type-teller
Advanced tools
The file type is detected by checking the magic number of the buffer.
This package is for detecting binary-based file formats
npm install type-teller
// javascript
const { detectFileType } = require("type-teller");
// typescript
import { detectFileType } from "type-teller";
//
const pathToFile = "./myImage.png";
const buffer = fs.readFileSync(pathToFile);
const type = detectFileType(buffer);
console.log(type); // Outputs: { ext: 'png' mime: 'image/png' }
This is NOT recommended for critical applications. This method assumes that the file extension matches the actual file type. This only checks the file extension.
// javascript
const { fileTypeFromFile } = require("type-teller");
// typescript
import { fileTypeFromFile } from "type-teller";
const pathToFile = "./myVideo.mp4";
const type = fileTypeFromFile();
console.log(type); // Outputs: { ext: 'mp4', mime: 'video/mp4' }
FAQs
Detect the file type of a Buffer/Uint8Array/ArrayBuffer
We found that type-teller demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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