# Joi Security vs Start Left® IaC Security: side-by-side comparison (2026)

[Joi Security](https://cybersectools.com/tools/joi-security) is a free [static application security testing](https://cybersectools.com/categories/sast) solution. [Start Left® IaC Security](https://cybersectools.com/tools/start-leftr-iac-security) is a commercial [static application security testing](https://cybersectools.com/categories/sast) solution by [Start Left® Security](https://cybersectools.com/companies/start-leftr-security). Features, integrations, deployment and the company behind each one, side by side.

Need the answer fast? [Best SAST Solutions for Business](https://cybersectools.com/shortlists/best-sast-solutions) picks Checkmarx One Application Security Platform, Veracode Application Risk Management Platform, OpenText Fortify SAST and 4 more.

## Side-by-side comparison

| | Joi Security | Start Left® IaC Security |
|---|---|---|
| Pricing model | Free | Commercial |
| Category | Static Application Security Testing | Static Application Security Testing |
| Verified | No | No |
| Deployment type | On-Premises | Cloud |
| Company size fit | Startup, SMB, Mid-Market | SMB, Mid-Market, Enterprise |
| GitHub stars | 44 | – |
| Last commit | Jan 2024 | – |
| Company | – | Start Left® Security |
| Headquarters | – | – |

### Use cases and capabilities

| | Joi Security | Start Left® IaC Security |
|---|---|---|
| SQL Injection | Yes | – |
| SSRF | Yes | – |
| Node.js | Yes | – |
| XSS | Yes | – |
| RCE | Yes | – |
| Infrastructure as Code | – | Yes |
| Misconfiguration | – | Yes |
| DevSecOps | – | Yes |
| CI/CD | – | Yes |
| Secure Development | – | Yes |

### Core features

**Joi Security**

No features listed.

**Start Left® IaC Security**

4 features listed. Sign in on the page to see them.

## Which one fits you

Based on what each listing shows: deployment, company size, price and open source.

- [Joi Security](https://cybersectools.com/tools/joi-security) fits if you need to run it on your own servers, you are a startup, you need a free product and you want an open-source product.
- [Start Left® IaC Security](https://cybersectools.com/tools/start-leftr-iac-security) fits if you want a cloud product and you are an enterprise.

## Joi Security vs Start Left® IaC Security FAQ

Common questions when comparing Joi Security vs Start Left® IaC Security for static application security testing.

### What is the difference between Joi Security and Start Left® IaC Security?

**Joi Security**: A CLI tool that performs security assessments on Joi validator schemas by testing them against various attack vectors including XSS, SQL injection, RCE, and SSRF.

**Start Left® IaC Security**: Scans IaC templates for misconfigs and vulns before deployment. Built by Start Left® Security.

The table above shows where their features, integrations, deployment and company size fit differ.

### Who makes Joi Security and Start Left® IaC Security?

**Joi Security** is open-source with 44 GitHub stars. **Start Left® IaC Security** is made by Start Left® Security. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is Joi Security a good alternative to Start Left® IaC Security?

Often, yes. Joi Security and Start Left® IaC Security are both Static Application Security Testing products. Key differences: Joi Security is Free while Start Left® IaC Security is Commercial, Joi Security is open-source. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Joi Security vs Aikido Infrastructure as Code (IaC)](https://cybersectools.com/compare/aikido-infrastructure-as-code-iac-vs-joi-security)
- [Joi Security vs Meterian ISAAC](https://cybersectools.com/compare/joi-security-vs-meterian-isaac)
- [Joi Security vs QuestorAI](https://cybersectools.com/compare/joi-security-vs-questorai-vulndna)
- [Start Left® IaC Security vs Aikido Infrastructure as Code (IaC)](https://cybersectools.com/compare/aikido-infrastructure-as-code-iac-vs-start-leftr-iac-security)
- [Start Left® IaC Security vs Meterian ISAAC](https://cybersectools.com/compare/meterian-isaac-vs-start-leftr-iac-security)
- [Start Left® IaC Security vs QuestorAI](https://cybersectools.com/compare/questorai-vulndna-vs-start-leftr-iac-security)

## Alternatives to each

- [See all Joi Security alternatives](https://cybersectools.com/alternatives/joi-security)
- [See all Start Left® IaC Security alternatives](https://cybersectools.com/alternatives/start-leftr-iac-security)

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Source: https://cybersectools.com/compare/joi-security-vs-start-leftr-iac-security

For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/joi-security.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md.

More on Joi Security and Start Left® IaC Security: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=compare-md