LLMWare vs 
Promptfoo
LLMWare vs Promptfoo compared for 2026 — features, license, ease of use, performance and which one to choose. Enterprise RAG with small specialised models vs Unit tests for your prompts.
Updated regularly · curated by OpenSourceAI.tech
LLMWare vs Promptfoo at a glance
| Spec | LLMWare | Promptfoo |
|---|---|---|
| Category | LLM / RAG framework | LLM / RAG framework |
| Type | RAG framework | Prompt testing |
| License | Apache-2.0 | MIT |
| Runs locally | Yes | Yes |
| Primary language | Python | TypeScript |
| Ease of use | Intermediate | Beginner |
| Best for | private RAG on modest hardware | teams shipping prompts to production |
| GitHub stars | 14.8k | 23.3k |
How LLMWare and Promptfoo score
| Criterion | LLMWare | Promptfoo |
|---|---|---|
| Popularity | 3.0 | 3.5 |
| Maintenance | 4.5 | 5.0 |
| Ease of use | 3.5 | 5.0 |
| Privacy | 5.0 | 5.0 |
| License freedom | 5.0 | 5.0 |
Scores are computed automatically from public signals — GitHub stars (popularity), recent commit activity (maintenance), license type (freedom), local-first design (privacy) and onboarding complexity (ease of use). Indicative, not a verdict.
What each one is
LLMWare
LLMWare focuses on RAG pipelines built from small, specialised models that run on CPU, aimed at private enterprise deployments.
- Runs specialised small models on CPU
- Complete RAG pipeline out of the box
- Built for private deployments
Promptfoo
Promptfoo runs your prompts against test cases across models, catching regressions before they reach production, and includes red-teaming checks.
- Regression tests for prompts
- Compares models side by side
- Built-in security red-teaming
Key differences
LLMWare is rAG framework, while Promptfoo is prompt testing. Their licenses differ (Apache-2.0 vs MIT), which matters if you ship a commercial product. LLMWare leans more intermediate-friendly, whereas Promptfoo is more suited to beginner users. In short, LLMWare fits private RAG on modest hardware, and Promptfoo fits teams shipping prompts to production.
Which should you choose?
Choose LLMWare for private RAG on modest hardware. Choose Promptfoo for teams shipping prompts to production.
There is rarely one winner — many setups use both. The right pick depends on your hardware, your team's skills, and whether you value simplicity or control.
Frequently asked questions
Is LLMWare or Promptfoo easier to use?
Promptfoo is generally the easier of the two to get started with, while LLMWare rewards more setup with more control.
Are LLMWare and Promptfoo free?
LLMWare is free and open source (Apache-2.0), and Promptfoo is free and open source (MIT). Neither charges for the core software.
Can I run LLMWare and Promptfoo locally?
LLMWare: yes · Promptfoo: yes. Both can be used without sending your data to a third-party cloud where their setup allows.
LLMWare vs Promptfoo — which should I pick in 2026?
Choose LLMWare for private RAG on modest hardware. Choose Promptfoo for teams shipping prompts to production.
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