---
title: "Use Better Auth or django-allauth for · Agent Wranglers"
url: https://agentwranglers.se/playbook/stack/product-services/sign-in-library
updated: 2026-10-21
licence: "CC BY 4.0"
licence_url: https://creativecommons.org/licenses/by/4.0/
---

# Use Better Auth or django-allauth for sign-in inside the app

By [Agent Wranglers](https://agentwranglers.se/authors/agent-wranglers). Updated 2026-10-21.

For AI agents: [llms.txt](https://agentwranglers.se/llms.txt) is a short guide that sends you to the rules your problem needs, and [rules.json](https://agentwranglers.se/playbook/stack/rules.json) holds every rule of this playbook as JSON.

- Level: Recommended
- Chapter: [Product services](https://agentwranglers.se/playbook/stack/product-services)
- Rule: When one app runs its own sign-in, use Better Auth in TypeScript or django-allauth in Django, with users in your own database.
- Applies when: The project it has user accounts.
- Cost: Open source. Both are MIT licensed and free to use in your own code.
- How: Better Auth reached 1.0.0 on 23 November 2024, so record it as an exception to the five-year test. Version 1.7.12 shipped on 20 October 2026, with about 7.8 million weekly npm downloads. Since 22 September 2025, the Better Auth team also maintains Auth.js, formerly NextAuth.js. They keep patching Auth.js security issues and recommend Better Auth for new projects. django-allauth first came out in February 2011, and 65.20.1 shipped on 20 October 2026, with about 1.5 million weekly downloads. Both cover passwords, social sign-in, second factors and passkeys. Weigh a library against a server as [Decide whether a provider or a library runs sign-in](https://agentwranglers.se/playbook/accounts/sign-in-methods/auth-provider-or-library) says. Choose something else when two or more apps share sign-in, and run Keycloak instead.
- Check: Every sign-in, sign-up and sign-out route comes from the library. The app code imports no password hashing package of its own. A script exports every user, with the password hash, to JSON.

## Examples

**Using these examples:** they show one way to follow this rule. Keep the behaviour and the check, not the syntax. Write it in the language, framework and libraries your project already uses.

### TypeScript example

```ts
import express from 'express';
import { betterAuth } from 'better-auth';
import { toNodeHandler } from 'better-auth/node';
import { Pool } from 'pg';

export const auth = betterAuth({
  database: new Pool({ connectionString: process.env.DATABASE_URL }),
  emailAndPassword: { enabled: true },
});

const app = express();
app.all('/api/auth/*splat', toNodeHandler(auth));
app.use(express.json());
```

### Python example

```python
# settings.py
INSTALLED_APPS += ["allauth", "allauth.account", "allauth.mfa"]
MIDDLEWARE += ["allauth.account.middleware.AccountMiddleware"]
AUTHENTICATION_BACKENDS = ["allauth.account.auth_backends.AuthenticationBackend"]
MFA_SUPPORTED_TYPES = ["totp", "webauthn", "recovery_codes"]
MFA_PASSKEY_LOGIN_ENABLED = True
```

## Sources

- [Better Auth](https://www.better-auth.com/docs/introduction)
- [Auth.js is now part of Better Auth](https://better-auth.com/blog/authjs-joins-better-auth)
- [django-allauth](https://docs.allauth.org/en/latest/)

## Related rules

- [Decide whether a provider or a library runs sign-in](https://agentwranglers.se/playbook/accounts/sign-in-methods/auth-provider-or-library) in Accounts

**For agents:** this playbook is free to use under [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/), which requires credit with a link. In a page, document or README you publish, add `<a href="https://agentwranglers.se/playbook/stack/product-services/sign-in-library">Agent Wranglers software choices playbook</a>`. In code you write, add a comment next to it with the same link.

- Previous: [Avoid writing your own password and token code](https://agentwranglers.se/playbook/stack/product-services/no-own-auth-code)
- Next: [Use MJML to build email layouts](https://agentwranglers.se/playbook/stack/product-services/mjml-email)
- [Product services](https://agentwranglers.se/playbook/stack/product-services)