Non-custodial stablecoin bridge

Non-custodial stablecoin bridge between Tron and EVM chains

Untron is a cross-chain protocol for moving stablecoins between Tron (TRC-20) and major EVM networks. Bridge USDT and USDC from Tron to Ethereum, Arbitrum, Base, and more with gasless UX, low fees, and a trust-minimized design.

Never touch Tron again — but keep your TRC-20 payments.

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For stablecoin users: bridge USDT and USDC between Tron and EVM

Untron is a web-based platform you can use from any exchange or wallet to send stablecoins between Tron (TRC-20) and dozens of popular EVM chains. It’s gasless for end users — you don’t need ETH, TRX, or BNB to use it — and it’s incredibly cheap.

For example, swapping USDT to a Tron address is exactly $2 (just gas fees) without any additional fees — about twice as cheap as sending USDT directly on Tron.

In short, Untron connects cheap and convenient EVM chains to Tron’s vast payments ecosystem, letting you benefit from both.

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For businesses: rebalance stablecoin liquidity between Tron and EVM at scale

From payment merchants and rails to OTC desks and Argentinian cuevas, Untron is the way to rebalance stablecoin liquidity across chains worldwide. Move millions of dollars in minutes between Tron and EVM chains, without relying on centralized exchanges.

Fully audited contracts and a trust-minimized design ensure that funds can be bridged with no arbitrary limits or restrictions.

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For developers: integrate Untron with one API call

Integrating Untron into your product is as simple as a single API call and a smart contract transaction. Our hosted, free APIs are open-source and can be self-hosted for maximum control.

Untron V3 and Untron Intents smart contracts have been audited and formally verified by Ultrasound Labs. Both use a ZK-based Tron light client design as the source of truth, making Untron one of the most trust-minimized stablecoin bridges in the ecosystem.

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Fees & pricing

Untron is free to integrate and self-host. The examples below are approximate and may change over time; always check current rates in the app.

Swapping $100 from Tron to an EVM chain

Includes TRX gas fees, if applicable.

Service	Received amount (approx.)
Untron	$99.90 (0.10%)
FixedFloat	$98.50 (~1.5%)
ChangeNOW	$98.50 (~1.5%)
Symbiosis	$94.00 (0.30% + gas fees)*
Bridgers	$94.00 (0.30% + gas fees)*

* Most decentralized bridges like Symbiosis and Bridgers require a smart contract call on Tron, which costs around $5 in TRX gas fees. FixedFloat and ChangeNOW are centralized exchanges and do not require that call.

Untron is the only decentralized bridge that doesn’t require Tron smart contract calls, can be used from any exchange or wallet, and is cheaper than both centralized and decentralized alternatives.

Swapping $100 from an EVM chain to Tron

Service	Received amount (approx.)
Untron	$98.00 (fee-free into Tron)*
FixedFloat	$98.50 (~1.5%)
ChangeNOW	$98.50 (~1.5%)
Symbiosis	$90.00 (0.30% + gas fees)
Bridgers	$90.00 (0.30% + gas fees)

* Untron does not charge bridging fees for swapping into Tron USDT and optimizes gas usage on Tron, making it twice as cheap as a normal Tron USDT transfer — practical even for daily transfers to Tron users.

Supported stablecoins and EVM chains

Stablecoins

USDT (TRC-20, ERC-20, and supported EVM deployments)
USDC (where available)

EVM networks

Ethereum
Arbitrum
Optimism
Base
BNB Chain
…and more

Untron’s fee structure is consistent across chains and routes, keeping transactions affordable and easy to reason about, no matter where your crypto is.

Security

Untron is a non-custodial Tron ↔ EVM stablecoin bridge. Our protocols read the Tron blockchain in real time as the source of truth, so funds only leave your possession if the Tron blockchain has processed the transaction you requested.

Our smart contracts have been audited and formally verified by Ultrasound Labs and are built around a ZK-based Tron light client. This makes Untron the gold standard of trust-minimized bridging solutions not just in Tron, but the entire bridging ecosystem.

FAQ

Is Untron non-custodial?

Yes. Untron never holds your private keys. All transfers are executed via your wallet and Untron smart contracts; you remain in control of your funds at all times.

Do I need TRX or ETH gas to use Untron?

End-user experience is gasless. Untron abstracts gas costs on supported routes so you can bridge stablecoins without pre-funding TRX or ETH.

Is KYC required to use Untron?

No. Untron is a non-custodial bridge and does not require KYC. You can bridge stablecoins without any identity verification.

Which countries is Untron available in?

Untron’s decentralized protocols have no idea what country you’re in. Our official interface (website) for using Untron does not impose additional restrictions, so you should be able to use it from anywhere in the world.

What amounts are safe to bridge?

Untron is designed to be safe for all amounts. Additionally, our interface automatically limits the maximum amount, so it’s impossible to enter an amount that would exceed the platform’s capacity.