PROMPTPurify
Tiny prompt-injection firewall for LLM chat apps. 14 MB.
About PROMPTPurify
Every OSS prompt injection guard needs a GPU, a sidecar, or 7 GB of disk. PromptPurify is 14 MB, CPU-only, runs inside your Node process. Zero network calls. $0/call. Two layers: deterministic structural firewall + 14 MB ML classifier. Benchmarked against Meta Prompt-Guard, ProtectAI, deepset same inputs, same scoring code, reproducible on your laptop. Battle-tested by 2,458 red teamers before release. MIT. Drop in with 3 lines of code.
What you should know about PROMPTPurify
PROMPTPurify — Tiny prompt-injection firewall for LLM chat apps. 14 MB.. It is categorized under Productivity . On Product Hunt, this tool has received 3 upvotes from the maker community.
Pricing & licensing: Pricing details are not publicly disclosed at the moment .
Use cases & topics: PROMPTPurify is associated with the following topics: Open Source, GitHub. Teams working in Open Source / GitHub spaces typically evaluate this kind of tool when scoping new architecture decisions or replacing legacy components.
Getting started: Visit the official site to sign up, explore pricing tiers, and start onboarding your team. Most teams hit value within the first week if the tool aligns with their existing Productivity stack.
Editor's note from Fanny Engriana (Founder, Wardigi Digital Agency): when evaluating tools in the Productivity category for our agency clients, we look at three things first — license clarity, community size, and active maintenance. Tools with explicit license terms and ongoing commits tend to remain viable across multi-year projects.