Clarinet
HiroBest for Writing, testing and deploying Clarity smart contracts on Stacks
Catch Only for Clarity on Stacks, and the local devnet needs Docker
- Chains
Stacks- Price
- Free (open source)
Stacks smart contract frameworks and SDKs
2 smart contract frameworks and SDKs whose own docs name Stacks, compared on price, network and the catch. Checked against each maker's own pages; last updated Oct 18, 2026.
| Tool | Best for | Price | Stacks | Catch |
|---|---|---|---|---|
| Clarinet | Writing, testing and deploying Clarity smart contracts on Stacks | Free (open source) | Mainnet | Only for Clarity on Stacks, and the local devnet needs Docker |
| Stacks.js | JavaScript/TypeScript SDK for Stacks transactions and wallet connections | Free (open source) | Mainnet | Split into many packages, so you have to work out which ones you need |
Compare two side by side: Clarinet vs Stacks.js
Stacks.js
Stacks LabsBest for JavaScript/TypeScript SDK for Stacks transactions and wallet connections
Catch Split into many packages, so you have to work out which ones you need
- Chains
- Stacks
- Price
- Free (open source)
See every Stacks developer tool or all Smart contracts & SDKs picks. Prices change often, so confirm on each maker's page.
Know when chain support changes
One short email when we add tools or a tool adds, drops or deprecates a chain. Nothing new, no email. Unsubscribe anytime.