LinguAIst — AI Translate & Improve

Translate and improve text with your ChatGPT account or OpenRouter free models. Bring your own AI, no LinguAIst subscription.

Translate and improve text on any website using the AI account you already have. NEW IN 0.2: CONNECT CHATGPT OR OPENROUTER Connect your ChatGPT account to use eligible plan access, or connect OpenRouter and choose from its free models. No LinguAIst subscription is required, and these account connections let you get started without manually entering a separate OpenAI API key. Looking for a free alternative for everyday translation and writing assistance? OpenRouter's “Free models only” filter helps you find models with zero input/output pricing. Free models have provider usage limits and can change or become unavailable. Paid OpenRouter models remain optional. ChatGPT account connection is experimental and uses your eligible ChatGPT plan allowance. Access depends on your account, supported models, and connected-app usage limits. An existing paid ChatGPT plan is not made free by the extension. You can also keep using your own OpenAI API key or a custom OpenAI-compatible endpoint. TRANSLATE AND WRITE WITHOUT SWITCHING TABS Select text to translate it inline. In editable fields, improve grammar, clarity, wording, and tone, then copy or replace the text. Add your own instruction to make a draft shorter, friendlier, or more formal. KEY FEATURES • Inline translation across websites. • Writing improvements and contextual rewriting in editable fields. • Optional surrounding page context, including a Gmail context adapter. • Streaming results. • ChatGPT and OpenRouter browser sign-in. • OpenRouter model picker with a free-only filter. • Separate connections and model preferences for each provider. • Connection and translation tests in Settings. • Searchable target-language suggestions and custom language codes. • Interface in 12 languages: English, Russian, Spanish, Ukrainian, German, French, Italian, Portuguese, Polish, Dutch, Simplified Chinese, and Arabic, with right-to-left layout for Arabic. • OpenAI API keys and custom or self-hosted OpenAI-compatible endpoints. • No LinguAIst account or subscription required. GET STARTED 1. Open LinguAIst Settings and choose ChatGPT, OpenRouter, OpenAI, or a custom provider. 2. Sign in or enter your API credentials, then choose a model. For OpenRouter, enable “Free models only” to browse free options. 3. Choose your translation language and save. 4. Select text on a webpage, or select text in an editable field to improve your writing. PRIVACY AND PROVIDER COSTS Text is sent directly from the extension to your selected AI provider. OpenRouter may forward requests to a downstream model provider. LinguAIst does not run an intermediary backend that receives your submitted page content. Writing-improvement requests may include limited surrounding content when page context is enabled. Translation uses the selected text. Handle personal and confidential information carefully; provider retention and training policies apply. LinguAIst itself has no subscription fee. Provider charges, account eligibility, usage limits, and availability still apply. API-key providers may receive a small connection warmup that can consume quota or incur charges. Website access is needed to translate selected text and improve writing wherever you work. Credentials are stored locally in trusted extension storage. Disconnect removes the local credentials; manage external authorizations in the provider's own settings. LinguAIst is an independent extension and is not affiliated with or endorsed by OpenAI or OpenRouter.