Azurite vs Servirtium

Azurite is a free, open-source server emulator for trying Azure Storage APIs on a local machine. Azurite V3 supports Blob and Queue storage, while Table storage is marked preview. Blob functionality includes containers, block and page blobs, service properties, and CRC-64/NVME transactional checksum checks for specified writes. Queue operations cover creating queues and putting, getting, peeking, updating, deleting, and clearing messages. Documented authentication includes Shared Key, account and service SAS, OAuth, and supported public access. It works with Azure Storage SDKs, Azure CLI, and Storage Explorer. Installation options are npm, Docker, a Visual Studio Code extension, or cloning and building the source. The npm route supports Windows, Linux, and macOS with supported Node.js LTS versions. Local hosts, ports, workspace, and optional in-memory persistence are configurable. Telemetry is enabled by default, with an execution-level disable option. It uses the MIT License.

Servirtium is an open-source testing library and command-line tool for recording HTTP interactions and replaying them offline. Saved interactions, called tapes, use readable Markdown that can include requests, responses, headers and bodies, making them shareable across languages and reviewable in Git diffs. A native record-and-replay engine has bindings for Go, Python, Java, .NET, Rust, Ruby, JavaScript and TypeScript, Dart, PHP, Haskell, Elixir, Pharo, Nim, Zig, Lua, Erlang and Gleam. It works with any unit-test or specification framework. The standalone CLI can serve tapes as HTTP stubs, lint them, and import or export HTTP Archive files, including captures from Chrome DevTools, Fiddler, Charles, mitmproxy and Postman. Redaction and tape normalization address transient values such as IDs and timestamps. Playback requires matching request headers and bodies unless masking is applied. Servirtium targets test automation, not production service replacement, and is available for API, Linux, macOS and self-hosted use.