LexiLint

Tracking since Apr 16, 2026.

Changelog

• Apr 16, 2026
  description

  Catch typos before your readers do.
  
  LexiLint is the first browser extension that spell-checks and grammar-checks entire webpages - articles, blog posts, documentation - not just input fields. Stop finding errors after publication. Catch them while reading.
  
  🆕 v1.1.2: AI Model Selection + Enhanced Security + Reliability Fixes
  • AI Model Selection - Choose from latest models (GPT-5, Claude Opus 4.5, Gemini 2.5 Pro)
  
  📝 CHANGELOG
  
  v1.1.2 (Latest):
  • NEW: AI Model Selection - Choose from latest models for all providers
  • NEW: Cryptographic license verification for enhanced security
  • FIX: Language selection now persists across popup sessions
  • FIX: Premium models no longer shown to free users
  
  v1.1.1:
  • FIX: Grammar error highlighting now works reliably
  • FIX: Cache no longer clears unexpectedly on popup reopen
  • FIX: Improved stability for dynamic websites
  • UI: Enhanced settings page design
  
  ✨ FEATURES
  
  FREE SPELL CHECKING (100% Offline)
  • Works on any webpage - no internet required
  • US & UK English dictionaries included
  • Custom dictionary - add technical terms, names, brand names
  • Zero tracking, zero data collection
  • Instant results with visual highlights
  
  FREE AI GRAMMAR CHECKING
  • Grammar, style, clarity, and punctuation checking
  • Powered by Google Gemini 2.5 Flash (free tier: 1500 requests/day)
  • Bring Your Own API Key (BYOK) - you control the data
  • Deterministic results - same page, same errors every time
  • Context-aware checking for headings, paragraphs, lists, quotes
  
  PREMIUM: MULTI-LANGUAGE SUPPORT (7 Languages)
  • Free tier: English (US & UK)
  • Premium tier: French, German, Polish, Russian, Turkish
  • $49 lifetime OR $4.99/month (7-day free trial)
  • Test all languages during trial period
  
  PREMIUM: ADVANCED AI PROVIDERS
  • OpenAI GPT-4 / GPT-4o - Industry-leading grammar analysis
  • Anthropic Claude 3.5 Sonnet - Advanced reasoning and style
  • Seamless provider switching
  • All providers use BYOK model (you provide your own API key)
  
  🚀 HOW IT WORKS
  
  1. Click the LexiLint icon in your browser toolbar
  2. Click "Check Spelling" to scan the current page (offline, instant)
  3. Click "Check Grammar" for AI-powered analysis (requires free API key)
  4. Click on any highlighted error to see suggestions
  5. Accept suggestions or add words to your custom dictionary
  
  🎯 WHY LEXILINT?
  
  Competitors (Grammarly, LanguageTool) only work in input fields while you're typing. LexiLint is different:
  
  • Checks published content - Find errors in articles, docs, and blog posts BEFORE sharing
  • Works everywhere - News sites, GitHub READMEs, Medium articles, Notion pages
  • Privacy-first - Spell checking is 100% offline. Grammar checking uses YOUR API key with YOUR chosen provider
  • Free forever - Spell checking and Gemini grammar checking are always free
  • Premium options - Unlock 5 additional languages and advanced AI providers
  
  🔧 CONFIGURATION
  
  Spelling Settings:
  • Choose from 7 language variants (2 free, 5 premium)
  • Manage custom dictionary words
  • Language auto-detection
  
  Grammar Settings:
  • Choose AI provider: Gemini (free), OpenAI (premium), or Claude (premium)
  • Get a free Gemini API key from Google AI Studio (https://aistudio.google.com/apikey)
  • Test connection to verify setup
  • Separate API key storage per provider
  
  Premium Settings:
  • Activate license key for premium features
  • License syncs across all your Chrome browsers
  • Manage subscription or lifetime access
  
  🗺️ AI PROVIDER STATUS
  
  ✅ Google Gemini 2.5 Flash - Available (FREE - BYOK)
  ✅ OpenAI GPT-4 / GPT-4o - Available (Premium)
  ✅ Anthropic Claude 3.5 Sonnet - Available (Premium)
  🚧 Local LLM - Coming soon (100% offline grammar checking!)
  
  Want a specific provider? Email us at [email protected]
  
  💎 PREMIUM FEATURES
  
  Unlock all languages and advanced AI providers:
  
  • 5 additional languages: French, German, Polish, Russian, Turkish
  • OpenAI GPT-4 and GPT-4o support
  • Anthropic Claude 3.5 Sonnet support
  • Multi-device license sync
  
  Pricing:
  • Lifetime access: $49 (one-time payment, no trial)
  • Monthly subscription: $4.99/month (7-day free trial, cancel anytime)
  
  Secure checkout via Polar.sh (powered by Stripe)
  
  🔒 PRIVACY GUARANTEE
  
  LexiLint NEVER stores your data:
  
  • Spell checking: 100% offline, never leaves your device
  • Grammar checking: Text sent to YOUR chosen AI provider using YOUR API key
  • No tracking of your browsing or text content
  • Error logging (Sentry) excludes all user text, API keys, and personal data
  • API keys stored locally in Chrome's encrypted storage
  • License keys validated daily (only checks valid/invalid status)
  
  Full privacy policy: https://igniteapp.net/lexilint/privacy/
  
  💬 FEEDBACK & SUPPORT
  
  We're here to help:
  • Email: [email protected]
  • Response time: Usually within 24 hours
  • Feature requests welcome!
  
  🛠️ REQUIREMENTS
  
  • Chrome 90+ (for modern highlighting features)
  • For AI grammar checking: Free API key from your chosen provider
  
    - Google Gemini: https://aistudio.google.com/apikey (FREE)
    - OpenAI: https://platform.openai.com/api-keys (Premium)
    - Anthropic: https://console.anthropic.com/settings/keys (Premium)
  
  📝 CHANGELOG
  
  v1.1.0 (Latest):
  • Multi-provider AI support (Gemini, OpenAI, Claude)
  • Premium multi-language support (7 languages total)
  • Polar.sh payment integration
  • Sentry error logging (privacy-first)
  • Improved error messages and UX
  
  ---
  
  Built with ❤️ for writers, developers, content creators, and anyone who reads on the web.

  Catch typos before your readers do.
  
  LexiLint is the first browser extension that spell-checks and grammar-checks entire webpages - articles, blog
  posts, documentation - not just input fields. Stop finding errors after publication. Catch them while reading.
  
  🆕 WHAT'S NEW (v1.1.3)
  • Spanish language support added for spelling and grammar
  • 8 languages now supported (English US/UK + 6 premium)
  • AI Model Selection - Choose GPT-5, Claude Opus 4.5, Gemini 2.5 Pro
  • Enhanced security with cryptographic license verification
  
  ✨ FEATURES
  
  FREE SPELL CHECKING (100% Offline)
  • Works on any webpage - no internet required
  • US & UK English dictionaries included
  • Custom dictionary - add technical terms, names, brand names
  • Zero tracking, zero data collection
  • Instant results with visual highlights
  
  FREE AI GRAMMAR CHECKING
  • Grammar, style, clarity, and punctuation checking
  • Powered by Google Gemini 2.5 Flash (free tier: 1500 requests/day)
  • Bring Your Own API Key (BYOK) - you control the data
  • Context-aware checking for headings, paragraphs, lists, quotes
  
  PREMIUM: MULTI-LANGUAGE SUPPORT (8 Languages)
  • Free tier: English (US & UK)
  • Premium tier: Spanish, French, German, Polish, Russian, Turkish
  • All languages support both spelling AND grammar checking
  • Test all languages during 7-day free trial
  
  PREMIUM: ADVANCED AI PROVIDERS
  • OpenAI GPT-5 / GPT-4 - Industry-leading grammar analysis
  • Anthropic Claude Opus 4.5 / Sonnet 4.5 - Advanced reasoning and style
  • Gemini 2.5 Pro / Flash - Fast and accurate checking
  • AI Model Selection - Choose your preferred model
  • All providers use BYOK (you provide your own API key)
  
  🎯 WHY LEXILINT?
  
  Unlike Grammarly/LanguageTool (input fields only), LexiLint checks:
  • Published content - Find errors in live articles, docs, and blog posts
  • 100% privacy-first - Offline spell check, your own API keys for grammar
  • Free forever - Core features never require subscription
  
  💎 PREMIUM PRICING
  
  • Lifetime access: $29.99 (one-time payment)
  • Monthly subscription: $2.99/month (7-day free trial, cancel anytime)
  
  Secure checkout via Polar.sh (powered by Stripe)
  
  🔒 PRIVACY GUARANTEE
  
  • Spell checking: 100% offline, never leaves your device
  • Grammar checking: Text sent to YOUR chosen AI provider using YOUR API key
  • No tracking of your browsing or text content
  • API keys stored locally in Chrome's encrypted storage
  • Zero data collection, zero surveillance
  
  Full privacy policy: https://igniteapp.net/lexilint/privacy/
  
  💬 SUPPORT
  
  • Email: [email protected]
  • Response time: Usually within 24 hours
  • Feature requests welcome!
  
  ---
  
  Built with ❤️ for writers, developers, content creators, and anyone who reads on the web.

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Permissions

storageactiveTabalarms

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