Best indie Mac apps for

API Client

API clients are common tools for developers building, debugging, and documenting web services.

Our pick

Bruno

Offline-first open-source API client.

Best for
Open-source API client
Mac support
Mac + other desktops
Free option
Yes
One-time purchase
No
Made by
Open source

A Git-friendly API client that stores collections as files and works without cloud lock-in.

Best free option

Yaak

Modern API client for HTTP, GraphQL, and gRPC.

Best for
Modern API testing
Mac support
Mac + other desktops
Free option
Yes
One-time purchase
No
Made by
Indie / open source

A fast API client with a clean interface for HTTP requests, environments, and developer workflows.

Power pick

HTTPie

API testing client with a friendly interface.

Best for
Friendly API testing
Mac support
Mac + other desktops
Free option
Yes
One-time purchase
No
Made by
HTTPie

A polished API client and CLI ecosystem for testing HTTP APIs and sharing requests.

Lightweight pick

Insomnia

API client for REST, GraphQL, and gRPC.

Best for
Full API workspace
Mac support
Mac + other desktops
Free option
Yes
One-time purchase
No
Made by
Kong

A full-featured API client for requests, environments, collections, authentication, and team workflows.

Alternative

HTTP Toolkit

Inspect, debug, mock, and test HTTP traffic.

Best for
HTTP debugging
Mac support
macOS, Windows, Linux
Free option
Yes
One-time purchase
No
Made by
Tim Perry

HTTP Toolkit is an open-source desktop tool for API testing and traffic inspection across local apps and services.