Prompt Mixer

Description
🖼️ Tool Name:
Prompt Mixer
🔖 Tool Category:
Productivity & Automation / Prompt Engineering / Content Creation & Communication
✏️ What does this tool offer?
Prompt Mixer is an open-source desktop application and collaborative workspace for prompt engineering. It enables cross-functional teams—managers, data specialists, engineers—to create, test, version, and evaluate prompt chains for AI applications. It supports content generation workflows, prompt chaining, dataset integration, and multilingual LLM connectors.
⭐ What does the tool actually deliver based on user experience?
Prompt creation in Markdown with version control and iteration tracking
Chain creation with datasets to generate prompt variants automatically
Side‑by‑side testing across multiple LLM models (OpenAI, Claude, Gemini, local models via Ollama)
Built-in evaluation metrics like regex matching, semantic similarity, and custom JS/Python scripts
Collaborative editing, comments, and team coordination via sync support
🤖 Does it include automation?
Yes — Prompt Mixer automates key prompt engineering workflows such as:
Generating prompt chains and testing them across models
Automatic chaining and variant generation using datasets
Version control, prompt tagging, and iterative refinement
Outcome evaluation with automated metrics and model comparison
💰 Pricing Model:
Free Plan: ✅ Yes — all main features are available for free (open-source)
Team Plan: From ~$29/month — adds collaboration sync, AI features, and team support
Enterprise Plan: Custom pricing — includes SSO, role-based access, API deployment
Free Trial: ✅ Built-in — free access to full open-source tooling; paid tiers optional
🧭 Access Method:
Available as a desktop application (downloadable from promptmixer.dev). Source code is hosted on GitHub. Documentation and connectors to various LLM services (OpenAI, Anthropic Claude, Ollama, Gemini, etc.) are available. No cloud signup required for core usage.