moder8.net: An Automated Content Moderation Tool
moder8.net is a free Prompt Development & Testing tool for performing automated moderation of user generated content using an LLM as the moderation engine.
Instead of a SaaS black box, you develop your own moderation prompts to flag harmful content into one or more of twelve categories plus additional brand protection.
Using the gemini-2.5-flash-lite model it costs less than $0.10 to moderate 1,000 submissions though of course you are free to run your moderation prompt against any model.
Testing results are summarised in the Dashboard:
A comprehensive suite of predefined tests help you refine and regression test your prompts.
Each test returns not just any violations but a complete token and price breakdown and the latency of the moderation API call. moder8 is hosted on a shared VPS at the moment so the current latency is not indicative of future versions.
Once you have refined the full moderation prompt you can easily copy and paste it into your own moderation pipeline. It is stack agnostic.