This is a list of ways that I know of aimed at helping Ukraine and its citizens while it suffers from Russian aggression.
Donations
National Bank of Ukraine opened two accounts that accept donations towards the army, as well as humanitarian donations. You can pay directly on their page, as well as transfer money whatever the currency is:
NBU for Armed Forces
NBU for Humanitarian Aid
One of the biggest organizations raising funds to support Armed Forces:
Save Life
Art for Freedom. Sessions from creatives with donations for Ukraine (until the 18th of March).
Happy Kids (Poland). Evacuating orphanages and taking care of them.
Various Support
UA Help Info. Collection of links and information on help by country (including within Ukraine itself).
InfoHelp UA. With info in Ukraine and outside — including evacuation, information on countries, etc. Also, how to help those in trouble.
Awesome Ukraine Support on GitHub. A frequently updated page with resources.
Ukraine War – Info and ways to help.
Stand With Ukraine. A map of where protests take place.
Telegram groups for those fleeing Ukraine and those trying to help
Useful info for those who are crossing the border with Slovakia. This is an official initiative led by a group of professionals, activists and opinion leaders and 35+ partnering NGOs, all covering different aspects of crisis.
For Berlin, additionally, there’s information here: Help for Ukrainians
Official information for those who have arrived, in Russian: https://www.berlin.de/ukraine/ru/pribytie/
For Berliners
Follow this channel to learn how you can support:
https://t.me/berlinhelpsukraine
For Ukrainians
Follow this channel for important updates: https://t.me/germanyhelpsukraine
Handbook: https://handbookgermany.de/de/ukraine-info/ua.html
More in Poland: Grupa Granica. An NGO helping refugees.
Jobs
For those Ukrainians who are looking for a new job, there’s a site here:
Happy Monday – job search
On that same site, you can also add a job from your company to help Ukrainians in need. Add a job.
UA Talents. To look for a job in EU.
Housing
Wunderflats added a section specifically for Ukrainians.
Host a Sister. For women all around the world