Kaidu — AI Prompt Improver for ChatGPT, Claude, Gemini & Grok

One click turns vague prompts into precise ones on ChatGPT, Claude, Gemini & Grok. Compact mode saves tokens. Free offline mode.

Stop rewriting the same prompt three times. Kaidu adds a ✨ button to the message box of your AI chat: ChatGPT, Claude, Gemini and Grok. Click it and your vague request becomes a clear, complete prompt, with the goal, context, format and tone the AI needs, before you hit send. No questions asked: Kaidu fills the gaps with sensible assumptions so you get a useful answer on the first try. EXAMPLE Before (score 37/100): "write an email asking for an internship" After (score 83/100): the same request, plus what the AI needs to get it right: who it's for, the right tone and length, and a ready-to-send result. NEW IN 0.6 - Compact mode: trims filler from your prompt and asks for shorter, more direct answers, so you spend fewer tokens. It learns which rules you keep and stops adding the ones you remove. - Grok support - Ideas: describe your situation and Kaidu suggests 5 things the AI can do for you that you may not have thought of, ready to send - Instructions panel: see the rules Kaidu adds, untick the ones you don't want, then insert. Your own text is never mixed with them. FREE LOCAL MODE: instant, offline, unlimited - Detects the kind of request (writing, code, translation, summary, plan, comparison, image prompt…) and adds only what's missing - Live quality score on the ✨ button, with a diagnosis of what your prompt lacks - Works in six languages - Nothing leaves your browser AI MODE: a real rewrite - 5 free AI rewrites to try it - Uses your own API key, or the AI built into Chrome where available - Watch the rewrite, see what changed, refine it in one click ("shorter", "more formal"…) and switch between versions - Three targets: chat prompts, system prompts and image prompts YOUR PROMPT LIBRARY - Save the prompts that work and reuse them with variables (Alt+Shift+L) - Profiles ("about me", work, studies) so the AI always gets your context PRIVATE BY DESIGN - No server, no account, no tracking - Your keys, license and Compact preferences stay on your device - Kaidu never sends a prompt that contains an API key or a card number - One-click undo PRICING Local mode and Compact mode are free. AI mode is unlocked by a one-time lifetime license (launch price €4.99, no subscription). You pay your AI provider directly, at cost. Website: https://kaidu.netlify.app Support: meshiphantom@gmail.com