heal.dev

heal.dev is an automated testing tool that runs applications in a production-like sandbox to find runtime bugs and vulnerabilities.

Heal is an automated bug hunter that executes applications in a production-like sandbox to discover runtime bugs, vulnerabilities, and performance issues that code reviews miss. It learns how to run the application, maps the architecture, mocks third-party services, and verifies defects by generating a failing test for each issue found. The software tests integrations, handles edge cases, crawls links, and fires exploits to report only reproducible defects. It is designed for development teams to run locally or in the cloud before a release or on a weekly schedule. Each defect report includes reproduction steps, captures, and a failing test that turns green once fixed.

heal.dev at a glance

Best for: Software engineer
Runs on: Web, CLI
Pricing: Free trial
Released: October 2026
Category: AI coding tool
Website: heal.dev

Key features

Builds a production-like sandbox environment
Finds reproducible bugs and runtime vulnerabilities
Generates a failing test for each defect
Mocks payments, mail, and third-party APIs
Crawls every link across the running application
Fires exploits at the sandbox to validate security issues
Runs locally or in the cloud

Use it for

Hunting for runtime bugs and vulnerabilities
Testing untested integrations and edge cases
Validating security issues with real exploits
Crawling links to find missing routes
Generating failing tests for code defects

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