BitDive vs Pact
BitDive
bitdive.io
Pact
pact.ioSide by side
| Figure | BitDive | Pact |
|---|---|---|
| Price from | Free | $115.42/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | — |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 2 | 5 |
| Spec score · Contract Testing Tools | 8.0 (#11) | 8.7 (#2) |
| Integrations | The integrations page lists 49 supported technologies, including Java, Kotlin, Spring Boot, PostgreSQL, MongoDB, Kafka, JUnit 5, Testcontainers, and Maven. | PactFlow's Bi-Directional Contract Testing integrates with OpenAPI and lists Cypress, Postman and Wiremock as tools for writing contracts. |
| Intended users | BitDive describes its intended audience as modern JVM engineering teams verifying changes against real service behavior. | PactFlow describes its service as supporting teams building microservices, messaging systems or cloud-native systems. |
| Purpose | BitDive captures runtime behavior from Java and Kotlin services and turns recorded executions into replay-based JUnit suites for verifying code changes. | Pact is a code-first tool for testing HTTP and message integrations with contract tests. |
| Security | The security page specifies TLS 1.3 in transit, AES-256 at rest, and masking of sensitive fields inside the JVM before data leaves it. | PactFlow says it encrypts data at rest with AES-256, enforces TLS 1.2 or higher, and stores data and backups in AWS Sydney. |
Plans
Pact
- PactFlow StarterFree
- Pact open-source toolingFree
- PactFlow Team (yearly)$115.42 a month
- PactFlow Team (monthly)$127 a month
- PactFlow EnterprisePriced on request
In their own words
BitDive
BitDive is a freemium API, web, and self-hosted tool for Java and Kotlin teams that want to verify code changes against recorded service behavior. Its agent captures method calls, SQL queries, HTTP requests, Kafka messages, JVM metrics, and exception traces, then compares behavior before and after changes to reveal SQL drift, extra HTTP calls, and performance regressions. Recorded executions become replayable JUnit 5 tests that run with standard Maven or Gradle tooling. The agent supports Java 8 through 21 and captures bytecode behavior without source changes. BitDive exposes runtime context and trace operations through MCP for Cursor, Windsurf, and Claude. It lists 49 supported technologies, including Spring Boot, PostgreSQL, MongoDB, Kafka, JUnit 5, Testcontainers, and Maven. Deployment options include hosted SaaS, on-premise, and air-gapped installations. Security details specify TLS 1.3 in transit, AES-256 at rest, and in-JVM masking of sensitive fields. Developer Use costs nothing; Company Rollout pricing is custom.
Pact
Pact is a free, code-first tool for testing HTTP and message integrations with contract tests. Automated consumer tests create contracts describing concrete interactions between consumer and provider applications. Teams can then test each side in isolation against that shared contract, without deploying the entire system. Pact implementations are available for more than 10 languages, including JavaScript, Java, .NET, Go, Python, Ruby, Swift and Objective-C, Scala, Rust, PHP, and C++. Its CLI includes mock and stub servers, a provider verifier, a broker client, and a plugin CLI. The open-source Pact Broker shares contracts and verification results; teams can host and administer it themselves, and use its CI/CD workflows to check whether application versions can be deployed together. The verifier supports HTTP and asynchronous and synchronous messages, while plugins include gRPC, Avro, and CSV support. Documentation includes recipes for tools and scenarios such as GraphQL, Cypress, Kafka, and AWS Lambda. Pact is most useful when teams control both consumer and provider development. The free Broker is self-hosted, leaving its security, maintenance, and upgrades to its operator.