Hi Product Hunt, I’m Francis, a software engineer building a portfolio of useful digital products in public. After using Midjourney for more than two years, I kept seeing the same problem: prompt tools often generate a block of text without helping people understand which words changed the image. While creating my Prompt Like a Pro field guide, I built Sentence Lab to turn prompt writing into a visible sequence of decisions. Choose a scenario, define the subject, and select composition, camera, lighting, atmosphere, color, and medium. Each term explains the effect you should see. Prompts are saved locally, nothing is uploaded, and the tool is free to use. I would especially value feedback on the first-use experience: Is it clear what to choose next, and does the final prompt feel easier to edit than starting from a blank box?

Sentence Lab

Build AI-art prompts one visual decision at a time

Build AI-art prompts one visual decision at a time