Best Smile Coin Web3 SDK Alternatives & Competitors in 2025

Ramper is a free web3 SDK for DApps to onboard users quickly.

Low-code for building sophisticated apps

Flagsmith lets you manage feature flags and remote config across web, mobile and server side applications. Deliver true Continuous Integration. Get builds out faster. Control who has access to new features. We're Open Source.

Try for free Open Source freemium

One billion users were left behind in Web 2.0Evolving them is our mission

dappKit is an easy-to-use framework that builds the foundations required to interact with blockchain nodes.

The easiest way to understand web3 projects & wallets.

thirdweb is an ecosystem of SDKs, dev tools, and dashboards that help teams build and manage web3 apps. Deploy custom or pre-built contracts to ETH, MATIC, AVAX, & more.

Open Source free

No-code Crypto payments for everyone

A platform to help you start a career in Web3 projects like Polkadot, CakeDefi and TronJoin the future happening today, ygmi!

Where you learn more about cryptocurrencies

The Coinramp Card lets you ‍spend over 10+ cryptocurrencies like cash, online, in-stores and ATM withdrawals. Available in 100+ countries, no ID needed. Anonymous Crypto Cards

freemium $5.0 / Monthly (First month free if you load atleast $100)

80+ trends in AI, AR, VR, IoT, 3DP, etc.

An online free academy to learn about web3 and start building the future

Appscope, one of the leading directories for Progressive Web Apps (PWAs).