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Privacy-First Grammar Checker for Chrome

LexiLint keeps spell checking on your device. If you start an optional AI grammar check, the extension sends the selected page text directly to the provider you configured. Ignite App does not receive or store the page text.

Add to Chrome — Free
Local spell check  |  Direct-to-provider AI grammar  |  No extension analytics

🤖 New: LexiLint for AI Assistants

Use LexiLint's spell and grammar checking directly in Claude Desktop, ChatGPT, Cursor, and other AI assistants via the Model Context Protocol (MCP).

Learn More About MCP View on npm

How LexiLint Handles Page Text

Spell Check Stays on the Device

LexiLint compares visible page text with the selected dictionary inside the extension. The spell-check operation does not upload page text.

AI Grammar Goes to Your Provider

If you start a grammar check, the extension sends the selected text directly to the provider configured with your API key. Review that provider's privacy policy and terms before enabling the feature.

No Extension Usage Analytics

The current extension does not include usage analytics or remote error reporting. The igniteapp.net website uses Google Analytics; payments, licensing, and support have separate data flows.

Keys Stored in Your Browser Profile

Provider keys are stored through Chrome's extension storage API and are not sent to Ignite App. Protect access to your device and browser profile.

LexiLint Text and Service Flows

Action Recipient Purpose
Spell-check a page Your device only Compare text with the selected local dictionary
Run AI grammar Your selected AI provider Generate grammar suggestions using your API key
Visit igniteapp.net Website host and Google Analytics Serve the site and measure website usage
Buy or validate Premium Polar and its payment providers Process purchases and validate licenses

Read the complete privacy policy for retention, storage, and provider details.

Frequently Asked Questions

Does Ignite App receive the text I check?

No. Spell checking runs on the device. If you start an AI grammar check, the extension sends selected text directly to the provider configured with your API key.

Does the extension work without internet access?

Spell checking does. AI grammar does not; it needs internet access to contact the provider selected by the user.

Does the extension include analytics?

The current extension has no usage analytics or remote error reporting. The igniteapp.net website uses Google Analytics, and supporting services process data as described in the privacy policy.

Which providers can I use?

Gemini is available in the free LexiLint tier. Premium adds OpenAI and Anthropic. Provider accounts, terms, availability, and charges apply separately.