List of free file-sharing stuff for developerππ½
If you're looking for all programming tools around file-sharing (not just free). Check this page List of file-sharing Programming Tools
ShareX
ShareX is a free and open source program that lets you capture or record any area of your screen and share it with a single press of a key. It also allows uploading images, text or other types of files to many supported destinations you can choose from.
Tag: screen-capture, file-sharing, productivity
Available for Windows

Unlimited storage 3 Unlimited bandwidth No expiration date Transfer history: 3 of most recent shares Size limit: 512 MB per file

Dropbox
Dropbox is a modern workspace designed to reduce busywork-so you can focus on the things that matter. Sign in and put your creative energy to work.
Tag: storage, file-sharing
2 GB of storage

DirectDL
DirectDL.cc | convert torrent to direct link. with DirectDL online torrent client, create direct link and download torrents easily!
Tag: file-sharing
2GB plan is free without speed limitation and fully stable.

Bitport.io
Download torrents safely to your cloud and play them online on any device. Try Bitport torrent downloader now for free.
Tag: storage, file-sharing
Slots for download: 1 slot Not guaranteed: Download speed Unsecured: Only HTTP, without antivirus control On-line stream: on all devices

file.io
Sharing files with file.io is convenient, anonymous and secure. Just upload files and share the links via email, SMS, Slack, Discord, etc. Easy-to-use REST API.
Tag: file-sharing
Manage your files in the file.io web app Share files up to 100 MB API rate limit: 1 request/minute Files auto-deleted after 1 download