Does this tool support GraphQL variables?

Yes. Paste the query in the query field and JSON variables in the variables field. Both are formatted independently and syntax errors in either are reported.

What types of GraphQL documents are supported?

Queries, mutations, subscriptions, fragments, and schema definitions (SDL) are all supported.

Can I use this to validate a query before sending it to an API?

The tool checks GraphQL syntax, so structural issues (missing braces, invalid keywords) are detected. It does not validate against a specific schema, so field name errors will not be caught.

Why is the formatted output different from what my IDE produces?

Different formatters may make different style choices (e.g., blank lines between fields). This tool follows the standard GraphQL formatting conventions used by the graphql-js reference library.

Does this tool send my query to a server?

No. All formatting and syntax checking is done in the browser. Your query and variables are never sent to any server.

Ctrl+K

TOML to JSON Conversion

Convert TOML data to JSON format. Useful for API integration and config compatibility. Enter text or upload a file (up to 100KB) and see real-time conversion results.

TOML Input

JSON Output

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How to use

About this tool

Converts TOML strings to JSON.

How to use

Paste TOML; the JSON output can be copied.

Use cases

• Converting TOML (e.g. Cargo.toml) to JSON for APIs/tools • Unifying config formats • Readability and processing

Code Examples

TOML input example (before)

Read Only

1# Comments are ignored
2[package]
3name = "my-app"
4version = "1.0.0"
5
6[database]
7host = "localhost"
8port = 5432
9enabled = true
10
11[[servers]]
12host = "api.example.com"
13[[servers]]
14host = "cache.example.com"

JSON output example (after)

Read Only

1{
2  "package": {
3    "name": "my-app",
4    "version": "1.0.0"
5  },
6  "database": {
7    "host": "localhost",
8    "port": 5432,
9    "enabled": true
10  },
11  "servers": [
12    { "host": "api.example.com" },
13    { "host": "cache.example.com" }
14  ]
15}

How it works

■ What is TOML? TOML (Tom's Obvious, Minimal Language) is a human-readable format for config files. It supports key=value pairs, [sections], arrays, and types such as dates, integers, floats, and booleans. It is widely used in Rust (Cargo.toml), Python (pyproject.toml), and elsewhere. ■ What is JSON? JSON (JavaScript Object Notation) represents key-value pairs, arrays, and nested objects as text. It is commonly used for API requests/responses and data exchange. ■ How conversion works The tool parses the TOML string into an intermediate object, then serializes it to formatted JSON (2-space indent). Date and datetime values are output as ISO 8601 strings. All processing runs in the browser.

Privacy and data

Conversion runs entirely in the browser; TOML and JSON are never sent to a server.

FAQ

Q: Does this tool support GraphQL variables?: A: Yes. Paste the query in the query field and JSON variables in the variables field. Both are formatted independently and syntax errors in either are reported.
Q: What types of GraphQL documents are supported?: A: Queries, mutations, subscriptions, fragments, and schema definitions (SDL) are all supported.
Q: Can I use this to validate a query before sending it to an API?: A: The tool checks GraphQL syntax, so structural issues (missing braces, invalid keywords) are detected. It does not validate against a specific schema, so field name errors will not be caught.
Q: Why is the formatted output different from what my IDE produces?: A: Different formatters may make different style choices (e.g., blank lines between fields). This tool follows the standard GraphQL formatting conventions used by the graphql-js reference library.
Q: Does this tool send my query to a server?: A: No. All formatting and syntax checking is done in the browser. Your query and variables are never sent to any server.