Dev tools · alternatives · 2026
24 alternatives to A secure, open source U2F token you can make with $4.5 worth of parts
U2F USB token optimized for physical security, affordability, and style - conorpp/u2f-zero
U2F Zero is an open source USB security token designed for two-factor authentication. It can be assembled from affordable components costing around $4.50, making it accessible for developers and security-conscious… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. A secure, open source U2F token you can make with $4.5 worth of parts launched in 2016; newer entries below may have overtaken it.
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Burner▲206I'm Cameron, one of the founders at Arx Research. Last year we launched Burner, an easy to use and low cost NFC-based hardware wallet that supports Ethereum and Bitcoin. This week we're announcing Burner Terminal, a point of sale device designed for native tap to pay stablecoin payments. While there are a number of projects that have allowed for cryptocurrency and stablecoin payments via QR code over the years, we believe that in most developed markets the user experience of contactless cards has won for retail payments. We saw some early interest in using Burner for tap payments, however,…
2024 · burner.pro · its alternatives →
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A Virtual FIDO2 USB Device. Contribute to bulwarkid/virtual-fido development by creating an account on GitHub.
2022 · github.com · its alternatives →
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Secur3▲77First decentralized 2FA solution for self-custodial wallets
2022 · secur3.xyz · its alternatives →
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Solo 1 firmware in C. Contribute to solokeys/solo1 development by creating an account on GitHub.
2018 · github.com · its alternatives →
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Hi HN, We (myself, Adhyyan1252 and yush_g) are undergrad students that hacked out this side project last month during Hack Lodge[1] (the ideas and many of the underlying circuits for which came from the 0xPARC community[2])! We’re extremely excited to share this new primitive. Besides the technical challenges building this project that folks here would find interesting (fixing the ZK proof compiler, modifying nodeJS V8 params etc.), we think this is a very novel use case for ZK tech, and ECDSA inside ZK-SNARKs is a starting point that unlocks many other ideas! :D A summarized version of our…
2022 · github.com · its alternatives →
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Digital Bitbox▲103A minimalist and secure Bitcoin hardware wallet
2017 · bitbox.swiss · its alternatives →
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imToken 2.0▲120Safely store, manage, trade, use your BTC, ETH and EOS
2018 · token.im · its alternatives →
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2016 · sc4.us · its alternatives →
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x402▲119Hi HN – excited to announce x402, initially developed by Coinbase (YC 12) x402 lets any HTTP API charge per request without issuing API keys or storing credit cards. Buyers (humans or AI agents) keep funds in their own wallet and dynamically discover compatible endpoints, call them as usual, and automatically pay a microtransaction in USDC or other tokens to settle. 90 second demo: https://www.youtube.com/watch?v=PV-L2AfLhJg Problem: Every time we want to use a new API we have to: find the service online create a developer account, copy a secret key into env vars, pre-fund or…
2025 · x402.org · its alternatives →
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0x Portal▲97A dApp for user on-boarding, education and DEX discovery.
2018 · 0x.org · its alternatives →
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Simple and secure wallet for Ethereum & ERC20 tokens
2018 · conicoin.io · its alternatives →
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An open source Hardware Secure Module in your hands. Keep your private and secret keys safe with Pico HSM.
2024 · picokeys.com · its alternatives →
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Strong authentication with a simple touch of a button
2016 · yubico.com · its alternatives →
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Unphishable, zero-touch two-factor logins
2018 · krypt.co · its alternatives →
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Free & OpenSource software for managing cold storage wallets
Apr 2026 · bitcoin-safe.org · its alternatives →
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Sign, authenticate and encrypt with a USB dongle at the cost of a soda. The goal here was to easily program around ~20 Gnuk devices at the budget of a single dongle of the commercial solution. Contains every step and fixes to get it running on current and next Ubuntu and Debian versions.
2025 · github.com · its alternatives →
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Decentralized 2 factor authentication app built on Textile & IPFS - airsecure/airsecure
2019 · github.com · its alternatives →
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Tokenized luggage protection. Safer, cheaper & more reliable
2018 · its alternatives →
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Definitely one of those "20 minute adventure gone wrong" projects where all I wanted initially was a quick wireless rubber ducky for bitlocker keys and the like and then I kept adding stuff like AES-256..... Currently working on adding WebAuthn/FIDO support because the hardware is already there and scope creep is a lifestyle at this point. Would love feedback, especially on the security side. Repo and PCB files are fully open source.
Jul 2026 · github.com · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →