Best Automated Testing Software for Claude Code

Engineering teams shipping with AI have a new bottleneck: validation. Code output has accelerated. Quality hasn't. Checksum closes the gap. Checksum is a continuous quality platform with a suite of AI agents that handle testing end-to-end, at every stage of the development lifecycle. Where most tools wait for a human to trigger them, Checksum runs autonomously in the background, generating tests, executing them, and repairing failures without manual intervention. Seventy percent of test failures are resolved automatically through real-time auto-recovery. The platform covers every layer: end-to-end UI flows via Playwright, API endpoint chains, and targeted CI tests scoped to exactly what changed in a PR. All tests land as real code in your repository and are delivered as standard Playwright, owned by your team. Checksum is fine-tuned on 1.5+ million test runs and integrates natively with Cursor, Claude Code, and 100+ AI coding agents. Type /checksum and your coding agent's output gets tested before it ever reaches review. Generation and healing happen on Checksum's cloud infrastructure which means no LLM tokens consumed, no local resources required. The result: test suites that stay green as the product evolves, fewer regressions reaching production, and release confidence that scales alongside AI output.

StackHawk evaluates your active applications, services, and APIs for potential security flaws introduced by your team, as well as for vulnerabilities in open-source components that could be exploited. In today's engineering landscape, automated testing suites integrated within CI/CD processes have become standard practice. So, why should application security not follow suit? StackHawk is designed to identify vulnerabilities right within your development pipeline. The phrase "built for developers" embodies the core philosophy of StackHawk, emphasizing the importance of integrating security into the development process. As application security evolves to keep pace with the rapid tempo of modern engineering teams, developers require tools that enable them to assess and remediate security issues effectively. With StackHawk, security can advance in tandem with development, allowing teams to detect vulnerabilities at the stage of pull requests and implement fixes swiftly, whereas traditional security tools often lag behind, waiting for manual scans to be initiated. This tool not only meets the needs of developers but is also backed by the most widely adopted open-source security scanner available, ensuring it remains a favorite among users. Ultimately, StackHawk empowers developers to embrace security as an integral part of their workflow.