
Runtime security that stops prompt injection and data leaks in LLM apps
12 alternatives to Rails Guard, matched by what they do.
| Rank | Tool & Tagline | Official Domain |
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| MoM Growth |
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| Pricing Model |
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| ● | Rails Guard | railsguard.hoop.dev | 0 | 0 (0%) | Contact for Pricing | Global | 4.4 | Profile |
| 1 | Lakera Guard | lakera.ai | 88.44K | -27.96K (-24%) | Contact for Pricing | United States | 4.6 | Compare |
| 2 | Aikido Security | aikido.dev | 757.49K | 66.27K (+9.6%) | Freemium | United States | 4.4 | Compare |
| 3 | CybeDefend | cybedefend.com | 7.64K | 2.09K (+37.6%) | Freemium, Contact for Pricing, Free | United States | 4.1 | Compare |
| 4 | Datadog | datadoghq.com | 5.18M | -263.56K (-4.8%) | Freemium, Free Trial, Paid, Contact for Pricing, Free | United States | 4.7 | Compare |
| 5 | GPT Guard | gptguard.ai | 939 | 71 (+8.2%) | Freemium, Contact for Pricing | Spain | 4.2 | Compare |
| 6 | Mindgard | mindgard.ai | 153.46K | 1.96K (+1.3%) | Contact for Pricing | United States | 4.3 | Compare |
| 7 | Command Code | commandcode.ai | 2.36M | -325.7K (-12.1%) | Freemium, Contact for Pricing | China | 4.3 | Compare |
| 8 | Privaro | privaro.ai | 5.94K | 943 (+18.9%) | Paid (volume-based subscription, 14-day free trial) | Spain | 4.2 | Compare |
| 9 | Middleware | middleware.io | 35.97K | -5.05K (-12.3%) | Freemium, Contact for Pricing | India | 4.3 | Compare |
| 10 | Rerun | rerun.io | 54.02K | -16.78K (-23.7%) | Free | United States | 4.6 | Compare |
| 11 | Termdock | termdock.com | 64.76K | -20.74K (-24.3%) | Free | United States | 4.3 | Compare |
| 12 | CodeThreat | codethreat.com | 674 | -1.61K (-70.5%) | Freemium, Contact for Pricing | Brazil | 4.4 | Compare |

Runtime security that stops prompt injection and data leaks in LLM apps

Free / Open-sourceAll-in-one AppSec platform that finds and auto-fixes vulnerabilities
Free / Open-sourceAll-in-one AppSec platform that finds and auto-fixes vulnerabilities

Free / Open-sourceThe security brain that keeps AI coding agents inside your rules
Free / Open-sourceThe security brain that keeps AI coding agents inside your rules
Free / Open-sourceUnified observability, security and incident response for cloud-scale engineering teams
Free / Open-sourceUnified observability, security and incident response for cloud-scale engineering teams

Free / Open-sourceChat with AI on enterprise documents without leaking sensitive data
Free / Open-sourceChat with AI on enterprise documents without leaking sensitive data

Attack-led AI security testing and red teaming
Attack-led AI security testing and red teaming

Free / Open-sourceThe coding agent that learns your coding taste
Free / Open-sourceThe coding agent that learns your coding taste

Free / Open-sourceAI governance and PII protection for every LLM interaction
Free / Open-sourceAI governance and PII protection for every LLM interaction
Free / Open-sourceFull-stack observability with an AI SRE agent that fixes issues
Free / Open-sourceFull-stack observability with an AI SRE agent that fixes issues

Free / Open-sourceThe open-source data layer for robotics and physical AI

Free / Open-sourceConnect your AI agents across machines
Free / Open-sourceConnect your AI agents across machines
Free / Open-sourceAI-native SAST that reviews your pull requests and cuts the false-positive noise
Free / Open-sourceAI-native SAST that reviews your pull requests and cuts the false-positive noise