Aviationstack is a scalable REST API for real-time flight tracking, historical flight data, airport info, and global aviation data.
from $49.99/mo
About Userbase
What is Userbase?
Userbase is the easiest way to add user accounts and data persistence to your static site. It provides a simple JavaScript SDK that works directly from the browser, so you can build secure web apps using only static HTML, CSS, and JavaScript. No backend server to manage or deploy.
What problem does it solve?
Traditional web apps require a backend for authentication and database operations. Userbase replaces both with a zero-management, client-side approach. User accounts are handled by the SDK, and data queries happen in the browser. This dramatically simplifies development, reduces hosting costs, and eliminates security overhead.
Who is it for?
Userbase is ideal for static site developers, solo founders, and teams building small to medium web apps who want to skip backend work. It is also great for projects requiring tight privacy controls, thanks to built-in end-to-end encryption. It is not designed for high-traffic enterprise apps with complex server-side logic or for users who need a traditional SQL database.
Real use cases
Build a private note-taking app, a membership-only content site, a simple e-commerce catalog with user favorites, or a SaaS prototype that needs user accounts and data storage. Userbase is open source (MIT licensed) and can be self-hosted or run by the Userbase team for a full serverless experience.
Key features
- Built-in user accounts — Sign up, log in, and log out users directly from your static site with the Userbase SDK.
- Zero-management database — User data goes directly to the browser; client-side queries with no backend to maintain.
- End-to-end encryption — All database operations are encrypted in the browser with user-controlled keys for strong data privacy.
- Open source (MIT licensed) — 100% open source; self-host or use the managed service for a serverless experience.
- Simple JavaScript SDK — All features accessible through a single SDK that works directly in the browser.
- Stripe integration — Accept payments with one-click Stripe integration on the Prod plan.
SaaSpartout Score
7.1
/10
Editorial score from our review methodology — not user ratings.
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Userbase Pricing
Userbase pricing: from $0/yr.
For comparison: the median starting price in Developer Tools is $19.99/month, measured across 301 tools we track. See the full SaaS Pricing Index →
Starter — $0 per year
1 web app, 100 users, 100 MB storage, all features, limited support. No credit card required. No expiry.
Prod — $89 per year
Unlimited web apps and users, 1 GB storage, accept payments, 1-click Stripe integration, 48-hour support.
Storage Add-on: 100 GB — $99 per year
No storage limit (additional $0.10/GB/month above 100 GB), unlimited files and databases. Requires Prod subscription.
Storage Add-on: 1 TB — $299 per year
No storage limit (additional $0.10/GB/month above 1 TB), unlimited files and databases. Requires Prod subscription.
All plans include a free admin account with no credit card required to start. Self-hosting is free under the MIT license.
Frequently asked questions
Is Userbase free?
Yes, Userbase has a free Starter plan at $0 per year for up to 100 users, 1 web app, and 100 MB storage. No credit card is required.
How much does Userbase cost?
The Starter plan is free. The Prod plan costs $89 per year. Additional storage plans start at $99 per year for 100 GB or $299 per year for 1 TB. Self-hosting is free under the MIT license.
How does Userbase work?
Userbase provides a JavaScript SDK that runs in the browser. It handles user accounts (sign up, login, logout) and stores data client-side, so you don't need a backend server.
Who is Userbase best for?
Userbase is best for static site developers, indie hackers, and small teams building web apps without a backend. It's also ideal for apps needing end-to-end encryption and simple GDPR compliance.
What are the main limitations of Userbase?
The free Starter plan is limited to 100 users, 1 web app, and 100 MB storage. Userbase is not suited for complex server-side logic or very large enterprise applications.
What are some alternatives to Userbase?
Popular alternatives include Firebase (for full backend), Supabase (open source backend-as-a-service), and Auth0 (user authentication). Userbase is simpler and focuses on static sites with minimal setup.
