Gatling vs Insomnia

Gatling is a load-testing and performance engineering platform for simulating traffic and finding performance bottlenecks. Tests can be written in code, generated with a no-code tool or imported from Postman. Scenarios support Java, JavaScript, TypeScript, Scala and Kotlin. The load engine supports HTTP out of the box and JMS, and can be extended for other protocols. The listing includes API and stress testing, distributed load and hybrid deployment; browser-based testing is marked unsupported. Gatling Studio is a native application that runs locally on macOS, Windows and Linux. Enterprise Edition adds a web interface for managing and monitoring tests, live dashboards, CI/CD integration, advanced permissions and hybrid or cloud deployment. Listed integrations include GitHub Actions, Jenkins, GitLab CI, Azure DevOps, Datadog, Dynatrace, New Relic, Slack and Microsoft Teams. Gatling says it is SOC 2 Type II certified and encrypts traffic in transit and stored data at rest. A free plan is available. Basic (annual) is €89 a year, billed annually; Enterprise has a free 14-day trial without a credit card.

Insomnia is an API collaboration platform for designing, testing, debugging, mocking, and governing APIs. Its client supports HTTP, REST, gRPC, GraphQL, WebSockets, SOAP, and SSE. Design workflows include OpenAPI spec-first work, live previews, and generation of collections, tests, and mocks. Mocks can be generated from collections, OpenAPI specifications, API responses, or natural-language descriptions, locally or in the cloud. The collection runner supports unlimited runs, JavaScript before-request and after-response scripts, chained requests, and CI/CD execution through Inso CLI. Insomnia also connects to HTTP and STDIO MCP servers, supports custom tool parameters, and provides MCP authentication event logs. API data can stay local, reside in a Git repository, or be stored in Insomnia Cloud with optional end-to-end encryption. Teams can share projects, collections, mocks, and design specifications with organization controls and real-time collaboration indicators. Essentials is free; Pro is $12 a month per user, and Enterprise is $45 a month per user. It supports Linux, macOS, Windows, and self-hosted use.