Coding competitions (2026)
Coding competitions test how well you solve problems with code under time pressure. Unlike a hackathon, you usually work alone on a set of problems that are scored automatically.
Each listing shows the format, duration, languages allowed and prizes.
Open and upcoming
Nothing is open here right now. New hackathons are added every week.
Frequently asked questions
How are coding competitions scored?
Usually by the number of problems solved and the time taken, with penalties for wrong submissions. The scoring rules are on each competition page.
Do I have to pay to register on Hack4Hack?
No. A Hack4Hack account is free, and most hackathons are free to enter. When an organizer charges a fee, it is shown on the hackathon page before you register.