C++Online 2025
Open Calls
Call For Posters
We are delighted to announce CppOnline will have a virtual Poster Room at this year’s conference. Get involved and showcase your poster!
Posters can be related to anything in C++ and we are looking for a balance between deeply technical posters aimed at experts as well as more accessible posters that may be of interest to students and new developers.
All accepted posters will be given FREE entry to C++Online
Deadline: February 14, 2025
Call For Volunteers
We are looking for volunteers to help us on Discord and Gather Town during the event.
Volunteers will be responsible for helping attendees with technical issues and answering common questions during the conference
All accepted volunteers will be given FREE entry to C++Online
Deadline: February 7, 2025
Call For Open Content
Do you have a topic, idea, or discussion you’d love to share with the C++ community? If so, then we are inviting submissions for Open Content Sessions. Whether you're an expert, an enthusiast, or simply someone with a passion for C++, this is your chance to present your ideas to a global audience in an interactive and innovative virtual environment.
All presenters of open content will be given FREE entry to C++Online
Deadline: February 24, 2025
What is C++Online?
C++Online is an online only, international C++ Conference which will run from 25th - 28th February 2025, which includes workshops.
C++Online is brought to you by the organising team behind C++OnSea and the technical team behind online and hybrid versions of CppNow, CppCon, ACCU, The Audio Developer Conference and many other established events.
The conference is designed to provide a more accessible option for those who might find attending other international conferences more difficult or financially restrictive, at a time of year where we traditionally see less in-person conferences due to weather, holidays and other restrictions.
Join us online for four days of C++ content, including livestreamed C++ talks and workshops, group chats, networking and meetups through our interactive virtual venue, meet sponsors, recruiters, peers and experts in the field through video and text chat in Zoom, Discord and Gather Town.
The conference will run from 12:00-22:00 UTC with the main programme of talks scheduled to be accessible to as many active time zones as possible. In addition, all sessions will be available to watch on-demand through the conference web portal. We'll also have lightning talk sessions, virtual poster sessions and other content available to participate in throughout the event.
There will also be opportunities to schedule your own content, such as group discussion sessions, open Q&A sessions, meetups or BoF group chats in our virtual venue!
Check out the 2024 schedule of talks and workshops for an idea of what to expect.
Visit our social accounts to keep up to date with the latest news
See You Online!
Latest News
Join us for C++Online 26th Feb – 28th Feb 2025!
Livestreamed Talks Over 3 Days – Plus Pre-Con Workshops! http://cpponline.uk/ - Register Now for only £99 (Discounts available) ShavedYaks (C++OnSea)...
Keynote Spotlight – Code & Culture By Sejal Gupta
This article focuses on the second of our three conference keynotes which Sejal Gupta will be giving at 16:30 UTC...
Keynote Spotlight – Functional Programming in C++ By Jonathan Müller
This article focuses on the third of our three conference keynotes which Jonathan Müller will be giving at 16:30 UTC on...
No Sessions Found








Schedule
C++Online will also have over 20 talks from experts in the field
- Personal Agenda - Build your own personal agenda which you can use at the event.
- Access To Slides - Access slides and other presentation material as and when they are uploaded by the speakers.
- Add To Google Calendar - If you have other commitments during the event, then you can add individual sessions to your Google Calendar and make sure you are free for the talks you want to see.
- Open Content - We have slots in the schedule which are open for anyone to present and which include free entry to the main conference!
Open Content
Have a C++ project/topic that you want to present? If you are, then you can run an open content session at the start or end of each day of the conference. This includes:
- Hosting a talk, demo or workshop in our online interactive virtual venue
- A dedicated 30, 60 or 90 minute slot to run your open content session which will be added to the official C++Online schedule
- Free entry to C++Online Main conference
Community Meetups & Social Events
As part of open content, attendees also have the option to:
- Host an informal meetup or group session in our virtual venue
- Run a tournament, quiz or other group/team based session
Like with other open content, accepted applications will get FREE access to C++Online and have their open content added to the official schedule
In addition, during the conference impromptu meetup spaces and group discussion areas will be available for any on-the-fly attendee driven engagements.

Online Posters
We are looking for people who would be interested in creating posters and presenting their latest C++ work or project to attendees and experts in the field. This includes:
- Hosting a Variety of Multimedia Poster Materials which will be embedded in a custom built poster booth in our virtual venue for the entire duration of the event
- A dedicated 30 minute slot to present your poster to attendees through interactive video chat and screen share which will be added to the official C++Online schedule
- Free entry to C++Online Main conference
Virtual Venue (Gather Town)
An exciting, interactive, online conference experience awaits you in our virtual venue.
- Watch Talks With Other Attendees - Like at an in-person conference, you can watch the online talks from presentation rooms in Gather Town.
- Interactive Group Video Chat - Use the Proximity-based Video & Audio Chat for spontaneous interaction with attendees like in a physical venue
- C++Online Quiz Hunt - Take part in our virtual puzzle game by hunting down pub quiz questions hidden in objects around our virtual venue.
- Interactive Objects - Play piano (even as a duet), enjoy embedded games, materials and other fun activities
Discord
Discord is a free-to-use text and audio based discussion app that is available as a website, mobile and desktop app and will be used as the support and communication system for the conference. You can chat with speakers and attendees before, during and after each session at the conference and access live support from one of our online volunteers if you run into an issue.
Zoom Webinar
All of the main conference sessions will be streamed online through Zoom Webinar which allows us to provide the highest quality stream possible and to facilitate the on-demand access to each session. However, to create a more interactive experience, speakers will be encouraged to take questions for their talk in our virtual venue which allows attendees to video chat with the speaker.
Conference Platform / Portal
While attendees will be encouraged to use Gather Town to attend main conference sessions, we also have a user friendly website that can be used as an alternative for anyone who either has an accessibility issue or that is unable to connect to Gather Town. In addition, this website also hosts the schedule for the event and allows for users to create personal agendas for the event.