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    Auth.js preview

    Auth.js Pricing and plans 2026

    Open-source library for adding flexible authentication to JavaScript apps.

    Auth.js

    ToolTrim Verdict
    4.4/5
    Very good

    Auth.js fits developers seeking free, flexible OAuth; for fully managed needs, SaaS like Auth0 fits better.

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    How much does Auth.js cost?

    Free0 €

    Free or open source depending on usage

    Paid plan

    Paid options may apply depending on hosting, team, or volume