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by Beagle
The open-source prompt optimizer that teaches you why. Stop guessing and start engineering better prompts with instant feedback and detailed explanations.
Free. Open-source. Your API key never leaves your browser.
Enter your draft prompt. It can be messy, vague, or just a rough idea.
Choose a mode (Better, Specific, or Chain-of-Thought) and let AI refine it.
See exactly what changed and why, so you become a better prompt engineer.