Signaturely - Super simple eSignature software
Fondu - Open source free ICO smart-contract builder
Woleet Sign - eSignatures secured by Bitcoin
SmartContract.com - ChainLink - Connect Smart Contracts to your Applications and Data
HTMLCSS to Image API - Convert HTML to an image (jpg, png, webp). Renders images exactly like Google Chrome. Works with PHP, JavaScript, Ruby, .NET and more.
thirdweb - 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.