Question 1

Is this a real GraphQL parser or just a text pretty-printer?

Accepted Answer

It uses a full GraphQL parser that produces an AST (Abstract Syntax Tree), so it understands queries, mutations, subscriptions, fragments, directives, and variable definitions — not just whitespace. That is why it can flag a missing closing brace or an undefined fragment spread instead of only indenting whatever you give it.

Question 2

Will it run my query against a server?

Accepted Answer

No. The tool only parses and prints; it never sends a network request, so it is safe to paste real queries with field names, variables, or fragment definitions from production APIs without hitting any endpoint.

Question 3

What formatting options can I change?

Accepted Answer

Indentation depth (2 or 4 spaces), whether to keep simple selections on one line or always expand them, and how arguments are wrapped. Output updates live as you toggle each option so you can compare.

Question 4

Is my query uploaded or stored?

Accepted Answer

No. Parsing and formatting happen entirely in your browser; the query is never sent to a server, logged, or remembered between visits.

GraphQL Formatter & Validator

Examples

Formatting and Validating GraphQL Queries and Mutations

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