> ## Documentation Index > Fetch the complete documentation index at: https://docs.iotools.cloud/llms.txt > Use this file to discover all available pages before exploring further. # Prettier Config Generator > Generate a Prettier configuration file — JSON (.prettierrc.json), YAML (.prettierrc.yaml), a JS module (prettier.config.mjs/cjs), or a package.json "prettier" key — from core options (printWidth, tabWidth, quotes, semicolons, trailing commas), JSX and Markdown/HTML options, and per-language overrides. [Try Prettier Config Generator in your browser →](https://iotools.cloud/tool/prettier-config-generator/) ## OpenAPI ````yaml https://api.iotools.cloud/v1/openapi post /v1/tool/prettier-config-generator openapi: 3.1.0 info: title: iotools.cloud API version: 1.0.0 description: >- Run any iotools.cloud tool over HTTP. Authenticate with `Authorization: Bearer iot_live_…`. **Only `POST /v1/tool/{slug}` costs credits.** Every GET here — the catalog, a tool's schema, your balance — is free. A tool call is charged its own weight or your plan's per-call minimum, whichever is larger; `x-iotools-credit-cost` on each operation is quoted at the free-tier minimum, and `GET /v1/tools/list` returns the exact figure for your key. `GET /v1/me/credits` reports what you have left, and `GET /v1/me/usage` reports what it went on. Failures are RFC 9457 problem documents — branch on `code`. servers: - url: https://api.iotools.cloud description: Production security: - bearerAuth: [] tags: - name: Catalog description: Find a tool and read its contract. Free. - name: Converters description: >- Convert between formats, encodings, and units — Base64, CSV and JSON, timestamps, and more. Fast, free, and processed right in your browser. - name: Formatters description: >- Format, beautify, minify, and validate code and data — JSON, HTML, CSS, SQL, and regex. Clean up messy input in one click, with nothing to upload. - name: Generators description: >- Generate exactly what you need and on demand — passwords, UUIDs, QR codes, hashes, random numbers, and more. Secure, instant, and free. - name: Calculators description: >- Crunch the numbers fast — from everyday math to specialized conversions and unit work. Free online calculators that run entirely in your browser. - name: Editors description: >- Edit and transform text, code, and images with quick, focused editors that run entirely in your browser — nothing to install, and no sign-up needed. - name: Utilities description: >- Everyday developer and web utilities — DNS and IP lookups, redirect and certificate checkers, and other quick diagnostics. Free and privacy-friendly. - name: Account description: Your key's allowance, limits and usage history. paths: /v1/tool/prettier-config-generator: post: tags: - Generators summary: Prettier Config Generator description: >- Generate a Prettier configuration file — JSON (.prettierrc.json), YAML (.prettierrc.yaml), a JS module (prettier.config.mjs/cjs), or a package.json "prettier" key — from core options (printWidth, tabWidth, quotes, semicolons, trailing commas), JSX and Markdown/HTML options, and per-language overrides. [Try Prettier Config Generator in your browser →](https://iotools.cloud/tool/prettier-config-generator/) operationId: run_prettier_config_generator requestBody: required: false content: application/json: schema: type: object properties: format: enum: - json - yaml - esm - cjs - pkg description: Output Format printWidth: type: number description: printWidth minimum: 20 maximum: 200 tabWidth: type: number description: tabWidth minimum: 1 maximum: 16 useTabs: type: boolean description: useTabs — indent with tabs instead of spaces semi: type: boolean description: semi — print semicolons at end of statements singleQuote: type: boolean description: singleQuote — use single quotes instead of double quoteProps: enum: - as-needed - consistent - preserve description: quoteProps trailingComma: enum: - all - es5 - none description: trailingComma bracketSpacing: type: boolean description: bracketSpacing — spaces inside object literals { foo } bracketSameLine: type: boolean description: bracketSameLine — keep > of multi-line HTML/JSX on last line arrowParens: enum: - always - avoid description: arrowParens endOfLine: enum: - lf - crlf - cr - auto description: endOfLine jsxSingleQuote: type: boolean description: jsxSingleQuote — use single quotes in JSX attributes singleAttributePerLine: type: boolean description: singleAttributePerLine — one HTML/JSX attribute per line proseWrap: enum: - preserve - always - never description: proseWrap htmlWhitespace: enum: - css - strict - ignore description: htmlWhitespaceSensitivity overrideMarkdown: type: boolean description: 'Markdown (*.md, *.mdx) — proseWrap: always, printWidth: 100' overrideHtml: type: boolean description: >- HTML (*.html) — printWidth: 120, singleAttributePerLine: true overrideYaml: type: boolean description: 'YAML (*.yml, *.yaml) — tabWidth: 2, singleQuote: false' overrideJson: type: boolean description: 'JSON (*.json) — printWidth: 200, trailingComma: none' includeHeader: type: boolean description: Include descriptive header comment (JS/YAML formats only) includeIgnore: type: boolean description: Also generate a .prettierignore template required: [] examples: json_defaults: summary: JSON — defaults value: format: json printWidth: '80' tabWidth: '2' useTabs: '' semi: 'true' singleQuote: '' quoteProps: as-needed trailingComma: all bracketSpacing: 'true' bracketSameLine: '' arrowParens: always endOfLine: lf jsxSingleQuote: '' singleAttributePerLine: '' proseWrap: preserve htmlWhitespace: css overrideMarkdown: '' overrideHtml: '' overrideYaml: '' overrideJson: '' includeHeader: 'true' includeIgnore: 'true' yaml_single_quotes_100_width_with_overrides: summary: YAML — single quotes, 100 width, with overrides value: format: yaml printWidth: '100' tabWidth: '2' useTabs: '' semi: 'false' singleQuote: 'true' quoteProps: as-needed trailingComma: es5 bracketSpacing: 'true' bracketSameLine: '' arrowParens: avoid endOfLine: lf jsxSingleQuote: '' singleAttributePerLine: '' proseWrap: preserve htmlWhitespace: css overrideMarkdown: 'true' overrideHtml: '' overrideYaml: '' overrideJson: '' includeHeader: 'true' includeIgnore: '' js_module_esm_tabs_no_semicolons: summary: JS module (ESM) — tabs, no semicolons value: format: esm printWidth: '80' tabWidth: '4' useTabs: 'true' semi: '' singleQuote: 'true' quoteProps: consistent trailingComma: none bracketSpacing: 'false' bracketSameLine: 'true' arrowParens: always endOfLine: lf jsxSingleQuote: 'true' singleAttributePerLine: '' proseWrap: always htmlWhitespace: strict overrideMarkdown: '' overrideHtml: '' overrideYaml: '' overrideJson: 'true' includeHeader: 'true' includeIgnore: 'true' responses: '200': description: Tool output content: application/json: examples: json_defaults: summary: JSON — defaults value: tool: prettier-config-generator tool_version: 1.0.1 outputs: output: | { "printWidth": 80, "tabWidth": 2, "useTabs": false, "semi": true, "singleQuote": false, "quoteProps": "as-needed", "jsxSingleQuote": false, "trailingComma": "all", "bracketSpacing": true, "bracketSameLine": false, "arrowParens": "always", "proseWrap": "preserve", "htmlWhitespaceSensitivity": "css", "endOfLine": "lf", "singleAttributePerLine": false } ignoreOutput: >- # Build output dist/ build/ out/ coverage/ .next/ .nuxt/ .svelte-kit/ # Dependencies node_modules/ # Lock files (often auto-generated, formatting them creates noise) package-lock.json yarn.lock pnpm-lock.yaml bun.lockb # Generated / vendored *.min.js *.min.css vendor/ # Misc .cache/ .vercel/ .turbo/ credits_used: 3 credits_remaining: null yaml_single_quotes_100_width_with_overrides: summary: YAML — single quotes, 100 width, with overrides value: tool: prettier-config-generator tool_version: 1.0.1 outputs: output: | # .prettierrc.yaml — Prettier configuration # Docs: https://prettier.io/docs/en/options # Generated with iotools.cloud printWidth: 100 tabWidth: 2 useTabs: false semi: false singleQuote: true quoteProps: as-needed jsxSingleQuote: false trailingComma: es5 bracketSpacing: true bracketSameLine: false arrowParens: avoid proseWrap: preserve htmlWhitespaceSensitivity: css endOfLine: lf singleAttributePerLine: false overrides: - files: - "*.md" - "*.mdx" options: proseWrap: always printWidth: 100 ignoreOutput: '' credits_used: 3 credits_remaining: null js_module_esm_tabs_no_semicolons: summary: JS module (ESM) — tabs, no semicolons value: tool: prettier-config-generator tool_version: 1.0.1 outputs: output: > // prettier.config.mjs — Prettier configuration (ES module) // Docs: https://prettier.io/docs/en/options // Generated with iotools.cloud /** @type {import("prettier").Config} */ const config = { printWidth: 80, tabWidth: 4, useTabs: true, semi: false, singleQuote: true, quoteProps: "consistent", jsxSingleQuote: true, trailingComma: "none", bracketSpacing: false, bracketSameLine: true, arrowParens: "always", proseWrap: "always", htmlWhitespaceSensitivity: "strict", endOfLine: "lf", singleAttributePerLine: false, overrides: [ { files: "*.json", options: { printWidth: 200, trailingComma: "none" } } ] }; export default config; ignoreOutput: >- # Build output dist/ build/ out/ coverage/ .next/ .nuxt/ .svelte-kit/ # Dependencies node_modules/ # Lock files (often auto-generated, formatting them creates noise) package-lock.json yarn.lock pnpm-lock.yaml bun.lockb # Generated / vendored *.min.js *.min.css vendor/ # Misc .cache/ .vercel/ .turbo/ credits_used: 3 credits_remaining: null schema: type: object required: - tool - tool_version - outputs - credits_used - credits_remaining properties: outputs: type: object properties: output: type: string description: Generated Config ignoreOutput: type: string description: .prettierignore tool: type: string description: The tool's slug, echoing the {slug} in the request path. tool_version: type: string description: Output-contract version for this tool. credits_used: type: integer description: >- Credits this call consumed, after any settlement refund. 0 when metering is disabled. credits_remaining: type: - integer - 'null' description: >- Credits left in the current monthly allowance, or null when metering is disabled. request_id: type: string description: Correlation id, also sent as x-request-id. '400': $ref: '#/components/responses/ValidationError' '401': $ref: '#/components/responses/Unauthorized' '402': $ref: '#/components/responses/InsufficientCredits' '403': $ref: '#/components/responses/ToolNotAllowed' '404': $ref: '#/components/responses/ToolNotFound' '413': $ref: '#/components/responses/PayloadTooLarge' '429': $ref: '#/components/responses/RateLimited' '500': $ref: '#/components/responses/ToolFailed' '503': $ref: '#/components/responses/ToolDisabled' security: - bearerAuth: [] components: responses: ValidationError: description: Invalid request. content: application/problem+json: schema: type: object description: >- RFC 9457 problem document, served as application/problem+json. Branch on `code`; `title` is human prose and may be reworded without notice. Some failures add extension members — `fields` on validation errors, `retry_after` on 429s, `credits_used`/`credits_remaining` on billing-adjacent failures — documented on the responses that carry them. required: - type - title - status - code properties: type: type: string format: uri description: Stable documentation URI for this failure. examples: - https://iotools.cloud/docs/errors/validation_error title: type: string description: Short human-readable summary of the failure. examples: - Invalid request status: type: integer description: HTTP status code, matching the response's own status. code: type: string description: >- Stable machine-readable error code — branch on this, not `title`. enum: - validation_error detail: type: string description: Human explanation of this occurrence. request_id: type: string description: Correlation id, also sent as x-request-id. fields: type: - object - string additionalProperties: type: string description: >- What failed: a map of field name → message. Absent when the body itself is malformed; a single string when the failure isn't tied to one field. example: type: https://iotools.cloud/docs/errors/validation_error title: Invalid request status: 400 code: validation_error detail: One or more inputs are invalid — see `fields`. request_id: e4042b29-8f1e-4c7a-9b52-6f0d1a3c7e11 fields: inputString: Required Unauthorized: description: Missing or invalid API key. content: application/problem+json: schema: type: object description: >- RFC 9457 problem document, served as application/problem+json. Branch on `code`; `title` is human prose and may be reworded without notice. Some failures add extension members — `fields` on validation errors, `retry_after` on 429s, `credits_used`/`credits_remaining` on billing-adjacent failures — documented on the responses that carry them. required: - type - title - status - code properties: type: type: string format: uri description: Stable documentation URI for this failure. examples: - https://iotools.cloud/docs/errors/invalid_api_key title: type: string description: Short human-readable summary of the failure. examples: - Invalid API key status: type: integer description: HTTP status code, matching the response's own status. code: type: string description: >- Stable machine-readable error code — branch on this, not `title`. enum: - invalid_api_key detail: type: string description: Human explanation of this occurrence. request_id: type: string description: Correlation id, also sent as x-request-id. example: type: https://iotools.cloud/docs/errors/invalid_api_key title: Invalid API key status: 401 code: invalid_api_key detail: 'Provide ''Authorization: Bearer ''.' request_id: e4042b29-8f1e-4c7a-9b52-6f0d1a3c7e11 InsufficientCredits: description: Monthly credit allowance exhausted. content: application/problem+json: schema: type: object description: >- RFC 9457 problem document, served as application/problem+json. Branch on `code`; `title` is human prose and may be reworded without notice. Some failures add extension members — `fields` on validation errors, `retry_after` on 429s, `credits_used`/`credits_remaining` on billing-adjacent failures — documented on the responses that carry them. required: - type - title - status - code properties: type: type: string format: uri description: Stable documentation URI for this failure. examples: - https://iotools.cloud/docs/errors/insufficient_credits title: type: string description: Short human-readable summary of the failure. examples: - Insufficient credits status: type: integer description: HTTP status code, matching the response's own status. code: type: string description: >- Stable machine-readable error code — branch on this, not `title`. enum: - insufficient_credits detail: type: string description: Human explanation of this occurrence. request_id: type: string description: Correlation id, also sent as x-request-id. credits_used: type: integer description: Always 0 — a refused call charges nothing. credits_remaining: type: integer description: Credits left in the allowance — fewer than this call costs. example: type: https://iotools.cloud/docs/errors/insufficient_credits title: Insufficient credits status: 402 code: insufficient_credits detail: This call costs 1 credit and 0 remain in this month's allowance. request_id: e4042b29-8f1e-4c7a-9b52-6f0d1a3c7e11 credits_used: 0 credits_remaining: 0 ToolNotAllowed: description: Tool exists but has no API surface. content: application/problem+json: schema: type: object description: >- RFC 9457 problem document, served as application/problem+json. Branch on `code`; `title` is human prose and may be reworded without notice. Some failures add extension members — `fields` on validation errors, `retry_after` on 429s, `credits_used`/`credits_remaining` on billing-adjacent failures — documented on the responses that carry them. required: - type - title - status - code properties: type: type: string format: uri description: Stable documentation URI for this failure. examples: - https://iotools.cloud/docs/errors/tool_not_allowed title: type: string description: Short human-readable summary of the failure. examples: - Tool not available over the API status: type: integer description: HTTP status code, matching the response's own status. code: type: string description: >- Stable machine-readable error code — branch on this, not `title`. enum: - tool_not_allowed detail: type: string description: Human explanation of this occurrence. request_id: type: string description: Correlation id, also sent as x-request-id. example: type: https://iotools.cloud/docs/errors/tool_not_allowed title: Tool not available over the API status: 403 code: tool_not_allowed detail: >- "Background Remover" is available on iotools.cloud but has no API endpoint. request_id: e4042b29-8f1e-4c7a-9b52-6f0d1a3c7e11 ToolNotFound: description: No such tool. content: application/problem+json: schema: type: object description: >- RFC 9457 problem document, served as application/problem+json. Branch on `code`; `title` is human prose and may be reworded without notice. Some failures add extension members — `fields` on validation errors, `retry_after` on 429s, `credits_used`/`credits_remaining` on billing-adjacent failures — documented on the responses that carry them. required: - type - title - status - code properties: type: type: string format: uri description: Stable documentation URI for this failure. examples: - https://iotools.cloud/docs/errors/tool_not_found title: type: string description: Short human-readable summary of the failure. examples: - Tool not found status: type: integer description: HTTP status code, matching the response's own status. code: type: string description: >- Stable machine-readable error code — branch on this, not `title`. enum: - tool_not_found detail: type: string description: Human explanation of this occurrence. request_id: type: string description: Correlation id, also sent as x-request-id. example: type: https://iotools.cloud/docs/errors/tool_not_found title: Tool not found status: 404 code: tool_not_found detail: No tool with that slug. See GET /v1/tools/list. request_id: e4042b29-8f1e-4c7a-9b52-6f0d1a3c7e11 PayloadTooLarge: description: Body too large. content: application/problem+json: schema: type: object description: >- RFC 9457 problem document, served as application/problem+json. Branch on `code`; `title` is human prose and may be reworded without notice. Some failures add extension members — `fields` on validation errors, `retry_after` on 429s, `credits_used`/`credits_remaining` on billing-adjacent failures — documented on the responses that carry them. required: - type - title - status - code properties: type: type: string format: uri description: Stable documentation URI for this failure. examples: - https://iotools.cloud/docs/errors/payload_too_large title: type: string description: Short human-readable summary of the failure. examples: - Payload too large status: type: integer description: HTTP status code, matching the response's own status. code: type: string description: >- Stable machine-readable error code — branch on this, not `title`. enum: - payload_too_large detail: type: string description: Human explanation of this occurrence. request_id: type: string description: Correlation id, also sent as x-request-id. example: type: https://iotools.cloud/docs/errors/payload_too_large title: Payload too large status: 413 code: payload_too_large detail: Request body exceeds this tool's size limit. request_id: e4042b29-8f1e-4c7a-9b52-6f0d1a3c7e11 RateLimited: description: Per-minute rate limit exceeded. headers: Retry-After: description: Seconds to wait before retrying (RFC 9110 delta-seconds). schema: type: integer content: application/problem+json: schema: type: object description: >- RFC 9457 problem document, served as application/problem+json. Branch on `code`; `title` is human prose and may be reworded without notice. Some failures add extension members — `fields` on validation errors, `retry_after` on 429s, `credits_used`/`credits_remaining` on billing-adjacent failures — documented on the responses that carry them. required: - type - title - status - code properties: type: type: string format: uri description: Stable documentation URI for this failure. examples: - https://iotools.cloud/docs/errors/rate_limited title: type: string description: Short human-readable summary of the failure. examples: - Rate limit exceeded status: type: integer description: HTTP status code, matching the response's own status. code: type: string description: >- Stable machine-readable error code — branch on this, not `title`. enum: - rate_limited detail: type: string description: Human explanation of this occurrence. request_id: type: string description: Correlation id, also sent as x-request-id. retry_after: type: integer description: >- Seconds until the window resets — the same value as the `Retry-After` header. example: type: https://iotools.cloud/docs/errors/rate_limited title: Rate limit exceeded status: 429 code: rate_limited detail: Too many requests. Retry in 30s. request_id: e4042b29-8f1e-4c7a-9b52-6f0d1a3c7e11 retry_after: 30 ToolFailed: description: Tool failed to run. content: application/problem+json: schema: type: object description: >- RFC 9457 problem document, served as application/problem+json. Branch on `code`; `title` is human prose and may be reworded without notice. Some failures add extension members — `fields` on validation errors, `retry_after` on 429s, `credits_used`/`credits_remaining` on billing-adjacent failures — documented on the responses that carry them. required: - type - title - status - code properties: type: type: string format: uri description: Stable documentation URI for this failure. examples: - https://iotools.cloud/docs/errors/processing_error - https://iotools.cloud/docs/errors/internal_error title: type: string description: Short human-readable summary of the failure. examples: - Tool failed to run - Internal error status: type: integer description: HTTP status code, matching the response's own status. code: type: string description: >- Stable machine-readable error code — branch on this, not `title`. enum: - processing_error - internal_error detail: type: string description: Human explanation of this occurrence. request_id: type: string description: Correlation id, also sent as x-request-id. credits_used: type: integer description: >- Always 0 on `processing_error` — a failed run is refunded, floor included. credits_remaining: type: integer description: >- Credits left after the refund. Absent when metering is disabled. example: type: https://iotools.cloud/docs/errors/processing_error title: Tool failed to run status: 500 code: processing_error detail: The tool failed to run. Please try again. request_id: e4042b29-8f1e-4c7a-9b52-6f0d1a3c7e11 credits_used: 0 ToolDisabled: description: Tool temporarily disabled. content: application/problem+json: schema: type: object description: >- RFC 9457 problem document, served as application/problem+json. Branch on `code`; `title` is human prose and may be reworded without notice. Some failures add extension members — `fields` on validation errors, `retry_after` on 429s, `credits_used`/`credits_remaining` on billing-adjacent failures — documented on the responses that carry them. required: - type - title - status - code properties: type: type: string format: uri description: Stable documentation URI for this failure. examples: - https://iotools.cloud/docs/errors/tool_disabled - https://iotools.cloud/docs/errors/api_unconfigured title: type: string description: Short human-readable summary of the failure. examples: - Tool temporarily disabled - API not configured status: type: integer description: HTTP status code, matching the response's own status. code: type: string description: >- Stable machine-readable error code — branch on this, not `title`. enum: - tool_disabled - api_unconfigured detail: type: string description: Human explanation of this occurrence. request_id: type: string description: Correlation id, also sent as x-request-id. example: type: https://iotools.cloud/docs/errors/tool_disabled title: Tool temporarily disabled status: 503 code: tool_disabled detail: This tool is temporarily unavailable. Try again shortly. request_id: e4042b29-8f1e-4c7a-9b52-6f0d1a3c7e11 securitySchemes: bearerAuth: type: http scheme: bearer bearerFormat: iot_live_… ````