate exact days, weeks, months, and years between two calendar dates.

Lookup and inspect DKIM public key TXT records by domain and selector to verify email signing.

Calculate the exact age, registration date, and expiration timeline of any domain name.

Check real authority indicators and domain age via live verified providers.

Convert pixels to physical print inches/centimeters at target DPI, and compute display PPI from screen size.

Generate professional corporate email address combinations from first name, last name, and domain.

Inspect embedded EXIF camera metadata, ISO, shutter speed, and location details in JPEG/TIFF photos.

Generate multi-resolution PNG favicons, Apple Touch Icons, and PWA manifest assets.

Audit H1-H6 heading hierarchy, detect skipped heading levels, and inspect document outlines.

Generate and audit international hreflang link tags with ISO language and country code verification.

Convert HTML markup into clean, human-readable Markdown with table and list preservation.

Strip HTML tags, decode entities, and convert rich web markup into clean plain text with text-to-code ratio.

Convert images between PNG, JPEG, and WebP formats instantly.

Flatten and convert JSON object arrays into clean CSV spreadsheets with formula injection protection.

Validate JSON-LD structured data against Schema.org types and Google Rich Result required fields.

Extract top keywords, keyphrases, and n-grams from text or articles with stop-word filtering.

Validate syntax, section hierarchy, URL structures, and token limits of /llms.txt files.

Calculate retail markup percentage, selling price, and equivalent profit margin.

Plan monthly finances and track spending against the 50/30/20 budgeting framework.

Audit internal and external page links, nofollow attributes, anchor text, and link equity distribution.

Extract text content, headings, and character counts from searchable PDF documents client-side.

Convert Internationalized Domain Names (IDN) with Unicode characters to ASCII Punycode (xn--) and back.

Create customizable, high-contrast SVG and PNG QR codes for links, Wi-Fi, and text.

Estimate reading duration, speaking pace, and readability grade levels.

Trace complete 301, 302, and 307 HTTP redirect paths and status chains.

Create and validate crawler directives for Googlebot, Bingbot, and AI scrapers.

Rotate PDF pages clockwise by 90, 180, or 270 degrees in your browser.

Calculate sales commission payouts with flat rates, marginal tiers, or retroactive brackets.

Calculate total sales tax, order totals, or extract pre-tax subtotal from tax-inclusive prices.

Verify programmatic ad seller identity and publisher account legitimacy via IAB Sellers.json specifications.

Verify web server availability, response times, and HTTP status codes.

Compare two text snippets side-by-side with line-by-line diff highlights.

Convert between Unix epoch timestamps (seconds & ms) and human-readable dates.

Encode parameters to percent-encoding or decode query strings into readable URLs.

Construct clean, standardized campaign tracking URLs for Google Analytics 4 and advertising channels.

Generate cryptographically secure RFC 9562 UUIDv4 identifiers in bulk.

Add or remove Value Added Tax (VAT) with international rate presets and net/gross breakdowns.

Format, beautify, and validate XML documents, sitemaps, and feeds with syntax error diagnostics.

Convert lists of URLs into standard search-engine compatible XML sitemaps.

Validate XML sitemaps and sitemap index files for schema compliance, encoding, and broken URLs.