TON Launches Tolk, New Smart Contract Language With Lower Costs and Faster Development
1TON Foundation designates Tolk as the new standard for smart contracts, promising up to 40% lower gas fees and a faster, modern development experience across DeFi and gaming.
The TON Foundation has released a new smart contract programming language called Tolk, aiming to simplify development on The Open Network blockchain while cutting costs for builders.
Announced Thursday, Tolk replaces the older FunC language as TON’s new development standard and was designed specifically for the network’s asynchronous actor model. The foundation says Tolk will make smart contract development more accessible for newcomers and more efficient for experienced teams deploying high-throughput applications.
Tolk introduces a cleaner syntax and modern structure, while preserving the low-level control and performance required by advanced developers. According to the foundation, contracts written in Tolk can use up to 40% less gas than equivalent contracts in FunC, offering substantial savings in execution fees and improved scalability.
“This is a turning point for TON developers,” said Anatoly Makosov, core developer at TON Core, in the announcement. “Tolk delivers the clarity and power developers expect without sacrificing the performance, control, or efficiency needed to scale on-chain.”
The launch includes full tooling support, including migration paths for existing contracts and integration with widely used development environments. The Foundation framed the upgrade as a way to remove long-standing bottlenecks in the smart contract workflow and accelerate adoption across decentralized finance, gaming, and social applications.
Tolk’s introduction is part of a broader strategy by the TON Foundation to enhance the developer experience and drive ecosystem growth by aligning with more modern programming conventions and improving deployment efficiency.
Despite the milestone, TON’s native token was trading lower at the time of writing. TON-USD stood at $3.1696, down 1.73% over the previous 24 hours, according to CoinDesk data.
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Siamak Masnavi is a researcher specializing in blockchain technology, cryptocurrency regulations, and macroeconomic trends shaping the crypto market. He holds a PhD in computer science from the University of London and began his career in software development, including four years in the banking industry in the City of London and Zurich. In April 2018, Siamak transitioned to writing about cryptocurrency news, focusing on journalism until January 2025, when he shifted exclusively to research on the aforementioned topics.
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https://www.coindesk.com/markets/2025/07/19/ton-launches-tolk-new-smart-contract-language-with-lower-costs-and-faster-development
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