Formatting validates GraphQL syntax only—not your live API schema, field authorization, or resolver behavior.
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GraphQL operations are often minified in network tabs, logs, and copied snippets—making nested selections hard to scan. A formatter re-indents the document using the GraphQL grammar (via Prettier) without changing query semantics.
This tool formats and validates syntax entirely in your browser: paste from Chrome DevTools, Apollo Studio, or your repo, get readable output, and jump to parser errors by line. It handles queries, mutations, subscriptions, fragments, and schema type definitions.
Formatting proves the document is syntactically valid GraphQL—it does not validate that fields exist on your server schema or that variables match your API.
Whitespace changes layout only; always confirm field names and types against your live schema before shipping.
Common real-world scenarios where this tool saves time.
Frontend developers
Beautify minified operations copied from browser DevTools before pasting into issues or PRs.
API engineers
Normalize indentation so added/removed fields stand out in diffs.
Technical writers
Format example queries and mutations for README files and onboarding guides.
Schema authors
Format type, input, enum, and interface definitions before sharing schema proposals.
Step-by-step chains that connect related tools for common tasks.
| Action | What it proves | What it does not prove |
|---|---|---|
| Format (this tool) | Valid GraphQL syntax + readable layout | Fields exist on your API schema |
| Validate only | Parser accepts the document | Variables match server types |
| GraphQL IDE / gateway | Schema-aware autocomplete | Authorization or rate limits |
Consistent indentation makes field-level diffs obvious and reduces review noise from whitespace-only changes.
A truncated copy from logs may be missing closing braces—catch that before pasting into client code.
Debounced formatting gives instant feedback while editing. Disable or use manual Format for very large SDL files (>200k chars).
This tool formats the operation document—not the JSON variables payload. Format variables separately in JSON Formatter.
Syntax validation ≠ schema validation. Use your GraphQL IDE, graphql-codegen, or introspection against the live endpoint.
This tool beautifies (expands). For single-line transport, strip whitespace in your build pipeline or use a dedicated minifier.
GraphQL HTTP POST bodies are JSON with query and variables keys—use JSON Formatter for the envelope, this tool for the query string inside.
Use SQL Formatter for database queries or JSON/XML formatters for REST bodies—GraphQL grammar is distinct.
Likely cause: Missing comma between arguments, unclosed string, or invalid character in an alias.
Fix: Scroll to the reported line; check matching quotes and that arguments use name: value syntax.
Likely cause: Input exceeds ~80k characters; auto-format may be disabled above ~200k.
Fix: Turn off auto-format and click Format manually, or split large schema files into smaller documents.
Likely cause: Some tools accept extensions or comments this parser rejects; pasted text may include BOM or smart quotes.
Fix: Re-copy as plain text; remove non-GraphQL wrappers; try validate-only to see the exact parser message.
Paste a query from DevTools, a .graphql file, or schema SDL—or drag-and-drop a .graphql/.gql file (max 2 MB).
Click Format GraphQL or press Ctrl+Enter. Use Validate to check syntax without changing the input text.
If invalid, read the line/column badge and click Scroll to error. Common fixes: close braces, fix typos in field names, balance quotes.
Copy formatted GraphQL to your clipboard or download formatted.graphql for commits and code review.
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No. This checks GraphQL document syntax only. Whether fields and types exist on your API requires introspection or schema-aware tools.
No. Whitespace and line breaks are insignificant in GraphQL. Formatting only affects readability.
Yes. Paste operations with fragment spreads and variable definitions ($var: Type)—the formatter handles the full document.
Yes—query, mutation, and subscription operations plus inline and named fragment definitions are supported.
Yes—paste type, input, enum, and interface definitions for readable schema documentation.
The tool shows the parser message, approximate line/column, and a Scroll to error button. Fix braces or quotes, then re-format.
No. Formatting runs entirely in your browser using Prettier loaded on demand.
Yes. Cleaner formatting makes field-level changes easier to spot in diffs and review threads.
GraphQL Formatter runs in your browser—queries and schema text are not uploaded to EverydayTools servers.
Uses Prettier's GraphQL plugin; error locations follow parser messages.
Syntax validation only. Does not check schema compatibility, auth headers, or server-side field permissions.
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Reviewed by EverydayTools Editorial Team on 2026-06-14.
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