Altair provides the option to open multiple windows each with a distinct state that is preserved across browser sessions. In addition, you can give each window a custom name.
Syntax and Error Highlighting
With syntax highlighting, you have immediate feedback on what you input in the query editor and can easily detect errors. The editor also affords folding of query objects.
You need not dive back and forth between the API docs and Altair, as intelligent query auto-suggestion is provided by Altair.
Altair fetches the docs of all endpoints and fields offered by your GraphQL server and provides a rich interface to conveniently search through these and gain instant insight into the structure of the API.
Headers and Response Stats
Altair provides flexibility by allowing you to set custom request headers. Also, the response status code and time taken are available upon completion of the request.
Variables and Fragments
Altair provides convenient support for setting GraphQL variables. You can also add fragments in the code editor and reference them within the parent query. Fragments can also be added from the docs bar.
Add Queries and Fragments
You can easily add a query (or fragment) you see in the documentation into the editor without having to manually type every field within the query. This makes it easier to test and develop with the available queries from the GraphQL server.
You can format the query in the editor in a properly indented manner for easier reading. This makes it easy to work with queries you might copy from one file to another, which might have lost their indentation (or were never indented before).
You can compress the query to a minified form, removing any unnecessary whitespace and comments. You can use this after you have made a query and you want to use it in your client side application. This helps save as many bytes as possible when making network requests.
History of recent queries
You can view a list of your most recent queries that you make in each window, so you can easily go back to a query you tried previously.
GraphQL Subscriptions (with desktop notifications)
You can test your GraphQL subscriptions easily and also get a notification when you are away from the app (desktop apps only). This is very handy when developing apps that use the realtime feature of GraphQL, like chatting ang gaming applications that need realtime feedback.
Import and Export Queries
You can export the query you are working on and import the .agq file into another device (also supports drag and drop). This is also useful for sharing queries with variables and headers with other members of your team.
You can use Altair comfortably in your native language with several languages (including English, Chinese, French, Spanish, among others) supported.
You can use Altair with either the light or the dark theme, depending on which theme you like.