GraphQL using Hasura.io

The Hasura graphql client

Pros

It's free

It's lightweight and runs in the browser

It offers simplified header management for your bearer tokens and x-org values

It provides strong Introspection hints (see "Explorer" mode as illustrated in the screenshot below).

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Cons

Because it is browser based, it's not the greatest option for saving your work and sharing or re-visting them later because the session cookies can expire and your work and settings won't be saved.