AppCheck vs Nuclei
AppCheck
appcheck-ng.com
Nuclei
nuclei.projectdiscovery.ioSide by side
| Figure | AppCheck | Nuclei |
|---|---|---|
| Price from | — | Free |
| Free plan | — | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | — |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| API | Yes | — |
| Self-hosted | Yes | Yes |
| Plans published | 1 | 1 |
| Spec score · Web Application Security Scanners | 8.1 (#7) | 8.3 (#5) |
| Authentication | The web scanner supports TOTP, email MFA, bearer tokens, request signing, digest authentication and client certificates. | Nuclei supports authentication mechanisms including HTTP basic authentication and JWT token authentication. |
| Integrations | AppCheck integrates with Jira and TeamCity and provides API access for existing tools and workflows. | The project README lists Jira, Splunk, GitHub, Elastic, and GitLab integrations. |
| Purpose | AppCheck automates discovery of security flaws in websites, applications, networks and cloud infrastructure. | Nuclei is a vulnerability scanner for probing applications, infrastructure, cloud platforms, and networks using YAML templates. |
| Support | AppCheck offers UK-based support and tailored support services depending on customer requirements and technical understanding. | The open-source page says maintainers answer questions in Discord and template requests can be filed as GitHub issues. |
Plans
In their own words
Nuclei
Nuclei is a free, open-source vulnerability scanner for applications, infrastructure, cloud platforms, and networks. It uses YAML templates to define checks, drawing on more than 6,500 community-contributed templates; users can also create custom templates. Bulk and parallel scans, multiple target formats, and inclusion and exclusion filters are supported. Modules cover HTTP, DNS, TCP, headless, JavaScript, code, and file scanning, and authentication options include HTTP basic authentication and JWT. Nuclei can run in CI/CD pipelines, including through GitHub Actions, and export SARIF results to GitHub Code Scanning. It is distributed under the MIT License and is primarily a standalone CLI tool, with installation options including Go, Homebrew, Docker, GitHub, downloadable binaries, and Helm. It is actively developed, but has no LTS or stable version, so updates may bring breaking changes. Some templates can fuzz or take actions that risk denial of service; these are tagged and excluded from default scans. The tool is intended for security engineers, analysts, red teams, DevOps teams, bug bounty hunters, and penetration testers.