File & Uploads#buffer#binary#image

Is PNG (Magic Bytes)

Validates file type by checking magic bytes, not just extension.

Is PNG (Magic Bytes)

file

Validates file type by checking magic bytes, not just extension.

#buffer#binary#image
ts
const isPNG = (buffer: Uint8Array): boolean => {
  const signature = [137, 80, 78, 71, 13, 10, 26, 10];
  return buffer.length >= 8 && signature.every((b, i) => buffer[i] === b);
};

How to Use

This is png (magic bytes) validator can be used in your project by following these simple steps:

  1. Select your preferred programming language from the code block above
  2. Click the "Copy" button to copy the code to your clipboard
  3. Paste the code into your project file
  4. Customize the parameters as needed for your specific use case
  5. Test the validator with sample inputs before deploying to production

About This Validator

The is png (magic bytes) is a common validation requirement in modern software development. This implementation follows industry best practices and is optimized for both performance and accuracy. The code is MIT licensed and free to use in personal and commercial projects.

Available in multiple programming languages including TypeScript, JavaScript, Python, Go, and PHP, this validator can be integrated into virtually any tech stack. Each implementation maintains consistent logic and behavior across languages.

Related Validators

Is JPEG (Magic Bytes)

Validates JPEG by magic bytes.

File Size Check

Validates file size is within limit (in MB).

Get File Extension

Extracts file extension from filename.

File .pdf

Validates .pdf extension.