Access all your coding documentation in one place, always up-to-date. Includes snippet library triggerable via abbreviations.

https://kapeli.com/dash

Cross-platform notebook for your code snippets. Supports highlighting, side by side notes (eg, HTML vs Javascript) and markdown.

https://b00st.io/

File.io - Ephemeral file sharing Convenient, anonymous and secure. "It's like snapchat, but for files!"

https://www.file.io/

Infinit - Sending files, re-imagined. No file size limit. No waiting. No hassle. Always works!

https://infinit.io/

Balloon - A drop box for your Dropbox. Share your Balloon to receive files, collect photos from an event, and so much more straight to your Dropbox.

https://balloon.io/