Craft better, craft faster

Speed up prompt engineering from idea to production — with proven frameworks, robust testing, and smooth integration into your workflow.

Best practices built-in

Take the guesswork out of prompt writing. Promposer bakes in industry-proven frameworks and reusable templates, so you can follow what works and avoid rookie mistakes.

Generate test cases in seconds

Create realistic test scenarios and edge cases with just a few clicks. Add tools, user contexts, and tasks to cover real-world conditions effortlessly.

Parallel tests, one click

Run dozens of variations at once — with different user inputs, contexts, and model configurations. Quickly find what works best.

Insights that matter

Get clear, actionable feedback on how your prompts perform. Understand failure points, edge cases, and where you can tighten up your instructions.

Works with any top LLM

Choose from a wide range of popular AI models from leading providers — so you can compare and deploy wherever you want.

Right in your IDE

Stay in flow. Use the VS Code extension (or any VSIX-compatible IDE) to compose, test, and refine prompts without leaving your development environment.

Privacy Mode

Keep your work and data private. Prompts and test results are processed securely and stored only on your machine.

Bring your own API keys

Save money and stay flexible. Connect your own API keys to run tests on your preferred AI models without extra fees.

REST API ready

Integrate Promposer with your CI/CD or custom workflows. Automate tests, evaluations, and reports right from your pipeline.

Real-time thread review

Hook your production LLM chats into our API for instant assessments — pinpoint issues like unclear instructions or missing tools and get actionable recommendations, fast.