About
A conference for the in-between
Started in 2023 by four friends who were tired of picking between a design conference and a developer one.
Since 2023
The first Plenar was 180 people in a Lisbon co-working space. We had one stage, one coffee machine and a waiting list longer than the room. Four years later the room is bigger, but the idea is the same: put the people who design and build interfaces together, and let them learn from each other.
Plenar is independent and run by a small team in Lisbon. We answer to attendees, not investors.
Every speaker is paid, every talk is captioned and recorded, and we publish what we spend.
Plenar 26
Last year, in numbers
- People in the room, the most yet
- 1140
- Countries they flew in from
- 47
- Talks, every one recorded and captioned
- 32
- Would come back next year
- 96%
Plenar 26
The last edition
09 photos
From the hallway
01 / 04
“The only conference where the hallway track and the talks were equally good. I came back with three things to try and two people to hire.”
“Every talk was something I could use the next week. No product pitches, no hype, and the best lunch I've had at an event.”
“As a first-time speaker I was terrified. The coaching and the rehearsal made it the best day of my working year.”
“We sent the whole design system team. They came back speaking the same language as each other, which was worth the tickets alone.”
Plenar 27 · Lisbon
Two days that change how you work
17–18 June 2027 · Armazém Nove
