Alternatives to Apollo Sandbox
A free web-based GraphQL explorer for writing and running queries against any GraphQL endpoint. The listings below can replace it for an important use case. Each note says what changes if you switch.
The original
Apollo Sandbox
A free web-based GraphQL explorer for writing and running queries against any GraphQL endpoint.
Replacements
Listings that take over the same core job as Apollo Sandbox.
Altair GraphQL Client
A GraphQL client for writing, sending and debugging queries on desktop, in a browser extension and online.
Altair GraphQL Client is open source with desktop apps and browser extensions, adding environments, pre-request scripts, file uploads and a plugin system beyond Apollo Sandbox's web explorer.
Hoppscotch
A fast API client that runs in a browser tab, with a self-hostable workspace if you want one.
Hoppscotch also runs in a browser tab with nothing to install, is open source under MIT, and handles REST, WebSocket and MQTT in addition to GraphQL.
Insomnia
An API client for REST, GraphQL and gRPC that can keep everything local or sync through Git instead of a cloud.
Insomnia is an open-source desktop client covering GraphQL alongside REST, gRPC and WebSockets, with local storage or Git sync instead of Apollo's hosted service.
Postman
The most widely used API client, for sending HTTP requests, organising them into collections and sharing them with a team.
Postman is a widely used desktop and browser API client with collections and scripts, but it is closed source and effectively requires an account and cloud workspace.
Firecamp
An open-source API client for testing REST, GraphQL, WebSocket and Socket.IO requests in the browser.
Firecamp is an open-source browser client that handles GraphQL along with REST, WebSocket and Socket.IO, though saving requests and collections requires an account.
Yaak
An offline-first API client for REST, GraphQL, gRPC, WebSockets and SSE, with requests stored as files you can commit to git.
Yaak is an open-source offline desktop client for GraphQL, REST, gRPC and WebSockets, storing requests as files you can commit to git, with no cloud account.
Similar software
Related functionality, not a direct replacement.
Swagger UI
Renders an OpenAPI description as interactive, testable documentation.
httpYac
A command-line and VS Code client for sending HTTP, GraphQL, SOAP and gRPC requests from files.
Kreya
Desktop client for gRPC, REST, GraphQL, WebSocket and SSE APIs.
Swagger Editor
A browser-based editor for writing OpenAPI definitions and sending live requests to the API.