Free and open first
Best AI Red Teaming Tools in 2026
AI red teaming tools help you examine potential weaknesses in AI systems through security testing. Compare the target systems and attack categories each entry covers, then consider automation, support for custom tests, deployment, and continuous monitoring. Report exports can matter when you need to share findings, while free-plan availability and paid-from pricing add context about access and cost. The entries include AgentSeal, OpenSecureAI Scanner, and Promptfoo, alongside RedAmon and Confident AI. Check the listed capabilities against the systems you need to assess and whether your work calls for repeat monitoring or specific tests.
- 27 apps
- Research read 23 Sept 2026
- How the order is worked out
- 1
AgentSeal
Free plan Open source APILinuxMac+3Choose AgentSeal if you need to scan prompts, audit MCP servers or monitor agent configuration, especially in CI or an offline local setup.
- 2
Giskard
Free plan Open source APILinuxSelf-hosted+1 - 3
OpenSecureAI Scanner
Free plan Open source APILinuxMac+3OpenSecureAI Scanner offers several ways to check untrusted text, with additional hosted detections for authenticated scans.
- 4
Promptfoo
Free plan Open source APILinuxMac+3Promptfoo combines prompt evaluation with red-team testing and a broad provider and integration list.
- 5
garak
Free plan LinuxMacSelf-hosted+1garak provides configurable, automated probing for language-model weaknesses across a range of integrations. Its text-only assessment scope is important for anyone evaluating broader model outputs.
- 6
Advent Prompt Pwn
Free plan APILinuxMac+1Choose Advent Prompt Pwn if you need an open-source toolkit for authorized adversarial assessments with explicit scope controls and structured reports.
- 7
Confident AI
Free plan APISelf-hostedWebConfident AI brings development evaluations, production tracing, alerting, and safety testing into one platform. The free plan has defined usage limits, while paid plans start at $200 per month.
- 8
Darkhunt AI Security
Free plan APISelf-hostedWeb - 9
DeepTeam
Free plan APISelf-hostedChoose DeepTeam for open-source LLM red teaming with broad vulnerability coverage and integrations for development pipelines. Its dynamic attacks and standards support structured security checks.
- 10
ProofLayer
Free plan APILinuxSelf-hosted+1Choose ProofLayer Community for a free, MIT-licensed scanner with broad checks for coding agents and MCP servers.
- 11
PyRIT
Free plan APILinuxSelf-hosted+1PyRIT combines attack strategies, repeatable scenarios, and configurable scoring for generative AI assessments.
- 12
RedAmon
Free plan APILinuxMac+3RedAmon brings reconnaissance, scanning, and AI-driven operations together in a self-hosted framework. Review its macOS scanning limitation and database credential warning before deployment.
- 13
PromptRedTeam
Free plan APISelf-hostedWebPromptRedTeam provides multiple detection checks and a hosted API or self-hosted option for screening LLM inputs.
- 14
NVADER
Free plan WebNVADER focuses on automated security scans for AI-related apps, code, agents, and dependencies, with severity-ranked findings and framework mappings.
- 15
RedFang
Free plan APIWebPick RedFang if you want a cloud scanner focused on AI agents, repositories and application URLs, with clear findings and reproduction material.
- 16
RedLens AI
Free plan APISelf-hostedWebChoose RedLens AI if you need automated adversarial assessments with report exports, framework mappings, and recurring retests.
- 17
Rogue
Free plan Self-hostedChoose Rogue if you need a self-hosted way to evaluate agent behavior and run security scans with risk scores and compliance mappings.
- 18
KonaRed
Paid APISelf-hostedKonaRed combines automated adversarial assessments with category-based reporting and tracking for production AI systems.
- 19
Mindgard
Paid APIExtensionWebMindgard covers AI discovery, adversarial assessment, and runtime defense, with findings that can be routed into enterprise workflows.
- 20
Prompt Fuzzer
Paid LinuxMacSelf-hosted+1Choose Prompt Fuzzer if you build AI applications and need to probe system prompts with automated attacks across multiple testing modes.
- 21
Aevrin AI Red Teaming
PaidAevrin AI Red Teaming combines broad adversarial testing with a runtime policy firewall for chatbots. Buyers will need to request pricing and confirm availability before evaluating it further.
- 22
HouYi
Paid Self-hostedHouYi provides a self-hosted way to run prompt injection tests, with a demo and an example harness. Custom targets require integration work and an OpenAI API key.
- 23
RedHub Prompt Injection Red Team Kit
Paid Self-hostedThis kit offers offline, repeatable prompt-injection checks with CI gating and mapped remediation material. A ship result covers only the tested patterns, not immunity.
- 24
RedShield AI
Paid WebRedShield AI combines configurable attack campaigns, adaptive probing, live findings, and graded PDF reports.
- 25
VirtueRed
Paid WebVirtueRed combines continuous AI red-teaming with custom tests and reporting for security, risk, and compliance reviews.
#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price