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The file upload extension with insane intelligence for your Flarum forum.
Branch: master
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luceos Merge pull request #186 from imorland/patch-1
Correctly orientate an image with exif data
Latest commit 473da28 Nov 22, 2019

Upload by Flagrow logo Flagrow

MIT license Latest Stable Version Total Downloads Donate

An extension that handles file uploads intelligently for your forum.


  • For images:
    • Auto watermarks.
    • Auto resizing.
  • Mime type to upload adapter mapping.
  • Whitelisting mime types.
  • Uploading on different storage services (local, imgur, AWS S3 for instance).
  • Drag and drop uploads.
  • Uploading multiple files at once (button and drag and drop both support this).
  • Easily extendable, the extension heavily relies on Events.

For a complete overview of our releases, please visit the milestones tracker on Github.


Use Bazaar or install manually:

composer require "flagrow/upload:*"


composer update flagrow/upload
php flarum cache:clear


Enable the extension, a new tab will appear on the left hand side. This separate settings page allows you to further configure the extension.

Make sure you configure the upload permission on the permissions page as well.

Mimetype regular expression

Regular expressions allow you a lot of freedom, but they are also very difficult to understand. Here are some pointers, but feel free to ask for help on the official Flarum forums.

In case you want to allow all regular file types including video, music, compressed files and images, use this:


A mimetype consists of a primary and secondary type. The primary type can be image, video and application for instance. The secondary is like a more detailed specification, eg png, pdf etc. These two are divided by a /, in regex you have to escape this character by using: \/.


Please visit the thread.

Check future milestones.


If you discover a security vulnerability within Upload, please send an email to the Flagrow team at All security vulnerabilities will be promptly addressed.

Please include as many details as possible. You can use php flarum info to get the PHP, Flarum and extension versions installed.



An extension by Flagrow.

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