Bruno vs Postman vs Insomnia: Which API Client to Pick in 2026
Postman went cloud-first with a mandatory login — teams are migrating in droves. A 2026 comparison of three API clients: Postman (powerful but cloud-first and vendor lock-in), Bruno (open-source, offline, collections as .bru files in git), and Insomnia. A matrix, what matters for QA, and how to move off Postman.