PromptLab
AI prompt engineering studio with version control, A/B testing, and team collaboration. Never lose a great prompt again.
Community Verdict
Loved by the community
342 of 370 builders would recommend PromptLab to a friend.
What people love
- Works exactly as advertised
- Clean, fast, and does one thing well
- Saves real time on a tedious task
Room to improve
- Docs could be more thorough
- Niche — not for everyone
Community Feedback
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Roast Quality Score
Community-ranked feedback that actually helps
“The onboarding is a masterclass in how to lose users in 30 seconds. You managed to ask for credit card info before showing me a single feature. Bold strategy.”
“Your pricing page lists 47 features but none of them explain what the product actually does. I had to read the Terms of Service to understand the core value prop.”
“The mobile experience is a desktop site that went through a blender. The nav hamburger menu opens a PDF for some reason. I need to lie down.”
Ask the Maker
Questions answered by @alex_builds
What's the tech stack behind this? Did you build it solo?
Built solo in about 3 weeks. Next.js 14 on the frontend, Supabase for the DB, and Vercel for deploys. The AI part uses Claude claude-sonnet-4-6 via the Anthropic API.
Do you plan to open source this or keep it proprietary?
What's the pricing model going to look like long term?
