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NeMo Guardrails

by NVIDIA

Firm guardrails for your chatbot

Toolkit for programmable guardrails: keeps chatbots on topic, masks personal data and blocks jailbreaks.

Open SourceTrust 100For prosPython · Linux · macOS · Windows
Get it via OROBO

Checked sourcegithub.com/NVIDIA-NeMo/GuardrailsMaker’s own licencechecked 10 hours agoGitHub lists a SHA-256 checksum for every release file.

Have it set up for you instead:Request setup by OROBOOr start with the AI Compass: a written assessment at a fixed price of €490 (businesses only).

How it runs for you

Simulation starting …

Illustration, not a real test run

What you get

What you get

  1. 01Keeps conversations on your topic
  2. 02Masks personal data in inputs and outputs
  3. 03Blocks jailbreak attempts

For you if …

  • Developers of chat and support apps
  • Teams with clear conversation rules

Pick something else if …

  • If you just want a quick filter via API

How to start

In three steps.

What you need
  • Python
  • An LLM, local or via API
  1. 1Install with pip install nemoguardrails
  2. 2Define rules in config.yml and Colang
  3. 3Route your app through the guardrails layer

Part of these packages

NeMo Guardrails works together with other software.

Use AI safely

Your team uses AI — with far less risk of data leaks or hijacked chatbots.

5 stepsone day for the basicsMedium

Safety check

7 of 7 checks passed

No known malicious patterns in the install instructionsactively maintainedMaker’s own licence

Trust 100
Who is behind it?
  • Taken by OROBO from the official source. The maker has not joined OROBO yet.
Is the code clean?
  • Source code publicly visible
  • Maker’s own licence
  • No known malicious patterns in the install instructions
Is it maintained?
  • Website reachable
  • Updated today
Technical details & what we don’t check
  • Website loads fast
  • Website protection settings: 5 of 6 (website only, not the software)HSTS, CSP, nosniff, Frame-Schutz, Referrer-Policy

Claims about protection come from the maker. The trust score checks public signals, not effectiveness.

We automatically check origin, code patterns, licence, maintenance and reachability — again every day. We do not check whether the software fits your purpose, how it handles your data, or whether it works without errors. Last checked 10 hours ago. How OROBO checks

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Goes well with

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Facts

AreaMake it safe
PriceOpen Source
LicenceMaker’s own licence
Runs onPython, Linux, macOS, Windows
Popular with developers★ 7,433 GitHub
Last updated04 Nov 2026
SourceNVIDIA-NeMo/Guardrails ↗
I am the maker