> ## Documentation Index > Fetch the complete documentation index at: https://extension.js.org/llms.txt > Use this file to discover all available pages before exploring further. # Extension.js hall of fame and contributors > Recognize the contributors and sponsors who shaped Extension.js across the framework core, documentation site, examples, and developer experience tooling. Contributors across the framework, the docs site, and the surrounding developer experience shape both Extension.js and `extension.js.org` as open-source efforts. You can contribute in different ways: compiler and runtime work, documentation, examples, design, feedback loops, and funding. This page recognizes contributors to both the framework and the documentation site, and the sponsors and backers who fund the work. ## Authors of [extension.js](https://github.com/extension-js/extension.js) These contributors helped build and improve the framework itself, including the CLI, build/runtime behavior, browser support, tests, and developer workflow: Extension.js Core Contributors ## Authors of [extension.js.org](https://github.com/extension-js/docs) These contributors helped improve the docs site, examples, information architecture, and learning experience around Extension.js: Extension.js Documentation Contributors ## Used by See the [showcase](/showcase) for extensions that people use every day, built with Extension.js, and how to add yours. ## Sponsors Companies that fund Extension.js through [GitHub Sponsors](https://github.com/sponsors/cezaraugusto). From Silver up, the tier also earns a place on the [front page](https://extension.js.org) and in the README, and courtesy placements granted before these tiers were published still stand. This page lists every tier. ### Partner Extension.js is built by the team behind [extension.dev](https://extension.dev/?utm_medium=sponsor\&utm_source=extensionjs), the platform that hosts the build, share and store submission side of shipping an extension. ### Bronze sponsors TestMu AI TestMu AI The Platinum, Gold and Silver tiers are open. ## Backers Individuals who fund Extension.js with a monthly sponsorship. Generous backers are listed first, with a link of their choice. The full list lives in [BACKERS.md](https://github.com/extension-js/extension.js/blob/main/BACKERS.md). *Be the first.* ## Infrastructure partners Services donated to the project in kind: * [Mintlify](https://mintlify.com) hosts this documentation site through its open source program. ## Become a sponsor Every tier includes the tiers below it. Recurring sponsorships earn placement, one-time gifts are thanked in BACKERS.md. Sponsorship does not include event promotion or promotional campaigns. | Tier | Monthly | What you get | | - | - | - | | Backer | \$5 | Name in BACKERS.md and on this page | | Generous Backer | \$25 | Name and link, listed above other backers | | Bronze Sponsor | \$50 | Logo and link on this page and in BACKERS.md | | Silver Sponsor | \$200 | Logo and link on the front page of extension.js.org and in the README on GitHub and npm | | Gold Sponsor | \$500 | Larger front page tile, priority issue triage, posts from @extensionjs when you ship something extension developers should know about | | Platinum Sponsor | \$1,000 | Top position and label, a co-built example in extension-js/examples, a quarterly roadmap call, one post per quarter with your copy | | Partner | by agreement | One exclusive "In partnership with" placement and integration work agreed together | Sponsor at [github.com/sponsors/cezaraugusto](https://github.com/sponsors/cezaraugusto). After you sponsor, send a light and a dark SVG of your logo and the link you want, the welcome email explains where. ## Contribute Want to help shape the framework? Read the [Extension.js contributing guide](https://github.com/extension-js/extension.js/blob/main/docs/CONTRIBUTING.md) to get set up and start contributing. This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.