Chat Waterfall
A Chat Waterfall is a way to collect everyone's answer in a video-call chat at the same moment, so that people do not anchor on each other. Participants type a response but hold it, then all press enter on a count of three and the answers pour down the chat together. In the version documented by Fred Brown for Erica Marx Coaching, half the group posts first and the other half then builds on what it has read.
Facilitation script
- 1
Explain the technique, split the group in two and give the prompt.
2 min - 2
Group 1 types without sending, then posts together on the count of three.
2 min - 3
Everyone reads the stream; highlight a few answers aloud.
2 min - 4
Group 2 types responses or additions and posts together on the count.
2 min - 5
Read again, name the themes you see and link them to the next agenda item.
2 min
Tips
Word the prompt so it can be answered in one line, and say how long people have before the count.
Tell the group explicitly not to press enter early, and wait a moment longer than feels comfortable before counting down, since the technique only works if nearly everyone has something typed.
Always do something with the answers afterwards.
If the stream scrolls past unread, people learn that the chat is decoration.
Common pitfalls
Counting down too soon, so only the fast typists post and the stream shows a fraction of the group
A vague or two-part prompt that produces long paragraphs nobody can read as they scroll past
Moving on without reading or using the answers, which makes people less willing to type next time
A few people sending early, which brings back the anchoring the technique is meant to prevent
Using it for every question in a session until it becomes a gimmick and response rates drop
Variations
The form most facilitators mean by the name is simpler: one prompt, everyone types, everyone sends on three, with no split into groups. Use that for check-ins, quick polls of opinion and closing reflections, and keep the two-group version for when you want people to build on each other. In very large groups, ask for a single word or a number so the stream stays readable, or save the chat and cluster the answers during a break. Playing music during typing and reading is suggested in the source. The source says the technique was perhaps first developed by Aneta Key; its origin is not firmly documented.
Where it fits
When to use it
An online group is too large for a spoken round and you still want a contribution from every person
The first answer to a question usually sets the tone and you want independent views
A few voices dominate the call and quieter participants respond more readily in writing
You need a fast reading of expectations, concerns or energy before deciding how to continue
A webinar-style session needs a moment of visible participation without breakout rooms
When not to use it
The question needs a nuanced answer of several sentences: use breakout rooms with 1-2-4-All or a Round Robin
The answers should be sorted, clustered and kept: collect them on a shared whiteboard with Brainwriting or an Affinity Map
Input should be anonymous, since chat messages carry names; use an anonymous poll or form
Participants join by phone or in a shared meeting room with one keyboard and cannot type individually
The group has fewer than about five people, where a spoken round is just as quick and richer
Related methods
Further reading
Frequently asked questions
What is Chat Waterfall?▾
A Chat Waterfall is an online facilitation technique in which participants type an answer into the meeting chat but wait to send it. On a count of three everyone presses enter at once, so the answers arrive together. It gives every participant a voice in seconds and stops early answers from influencing later ones.
Why should people wait before pressing enter?▾
If answers arrive one by one, later writers read the earlier ones and adjust what they say, or decide their point has already been made. Sending at the same time gives you independent answers from the whole group. It also creates a small shared moment that lifts energy on a call.
How does the two-group version work?▾
The group is split in half. The first half types and sends together, everyone reads, and then the second half types responses that build on what was posted and sends together. For the next prompt the halves swap roles.
How many people can take part in a Chat Waterfall?▾
There is no upper limit, which is why it is popular in large online meetings. With more than about 50 people, ask for very short answers such as one word or a number, because a long stream scrolls too fast to read. With fewer than five, a spoken round usually works better.
Who invented the Chat Waterfall?▾
The origin is not clearly documented. The SessionLab entry by Fred Brown for Erica Marx Coaching says it was perhaps first developed by Aneta Key. The technique spread widely among online facilitators and is known under several names, including Chatterfall and Chat Storm.
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Try it freeMethod descriptions on Workshop Weaver are original content written by our team, based on established facilitation practices. This method was inspired by work from Fred Brown for Erica Marx Coaching (SessionLab library).