🤖 AI & Agents
Scan any website for AI agent readiness. Inspect robots.txt, sitemaps, MCP configuration, OpenAPI specs, and metadata for AI crawler optimization.
Generate and validate llms.txt and llms-full.txt standard files to provide structured markdown site summaries for AI agents and LLM web crawlers.
Validate JSON-LD structured data and Schema.org markup online. Ensure rich snippet compatibility for search engines and AI web crawlers.
Parse server access logs in your browser to analyze visits from AI crawlers like GPTBot, ClaudeBot, and PerplexityBot with zero data upload.
🧰 Browser Tools
Audit any website against core web standards and baseline hygiene: HTTPS, favicon, title, viewport, H1, header, footer, schema, robots.txt, sitemap.xml, and security headers.
Generate custom QR codes instantly from URLs, plain text, Wi-Fi credentials, and vCards with SVG or PNG export directly in your browser.
Scan web pages to detect broken links, 404 errors, and redirect loops instantly in your browser with no server processing required.
Convert any image into browser favicons, Apple touch icons, and web manifest.json files in all required sizes locally.
Format, validate, minify, and sort JSON data online. Fast, browser-native JSON beautifier and linter with zero server tracking.
Encode and decode Base64 strings, URL parameters, JWT tokens, and Data URIs instantly with client-side privacy.
Parse, inspect, encode, decode, and build web URLs. Manage query string parameters visually right inside your browser.
Compress and decompress text strings using browser-native Deflate and Gzip algorithms with Base64 output.
Convert between JSON, CSV, Hex, and Base64 data formats locally. Fast client-side data transformer with zero file uploads.
Build, test, and debug regular expressions online with real-time string matching, group syntax highlighting, and pattern explanations.
Compress and optimize PNG, JPEG, and WebP images directly in your browser without quality loss or uploading files.
Inspect and parse CSV files in an interactive data table. Convert CSV to JSON, Markdown or SQL insert statements effortlessly.
Compare text, JSON, and code snippets side-by-side with live line-by-line diff highlighting and inline comparison.
Write and preview Markdown with real-time HTML rendering, syntax highlighting, GitHub Flavored Markdown support, and file export.
Generate realistic mock data including names, emails, addresses, numbers, and JSON objects locally for development testing.
Batch generate cryptographically secure UUID v4 identifiers and lexicographically sortable ULIDs with quick copy.
Build and test cron expressions visually. Translate cron syntax into plain English descriptions and view upcoming execution schedules.
Convert Unix epoch timestamps to ISO 8601, UTC, and local date formats instantly with multi-timezone support.
Convert text between camelCase, snake_case, kebab-case, PascalCase, Title Case, and UPPERCASE string formats instantly.
Convert configuration files seamlessly between YAML, JSON, and TOML formats with syntax validation in your browser.
Generate XML sitemaps for website URLs and paths. Optimize SEO crawling and search engine indexing effortlessly.
Create and validate robots.txt files for search engine crawlers and AI search bots with customized allow/disallow rules.
Preview how your web page meta tags and Open Graph cards look on Google, Twitter/X, Facebook, and LinkedIn.
Searchable guide for HTTP status codes (1xx-5xx), headers, and API response rules with practical developer examples.
Test cross-origin resource sharing (CORS) headers, origins, and preflight OPTIONS responses for API endpoints.
Test, inspect, and debug incoming HTTP webhook payloads, headers, and request bodies in real time directly in your browser.
Parse and inspect HTTP Cookie and Set-Cookie response headers for SameSite, Secure, HttpOnly, and Max-Age security flags.
🔒 Security
Generate cryptographically secure passwords, API keys, and secret tokens locally with entropy evaluation and zero network calls.
Analyze HTTP response headers for any web URL. Inspect security policies, cache directives, server configurations, and CSP.
Calculate cryptographic SHA-256, SHA-512, MD5, and HMAC hashes locally in your browser with hex or Base64 encoding.
Check SSL/TLS certificate details, expiration dates, domain matches, issuer authority, and trust chain validation.
Decode, inspect, and verify JSON Web Tokens (JWT) headers and payload claims locally using Web Crypto API.
Build and validate custom Content Security Policy (CSP) headers to defend web applications against XSS and injection attacks.
Evaluate password security strength, bit entropy score, pattern detection, and estimated crack time entirely offline.
Verify file integrity by calculating MD5, SHA-1, SHA-256, and SHA-512 checksums locally without uploading files.
🎨 Design
Generate color palettes, extract dominant colors from images, and export HEX, RGB, and HSL color values.
Convert CSS units between pixels (px), rem, em, viewports (vw/vh), and percentages with live responsive preview.
Optimize and minify SVG markup. Strip metadata, clean attributes, and compress vector graphic code for web performance.
Design linear, radial, and conic CSS gradients visually. Adjust color stops and export production-ready CSS code.
Convert images between PNG, JPEG, WebP, and AVIF formats with resolution scaling and quality controls in your browser.
Combine multiple PNG/SVG icons into optimized image sprite sheets with automatically generated CSS classes and JSON maps.
Test web color contrast ratios against WCAG 2.1 AA and AAA accessibility standards for text and UI components.
🌐 Network
Perform online DNS queries for A, AAAA, MX, TXT, NS, CNAME, SOA, and SRV records using DNS-over-HTTPS.
Lookup IP address details including country geolocation, ISP organization, ASN routing data, and network hostnames.
Test network latency, packet round-trip time, and visualize traceroute hop paths to any domain or IP address in real time.
Explore common TCP and UDP network port numbers, protocol service definitions, and reachability status references.
Query domain WHOIS and RDAP records to inspect registration status, domain registrar, nameservers, and expiration dates.
🖥️ Desktop
Control system volume via mouse wheel on the Windows taskbar
Self-hosted mailing list and newsletter platform
Open-source screen capture and sharing tool
Secure local network file sharing with zero cloud or accounts. (Note: P2P transfer bypasses enterprise DLP/email gateways)
Fast and Git-friendly open-source API client. Desktop client is free & open-source (team sync uses paid tiers).
Actively-maintained email testing server & UI — the modern successor to MailHog for local web development.
☁️ SaaS
GOO is a modular school management platform for student records, attendance tracking, grade reporting, timetables, and parent communication.
GES is an interactive quiz platform to create online assessments, deliver tests, and track student performance in real time.
GYP is a software license and client management platform for tracking client subscriptions, license keys, billing, and support requests.
GST is a mobile-first inventory and expense tracking web app designed for small workshops, business stock, and materials management.