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Reserve

Cold storage
that holds the heat.

Air-gapped keys. Open firmware. Quiet self-custody for the long hold.

Reserve

$3.8B stolen from crypto exchanges and hot wallets in 2022.

With Cinder, your keys stay offline and under your control.

Planned features

Security by design. Cinder combines hardware-level protection with a calm, readable companion experience.

Secure Element Chip

Bank-grade cryptographic chip provides hardware-level protection for private keys.

Offline Transaction Signing

Sign transactions completely offline with air-gapped security architecture.

Multi-Chain Support

Store Bitcoin, Ethereum, and 1000+ cryptocurrencies on a single device.

Encrypted Recovery System

Military-grade encryption protects your seed phrase backup and recovery process.

Open-Source Firmware

Fully auditable codebase ensures transparency and community verification.

Desktop & Mobile Apps

Companion applications for seamless management across all your devices.

Cinder air-gapped hardware wallet in a three-quarter front view

Plate The device, after the fire settled.

Hot wallet vs Cinder

The critical differences between software wallets and hardware cold storage.

Hack vulnerability

Hot wallet Always online and exposed to internet attacks

Cinder Offline storage, immune to remote hacking

Custody control

Hot wallet Third-party custody risk with exchanges

Cinder Complete self-custody and ownership

Connection type

Hot wallet Cloud-connected, vulnerable to breaches

Cinder Air-gapped architecture, physically isolated

Privacy first.

Zero-trust security architecture. Your data stays private. Your keys stay local.

  • No telemetry. Zero data collection. We never track your usage or behavior.
  • No tracking. No monitoring, no surveillance. Your activity is yours alone.
  • No cloud. No cloud dependencies. Everything operates locally and offline.

Your private keys are generated and stored exclusively on the hardware device. They are never transmitted, never synced, never exposed to internet-connected systems.

Third-party security audits and penetration testing reports will be published before launch.

Macro view of Cinder's ember-orange confirmation button and side control

Built for every crypto user

From individual investors to institutional treasuries, Cinder scales to your security needs.

Long-term holders

HODLers securing large crypto positions for years need maximum security. Cinder provides bank-vault-level protection for generational wealth storage.

DAO treasuries

Manage organizational crypto assets with multi-signature security. Cinder enables secure governance for decentralized autonomous organizations.

Business reserves

Companies holding cryptocurrency on balance sheets require institutional-grade custody. Cinder provides audit-ready cold storage solutions.

A hand holding the Cinder hardware wallet against ash paper

Why join the waitlist now

Be among the first to experience next-generation crypto security. No payment required. Q1/Q2 2027.

  • Early access

    Get immediate access to Cinder when it launches in Q1/Q2 2027, before public availability.

  • Exclusive launch pricing

    Lock in special pre-order pricing reserved exclusively for early waitlist members.

  • Priority shipping

    Receive your Cinder Wallet before standard orders with expedited delivery.

  • Beta firmware access

    Join the exclusive beta testing program and help shape Cinder before official release.

  • Limited first batch

    Guaranteed allocation from the first production run. Limited quantities available.

Questions

Reserve your spot

No payment required. Secure early access with exclusive benefits. Be first in line when Cinder launches.

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Crypto interest (optional)

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