Best Thirdweb Alternatives [2025]

Thirdweb is a developer platform offering tools and SDKs to help you build and deploy web3 applications across EVM-compatible chains. One of its biggest value-adds is its library of prebuilt, extensible smart contracts and its SDKs for integrating with them. Still, depending on your needs—especially if you're building a more wallet-centric experience, need custom authentication, or want to control more of your infrastructure—there are several alternatives worth evaluating.

Here are the top alternatives to Thirdweb in 2025:

1. Openfort (that's us 👋)

Openfort is an open-source wallet infrastructure and ecosystem SDK designed for developers who want full control over their wallet experiences. It enables you to build and embed smart wallets into apps and games, with a focus on user experience, interoperability, and extensibility.

Openfort is not just another wallet SDK—it’s a fully open wallet framework with a modular set of tools. The stack includes:

• A wallet UI framework to help build custom wallet apps and in-app wallet flows.
• A client SDK to inject EIP-1193-compatible providers and handle transaction signing.
• A backend communication layer for secure and permissioned app-to-wallet coordination.

Key features

Compared to Thirdweb, Openfort takes a more modular, self-sovereign approach with open-source tooling from end to end:

• Smart Wallet Infrastructure: Fully self-custodial smart account infrastructure (ERC-4337 and EIP-7702 ready).
• Open Source and Self-Hostable: Audit and control every component—host it on your own infra.
• Developer SDKs: UI hooks, popup management, transaction workflows, and extensible session support.
• Custom Authentication Support: Integrate your own Auth0, Firebase, or custom auth without vendor lock-in.
• Game-Ready: SDKs for Unity WebGL, Telegram mini-apps, React Native, and web.

How does Openfort compare to Thirdweb?

Feature	Openfort	Thirdweb
Open Source	✅ Yes (all core components)	✅ Yes (SDKs and contracts)
Self-Hostable Infrastructure	✅ Yes	✅ Yes (partial; core backend only)
Smart Contract Library	❌ No	✅ Yes (contracts for drops, tokens, etc.)
Smart Wallet Support	✅ Native ERC-4337 + EIP-7702	✅ Limited embedded wallet support
Custom Authentication	✅ Fully flexible	❌ Tied to Thirdweb Auth
Popup and Session Management	✅ Integrated	❌ None
Unity/Telegram SDKs	✅ Yes	❌ No
Pricing	Transparent, usage-based	Free + usage tiers

Why do developers choose Openfort?

• Build your own wallet SDK: Go beyond basic web3 providers. Openfort lets you build the exact UX your app needs.
• Everything is open: From UI to backend orchestration to session handling.
• Interoperable with your stack: Use your own auth, session storage, domain logic, and deployment infra.
• Future-ready: Native support for account abstraction primitives like EIP-4337 and EIP-7702.

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2. Privy

Privy focuses on abstracting away wallet creation and private key management. It's popular among apps that want to offer seamless onboarding with email or social logins.

✅ Pros:

• Fast integration for embedded wallets with social logins.
• End-user UX is simple and familiar.

❌ Cons:

• Closed source with vendor lock-in.
• Less control over wallet logic or session handling.

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3. Sequence

Sequence offers a developer platform with SDKs and a wallet product, targeting games and consumer apps.

✅ Pros:

• Unity SDK and game-friendly onboarding.
• Built-in multisig smart wallet.

❌ Cons:

• Closed source infrastructure.
• You’re locked into the Sequence wallet ecosystem.

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4. Dynamic

Dynamic is a wallet connection and embedded wallet provider with a focus on multi-wallet UX and social login onboarding.

✅ Pros:

• Clean developer dashboard and UX options.
• Easily switch between external and embedded wallets.

❌ Cons:

• Embedded wallets tied to Dynamic infra.
• Not designed for custom wallet flows or account abstraction.

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5. Turnkey

Turnkey provides programmable key management APIs for teams building custodial or semi-custodial wallet products.

✅ Pros:

• Designed for enterprise-grade custody and automation.
• Flexible key policies and audit trails.

❌ Cons:

• No wallet UI or frontend SDK.
• More complex to use without devops support.

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6. Fireblocks

Fireblocks is a leading MPC-based wallet and custody solution for institutions.

✅ Pros:

• Security-first with advanced policy controls.
• Used by exchanges and enterprise clients.

❌ Cons:

• Enterprise-focused; not startup-friendly.
• Requires sales calls and onboarding.

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7. Coinbase Wallet SDK

Coinbase Wallet SDK helps users connect to dApps using their Coinbase Wallet accounts, with some support for mobile deep linking.

✅ Pros:

• Popular among Coinbase users.
• Supports mobile and desktop connect.

❌ Cons:

• Only works with Coinbase Wallet.
• Not designed for embedded or smart wallets.

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FAQ

1. Is Openfort open source?

Yes, Openfort is fully open source. You can audit the code, run your own infra, and contribute back.

2. Does Openfort support smart contract wallets?

Yes, Openfort natively supports ERC-4337 and EIP-7702 for smart accounts.

3. Can I use my own authentication system with Openfort?

Absolutely. Openfort is compatible with Auth0, Firebase, or any custom auth provider.

4. How does Openfort differ from Thirdweb?

Thirdweb excels in smart contract libraries and fast integrations, while Openfort is focused on wallet infrastructure and developer flexibility—giving you full control over UX, infra, and wallet sessions.