GraphQL Query Complexity Estimator

How to use this tool

1. Paste a GraphQL query. Operations, fragments and plain selection sets are all accepted.
2. Read the score. Each field costs its depth (top-level fields cost 1, their children 2, and so on), multiplied by its list size when it carries a first or last argument, capped at 10 per field.
3. Use the table. The per-field breakdown shows exactly which field drives the total, so you can trim the expensive one.

Worked example

Paste the sample query { user { name posts(first: 5) { title } } }. The total is 16: user costs 1, name costs 2, posts costs 2 × 5 = 10, and title costs 3. There are 4 fields, the maximum depth is 3, and 1 field is a list field.

What this tool does not do / Limits

This is a planning number from the rule stated on this page, not a limit enforced by any server, and different APIs score queries differently. Fragment spreads are counted as one field each and are not expanded into the fields they contain. Directives such as @include and @skip do not change the score.

Frequently asked questions