Is Better Auth Free? The Better Auth License Explained

GitHub’s summary of the better-auth repository license: the MIT License, with permissions for commercial use, modification, distribution and private use, limitations of liability and warranty, and the condition to keep the license and copyright notice.

Better Auth is free and open source under the MIT License, so you can use it in commercial apps at no cost. Here’s what the license allows and which costs you might still meet.

November 13, 2026 1

Is TanStack Start Free for Commercial Use? The MIT License Explained

GitHub’s license summary for the TanStack/router repository, which holds TanStack Start: MIT License, with commercial use, modification, distribution and private use listed as permissions, liability and warranty as limitations, and a license and copyright notice as the condition.

Yes: TanStack Start is free for commercial use under the MIT License. Here’s what the license lets you do, the one condition it sets, and the costs that can still come up.