Intuitive Prompt Editor With Real Time Guidance

via “prompt engineering ide with variable interpolation and testing”

Open-source LLM app platform — prompt IDE, RAG, agents, workflows, knowledge base management.

Unique: Provides a visual prompt editor with built-in testing against multiple LLM providers, variable interpolation, and prompt versioning — enabling non-technical users to iterate on prompts without code while comparing quality and cost across providers.

vs others: More user-friendly than prompt.dev or Promptfoo because it's integrated into the full application platform; more comprehensive than simple text editors because it includes multi-provider testing and cost tracking; more flexible than hardcoded prompts because variables can be bound at runtime.