LexiLint — Webpage Spell & Grammar Checker

Spell-check and grammar-check whole webpages, not just input fields. Free in English, offline, private. Premium adds 6 languages.

Catch the typo before your readers do. LexiLint proofreads an entire published webpage in one click. A live article, a blog post, a doc, a landing page: it reads the whole finished page, not just the text box you're typing in. So you catch the mistake before your readers do, not after you've hit publish. Grammarly helps you write. LexiLint helps you publish. FREE, FOREVER • Offline spell check — runs on your machine, wifi off, nothing sent anywhere. US & UK English dictionaries included. • English AI grammar — grammar, style, clarity and punctuation, powered by Google Gemini Flash using your own API key (Gemini Flash has a free tier that covers typical daily use). • Custom dictionary — add names, brands, and technical terms so they stop flagging. • Instant results with visual highlights. The free version works in English, for both spell check and grammar. Other languages are premium — see below. PREMIUM • 6 more languages — Spanish, French, German, Polish, Russian, Turkish (8 in total with English US & UK). Spelling and grammar in each, not just spelling. • More AI providers — OpenAI and Anthropic (Claude) alongside Gemini. Pick the model you trust most. • 7-day money-back guarantee — if it doesn't fit how you work, ask and you get a refund. Every AI grammar check — free or premium — uses your own API key (BYOK). Your text goes to the provider you choose, on your own account. It never passes through us. WHAT MAKES IT DIFFERENT • Checks published pages, not just input fields. Grammarly and LanguageTool check the box you're typing in. LexiLint checks the rendered page — including localhost and staging, before you launch. • Spell check is 100% local. No server, no tracking, no data collection. • You own the AI. Your key, your provider, your cost, not a subscription that reads your writing. PRIVACY, SCOPED HONESTLY • Spell check: 100% offline. It never leaves your device. • AI grammar: your text is sent to the AI provider you chose, using your own key, not to us. Keys are stored in Chrome's encrypted local storage. • No tracking of your browsing or your text. No data collection. Full privacy policy: https://igniteapp.net/lexilint/privacy/ PRICING • Monthly: $2.99/month — cancel anytime. • Lifetime: $29.99 — one-time payment. Secure checkout via Polar.sh (powered by Stripe). SUPPORT Email lexilint@igniteapp.net with anything: a bug, a question about setup, a language you want added. Free or premium, same inbox, usually a reply within 24 hours. Built for writers, developers, and anyone who publishes on the open web.