Code Formatter API

A developer-focused API that formats source code across languages, enabling consistent styling and integration into CI pipelines.

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3,692+
Total Calculations Run
< 15ms
Browser Execution Speed
100%
Client-Side Privacy
4.9 / 5.0
User Satisfaction

Worked Example & Common Values

Below is a sample worked calculation demonstrating how Code Formatter API processes input data instantly inside your browser.

Sample Input Minified string: {"id":1,"status":"active","roles":["admin"]}
Computed Result { "id": 1, "status": "active", "roles": [ "admin" ] }
Execution Mode Client-Side In-Browser JS
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About This Tool

The Code Formatter API formats source code by language-aware rules and returns a formatted_code string. It is designed for developers, build pipelines, and tooling that require consistent style across projects and teams. Typical use cases include automated formatting in CI workflows, code generators, IDE integrations, and pre-commit hooks. It supports multiple languages and style profiles, enabling teams to standardize on a single formatting policy without embedding rules in every editor. By exposing a stable API surface, it enables automation, reduces review cycles, and helps enforce policy without manual intervention.
Conceptually, the tool parses input code using language-specific grammars, then reprints it with standardized indentation, line breaks, and spacing while preserving semantics and comments by default. It can operate in strict mode (adheres to a chosen profile) or flexible mode (preserves certain project-specific quirks). Advanced options allow controlling line width, indent size, and whether to wrap long lines. Outputs include the reformatted code plus optional metadata such as processing time and token counts.
Benefits and differentiators include high language coverage, AST or token-based formatting, and configurable profiles. It is optimized for speed in batch formatting and suitable for microservices or monorepos. Use cases span code review acceleration, consistent formatting across languages, and automated formatting in deployment pipelines. The tool emphasizes non-semantic formatting changes only, preserving original behavior while delivering clean, maintainable code.

How to Use

  1. Provide inputs: source_code, language, options.
  2. Choose formatting profile and settings (indent size, style, line width).
  3. Send API request with a JSON payload containing the inputs and options.
  4. Receive response with formatted_code and optional metadata (time, stats).
  5. Integrate the formatted_code into your build or editor workflow and validate results.
  6. Handle errors according to API error responses and retry if needed.
How to use code formatter api

Frequently Asked Questions

Find Quick Answers

Which languages are supported?
The API supports the most common programming languages via language-specific parsers. Additions are implemented as language profiles; unsupported languages return a clear error with guidance to request support.
How are comments handled?
By default, comments are preserved and positioned according to the target style profile. Optional settings allow tightening or preserving comment blocks differently per language.
Can this be integrated into CI/CD?
Yes. The API accepts code payloads from CI jobs and returns formatted_code along with timing and size metrics, enabling automated checks and gating in pipelines.
Are there rate limits?
Yes. The API enforces reasonable rate limits based on plan; large bursts may be throttled. Clients should implement retry with exponential backoff and respect recommended quotas.

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