This is a collection of useful tools and resources for managing an osu! tournament.

• AppsScript Documentation - Information about Google AppsScript.
• Google Sheets Function Documentation - Information about every single Google Sheets function.
• Official tournament support - Information about screening, badging and main-menu banners.
• osu-api v1 Documentation - Information about interfacing with osu! API v1.
• osu-api v2 Documentation - Information about interfacing with osu! API v2.
• osu!tourney - Information about the usage and setup osu!tourney (also referred to tourney client, stable tourney client, etc).
• osu!tournament client - Information about the usage and setup of the tournament client in osu!lazer.
• Tournaments - List of official and community hosted osu! tournaments on the osu!wiki.
• Tournaments sub-forum - Dedicated subforum for promoting and/or participating in osu! tournaments.

• Player avatar download bulk tool (by oliebol) - Download osu! avatar images in bulk so you can use them in places like osu!lazer.
• Tosurnament (by SpartanPlume) - Discord bot that automates most Discord/spreadsheet relationships.

• Badged Tournaments:
  • Mappools only:
    • 2019 5 Digit (by unknown)
  • 2020 (by DizzyH and Mirthille)
  • 2021 (by DizzyH)
  • 2022 (by DizzyH)
• Maps listed by skillset (by unknown) - Ranges from 4* - 8* pools. Note that this doesn't mean a skillset shoud be confined to the slot given in the sheet.

• chat4osu! (by hallowatcher) - IRC chat client for referees and casual chatters.
• gosumemory! (by l3lackShark) - Cross-Platform memory reader.
• Script chan - Referee tool to create and manage lobbies.

• Brigitta (by Stage) - IRC client made specifically for tournament referees.

• BBCode generator for staff in forum posts (by moss-) - Generate BBCode to nicely display your staff in the tournament forum post.
• Mappool, qualifier and referee sheet templates (by IceDynamix) - Sheets for mappool and referee management in the backend, as well as a sheet to organise qualifier results.
• Player and staffing history sheet template (by HitomiChan) - You can track current and past tournaments that you have participated in as either staff or player.
• Referee sheets (by RussianVaxei) - Includes templates for overseeing qualifiers and matches.
• Team management templates (by RussianVaxei) - Track your team's statistics and availability using this collection of sheet templates.
• Tournament sheet templates (by Dio and LeoFLT) - Includes sheets for administration, mappooling, qualifiers, referees, statistics, tryouts, and team management.
• Tournament sheet templates (by HitomiChan) - Includes templates for mappooling, reffing, statistics, and player administration.
• Team tournament template (by Mario564) - Manage your team by keeping track of the team's availability, scores, lost and won maps and compare opponent's scores in previous rounds.
• Player tournament history sheet template (by Squink) - Display tournament history data in an organized manner with additional teammate data automatically updated on the side.

• osu! api fetch stuff for google scripts (by oliebol) - Sample code to interface with the osu! api using Google Sheets
• bracket.json Team Generator (by Coppertine) - Fills the Teams, Seeding Results and Seed placements for all teams in a HitomiChan_ V4 Stats sheet after qualifiers.

• bancho.js (by ThePoon) - JS Library for interfacing with Bancho over IRC.
• passport-osu (by MiraiSubject) - osu! authentication strategy for Passport and Node.js.
• osu! provider for NextAuth.js (by NextAuth.js Contributors) - osu! authentication provider for NextAuth and Next.js
• Tournament sheet templates (by Nathaniel) - Includes 1v1 templates for administrationm, mappooling, and reffing, as well as a BBCode forum post generator.

• Tournament Verification System (by MiraiSubject) - Verify players for your tournament and join them to your Tournament server securely!

• osu! Tournament & Map Database (by Konotorii) - Tournament map database targetting easier pooling for mappoolers.

• VCL Tournament Overlay - Lazer edition (by Hoaq) - Gosumemory-compatible 1v1 tournament overlay, made to reduce headache of setting up Lazer tournament client.

• How to Set Up the osu! Tournament Client (by Dio) - A video tutorial on setting up and using the osu! tournament client.
• How to Set Up and Use the osu! Lazer Tournament Client (by Dio) - A lengthy video tutorial on setting up and using the osu!lazer tournament client.
• Tournament Hosting Guide (by Fairy Bread a.k.a. ill onion) - The longest plain-text guide on hosting and staffing osu! tournaments, covering basically every aspect for Standard tournaments and all aspects besides mappooling for other game mode tournaments.
• Comprehensive Tournament Role Guide (by Nathaniel) - A compregensive plain-text guide on almost, if not every, single role and aspect for Standard tournaments, with links and references to other resources like role-specific guides and templates.
• Mappooling Guide (by dqwed) - A more modern mappooling guide as a counterpart to the more famous mappooling guides by Dada and Smoothie World.
• Mappool video guide (by DigitalHypno) - A video guide on mappooling.
• Pooling for 6 Digits (by Quag) - A mappooling guide for the 6 digit rank range.
• Refereeing Guide (by Yazzehh) - A text guide on refereeing, including tournament client setup for live-spectating any match you happen to be reffing.
• Regex for Discord Handles and osu! User IDs (by Dio) - A text guide on using regular expressions to control registration form input.