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Fast, offline audits for Accessibility, Performance, Security & Technical SEO inside DevTools and Side Panel. Whether you're coding, testing, or designing, SiteLint helps you catch issues early and ship inclusive, high-performing websites and web applications. SiteLint extension is built with a deep commitment to accessibility, ensuring that our interface is usable and inclusive for everyone. 🤖 Built-in AI with Gemini Nano SiteLint now features an integrated Gemini Nano model, running natively in your Chrome browser. * No rate limits: audit and chat as much as you want without hitting API caps. * Total privacy: your code and data never leave your computer. AI processing happens locally. * Works offline: get intelligent explanations and follow-up answers even on a plane. * Smart remediation: ask follow-up questions about specific rule violations to get tailored fix suggestions. Note: To use these features, Gemini Nano must be enabled in your browser. 👉 Follow Google's guide to enable the Prompt API: https://developer.chrome.com/docs/ai/get-started#use_apis_on_localhost Key Features: ✅ Multi-audit engine Run comprehensive audits for Accessibility, Performance, Security, and SEO - all from a single tool. ✅ Web accessibility compliance Verify compliance with WCAG, ADA, EAA, and other regulations. Improve usability for everyone and reduce legal risks with automated checks. ✅ Full Shadow DOM support Audit Web Components and custom elements with complete Shadow DOM traversal. SiteLint reaches into every shadow root to catch issues in modern component-based architectures. ✅ AI‑generated image alternative descriptions Generate meaningful, context‑aware alt text for any image on your page using Gemini Nano. Improves WCAG 1.1.1 (Non‑text Content) compliance, enhances screen reader usability, and boosts SEO. Processing is local, private, and works offline. (Generated descriptions may not always be perfectly accurate - review before publishing.) ✅ PDF Accessibility Validation - private & local Validate PDF documents for accessibility compliance directly inside the SiteLint Chrome extension. Your PDF never leaves your computer - no upload to any server, no cloud processing, no third-party APIs. All analysis happens locally in your browser. What you can do: - Upload local PDF files - Validate a PDF by URL - Automatically detect PDFs on any webpage you visit What gets checked PDF/UA: - Tagged PDF status and structure tree (StructTreeRoot) - Font embedding (detects missing/synthetic fonts) - Marked content on all pages - Document language and metadata (title, author, subject) - Image alternative text - Heading hierarchy (H1-H6) - Table headers (TH elements) - Form field labels WCAG requirements: - Color-only information detection - Keyboard accessibility (interactive elements) - Document outlines/bookmarks - Link purposes - Language specifications Best Practices: - List structure (L, LI, Lbl, LBody) - Bookmarks for long documents (>20 pages) - Microsoft Word export detection Report includes: - Accessibility score (0-100) - Page-by-page analysis with detected structure types - Font analysis (embedded, synthetic, non-embedded) - CSV export for integration ✅ Privacy-first & fully offline SiteLint runs entirely on your device. Each audit engine update is cryptographically signed and verified with SHA-384 integrity checks for maximum trust. ✅ DevTools & Side Panel integration Use SiteLint directly in Chrome DevTools for deep code-level insights, or in the Side Panel for quick, on-the-fly checks as you browse. ✅ Actionable insights Get instant issue breakdowns with clear remediation steps. Pinpoint problems at the code level and fix them fast with AI-powered context. ✅ Zero telemetry without consent Your data stays yours. SiteLint never sends telemetry unless you explicitly opt-in. ✅ Standards‑based EARL reporting Generate audit results in EARL format aligned with WCAG Success Criteria, enriched with SiteLint best‑practice metadata. 🔄 Coming Soon: SiteLint Pro * Team workspaces: record, track, and manage issues in the SiteLint platform. * One-click sync: send reports to a shared workspace for team collaboration. Install once. Audit everywhere. Start building faster, safer, and more inclusive websites today with SiteLint.