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Promptfoo vs DeepEval: catalog facts
Promptfoo	DeepEval
Freemium The open-source CLI is free; enterprise features are sold separately.	Free The framework is free and open source.
Command line	Command line
Runs from the command line with a single npx command Compares prompts and models side by side	Treats LLM output checks like unit tests Very active development with a large user base
Red-teaming features are intended for authorized testing of your own applications Some reporting features belong to the paid enterprise edition	Aimed at developers comfortable with Python code Evaluations that rely on a judge model may need API access to one
Downloadable app	Downloadable app
Open source	Open source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 26, 2026	Official website Full listing and sources Checked September 26, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.