file-type
Detect the file type of a file, stream, or data (by sindresorhus)
opencv
OpenCV Bindings for node.js (by peterbraden)
| file-type | opencv | |
|---|---|---|
| 7 | - | |
| 4,103 | 4,384 | |
| 0.8% | 0.0% | |
| 8.4 | 0.0 | |
| about 2 months ago | about 1 year ago | |
| JavaScript | C++ | |
| MIT License | MIT License |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
file-type
Posts with mentions or reviews of file-type.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2025-06-29.
- Ask HN: What Are You Working On? (June 2025)
-
Using Google Magika to build an AI-powered file type detector
file-type is a lightweight library for checking file types based on the header. It’s designed to run in Node.js and browser environments and provides a simple way of detecting file types from Buffers, files on disk, streams, and Blobs.
-
How do you import a package in Node.js that is "only available in the browser"?
In a react app, I want to import fileTypeFromBlob from file-type. The function is not actually being imported because it's only available in the browser. This is made clear in the docs, but it also comes up in this issue.
-
Go library to validate MPEG-4 file?
Is there no implementation of something like file-type in go?
-
Adding IPFS to my JavaScript OS
I've also added file type detection so it can try to open the url in the correct app. This is done using the library file-type.
-
S3 file upload via GraphQL or REST?
Main reasons are to give you more control over exactly what is uploaded, such as checking magic numbers for file types, instead of assuming they match their extension, or having more fine-tuned control over rate limiting.
-
How to detect file type in JavaScript without checking its file object type?
I want instead focus on the file-type library. This library applies the magic numbers approach to the ArrayBuffer of the file for detecting its type. It works with a large amount of different file types.
opencv
Posts with mentions or reviews of opencv.
We have used some of these posts to build our list of alternatives
and similar projects.
We haven't tracked posts mentioning opencv yet.
Tracking mentions began in Dec 2020.
What are some alternatives?
When comparing file-type and opencv you can also consider the following projects:
require-uncached - Import a module while bypassing the cache
Electron - :electron: Build cross-platform desktop apps with JavaScript, HTML, and CSS
ow - Function argument validation for humans
onetime - Ensure a function is only called once
@sindresorhus/is - Type check values
node-pre-gyp - Node.js tool for easy binary deployment of C++ addons