v3.4.2 • Released Oct 14, 2025

Desktop wallet for USDT. Local keys, no cloud. Free to use.

Built for power-users: M-of-N multisig wallets, encryption at rest, zero telemetry, and FREE Gas (Energy) routing for seamless transfers.

  • Open-source
  • M-of-N multisig
  • Local keys · Offline mode
  • Zero telemetry
TRUSTED BY USERS Worldwide
Desktop installs
500K+

Non-custodial users on Windows, macOS & Linux.

Shipping since
2018

Years of real-world production usage.

Release cadence
Weekly

Stable desktop builds, not just marketing drops.

Download USDT Wallet Desktop

Install the hardened desktop app for your primary device. See installation docs for full setup steps.

Stable v3.4.2
WHAT'S INSIDE

Inside the wallet stack

The app is built as three concrete layers — Vault, Routing, and Operator Console — so you always know what protects keys, what moves funds, and what you control.

The wallet stack

Every feature in the app belongs to one of three layers. Together they form a stack that’s predictable to reason about — even under stress.

  1. 01 · Vault Keys, seed phrases, and cold storage. Argon2id + OS keychain, hardware wallets, multisig, encrypted backups.
  2. 02 · Routing How your USDT actually moves. Multi-chain adapters, FREE Gas (Energy) relays, fee estimator with manual override.
  3. 03 · Operator console Your day-to-day control surface. Policies, offline mode, readable errors, and a versioned changelog.

The feature cards on the right are grouped by layer, so you can quickly see what protects what. Learn how these layers interact in the security model and the networking docs.

Vault layer

Keys stay on your machines

  • At-rest encryption via Argon2id plus the OS keychain.
  • Hardware wallets (Ledger & Trezor) with on-device confirmation.
  • Full M-of-N multisig with named cosigners and clear prompts.
  • Seed export with human-readable verify lines for cold backups.

Multisig setup guide

Routing layer

FREE Gas & fee control

  • Multi-chain adapters for major USDT networks with predictable fees.
  • FREE Gas (Energy) relay network with health checks and fallbacks.
  • Advanced fee estimator with manual override when you need it.
  • Exact receive-amount preview before every send.

See Networking & FREE Gas docs for technical details.

Community

A few of the people and teams you’re most likely to meet first when you open issues, propose changes, or ask for help.

Alex — core maintainer

Alex

Core maintainer · Runtime

Core team

Keeps the runtime stable, reviews risky changes, and makes sure upgrades don’t break real-world setups.

Julian — docs & guides

Julian

Documentation · Guides

Onboarding

Turns rough notes, edge cases, and internal checklists into clear, “copy–pasteable” guides that teams can actually follow.

MultisigStudio

MultisigStudio

Multisig setups · Protocol design

Partner studio

Contributes real-world M-of-N schemes, rotation patterns, and failure modes for teams that must not lose access or continuity.

These are just some of the folks involved — there’s a wider group of reviewers, translators, and maintainers you’ll see across issues and pull requests.

Frequently Asked Questions

FAQ

Straight answers to the important questions: who controls your keys, how FREE Gas behaves, what happens if you lose your password, and how to verify that the build is legitimate.

This is a non-custodial wallet: you hold your own keys and seeds. For a deeper explanation of how keys are stored and encrypted, see the security model.