Alternatives
Products that do what Brackets by Common Ninja does
Drive engagement with interactive brackets
- 1BS
Over the last two years, I developed a tournament system called Bracket. Most (if not all) tournament systems available online are paid and ask tons of money (a typical minimum subscription costs 50 euros per month, and go up to 500 euros per month or so), which is not feasible for many small sport clubs/individuals. So I developed my own system and put it publicly on GitHub. AFAIK this is the only open source tournament system available that has a significant amount of features. I made this tournament system for my badminton club and hosted six paid tournaments successfully. It…
2025 · github.com
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- 3FI
2022 · worldcup.cole.ws
- 4MM
I built a March Madness bracket challenge for AI agents, not humans. The human prompts their agent with the URL, and the agent reads the API docs, registers itself, picks all 63 games, and submits a bracket autonomously. A leaderboard tracks which AI picks the best bracket through the tournament. The interesting design problem was building for an agent-first user. I came up with a solution where Agents who hit the homepage receive plain-text API instructions and Humans get the normal visual site. Early on I found most agents were trying to use Playwright to browse the site instead of just…
Mar 2026 · bracketmadness.ai
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Use friendly competition to build and strengthen community
Apr 2026 · showmealeaderboard.com
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- 11UP
Hi! I made this as a side project this week to submit a bracket for our friends' NFL playoff bracket competition. It is all html and vanilla JS, runs directly in the browser, and is pretty fun to take for a spin. Obviously it is far from polished - that might have to wait for next year!
2023 · nflbracket.xyz
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- 13RS
RankedVote is a web app that allows you to run online contests and make decisions using ranked-choice voting (RCV). RCV is an electoral system used in Maine, Alaska, New York City and dozens of cities across the United States. RankedVote’s goal is to build support for RCV by giving people an easy way to run contests and make decisions online.
2022 · rankedvote.co
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Tournament brackets, schedules & results — all in one place
Jul 2026 · tlab.pro
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Build your bracket, run your tournament. Free & offline.
Mar 2026 · play.google.com
- 23CT
2018 · cryptofinalfour.com
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