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secondbrain.is

Free web tools and Chrome extension that rewrite and save AI prompts for people using ChatGPT, Claude, Gemini and other chatbots

Icelandsecondbrain.isWebsite technologies

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Highlights

  • New on EvolcAdded 2026-10-27

About secondbrain.is

SecondBrain builds a free AI prompt generator and prompt optimizer, offered as web tools and as a Chrome extension that adds prompt actions inside supported AI chatbots. The generator builds a structured prompt from a rough idea, and the optimizer rewrites an existing prompt while preserving its intent. Saved prompts are stored locally in the browser.

The product is aimed at individuals who reuse AI prompts for recurring tasks and do not require an account to use the web tools. The website states that both tools are free and that the Chrome extension is free to install from the Chrome Web Store.

The website lists a contact address at secondbrain.is and supports ChatGPT, Claude, Gemini, Grok, Meta AI, DeepSeek, Perplexity and Copilot.

Product: Free web prompt generator and prompt optimizer, plus a Chrome extension that adds prompt optimization and a browser-local prompt library inside AI chatbots.

Jobs at secondbrain.is

No open positions listed right now.

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