Work · alternatives · 2026
24 alternatives to StealthDrop – Anonymous crypto airdrops using zero-knowledge proofs
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…
StealthDrop is a system for distributing cryptocurrency airdrops anonymously using zero-knowledge proofs. Built by undergraduate students, it enables recipients to claim tokens without revealing their identity by… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. StealthDrop – Anonymous crypto airdrops using zero-knowledge proofs launched in 2022; newer entries below may have overtaken it.
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Crypto 101▲126Free Intro course on cryptography available for programmers
2014 · crypto101.io · its alternatives →
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Airdrop Tracker▲460Discover 300+ largest web3 airdrops. Get AI recommendations
2024 · defi.oneclick.fi · its alternatives →
- 4DP
2018 · stealthy.im · its alternatives →
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Stealthy▲94Messaging with blockchain identity and user controlled data
2018 · stealthy.im · its alternatives →
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This is a project I made to learn more about crypto. I've also written a [post](https://vaktibabat.github.io/posts/ecurvechat/) that explains all the crypto concepts and algorithms used in the project, and how I implemented them. I'd be very glad for any feedback about both the code and the post :)
2024 · github.com · its alternatives →
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We are dedicated to helping freelancers and companies rethink how to do business. We offer smart contract-powered solutions for reducing fees and legal overhead by directly connecting hires and applicants peer to peer.
2021 · about.cryptotask.org · its alternatives →
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I've always been fascinated by cryptographic principles, so I decided to dive deep into zero-knowledge proofs and implement a Groth16 proof verifier entirely in Rust. This project validates cryptographic proofs and demonstrates how succinct, verifiable computations can be achieved. Using Rust's powerful libraries like arkworks, I implemented pairing checks, public input commitments, and proof validation logic while ensuring the code remains modular and efficient. I handled the complexities of affine group operations, scalar multiplications, and optimized public input verification to make…
2024 · github.com · its alternatives →
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Hey everyone, English is not my native language. This post was polished with AI, but the content is mine. I run a small dev agency in Germany. Every week someone shares database credentials, API keys, or a .env file via Slack or email. Not because they don’t care: because there’s no frictionless alternative. Vault setups are heavy. Enterprise tools are expensive. I just needed: upload → share link → done. But encrypted before leaving the browser. So I built SecretDrop.dev. What it does Files encrypted client-side (AES-256-GCM, PBKDF2 600k iterations) Built entirely on WebCrypto No…
Feb 2026 · secretdrop.dev · its alternatives →
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Hi! I made this as a hackathon project, the result is really cool and works very well. All you need to do is connect with your Metamask wallet and start creating documents. It also has proof of autorship, so we know if you wrote the document, or you just copy/pasted from chatgpt. This could be useful for schools or something. Let me know what you think. Thanks!
2024 · zkpaper.com · its alternatives →
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Prove that you said things before anyone else
Jun 2026 · yousaidthat.org · its alternatives →
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Zero-Knowledge Proofs (ZKPs) let an untrusted proved show that computation was executed correctly without revealing the inputs to the verifier. However to prove anything, the computation first has to be expressed as a circuit: a system of polynomial equations (constraints) over a finite field. Circuits are the assembly language of zk and every constraint costs prover (and sometimes verifier) time, so production circuits are aggressively hand-optimized. Over the last months, we have been experimenting with writing formal specifications instead and letting LLMs produce the circuits: as long as…
Jul 2026 · zk.golf · its alternatives →
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CipherDrop▲18Share Secrets With Zero Trace. Zero Accounts. Zero Worry.
2025 · cipherdrop.app · its alternatives →
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A free, fun platform to learn about cryptography through solving challenges and cracking insecure code. Can you reach the top of the leaderboard?
2020 · cryptohack.org · its alternatives →
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hey folks! My book Real-World Cryptography was just released and is now shipping. I've been working on this thing for the last two years and a half, and the goal was to give a good overview of everything that can be classified as "real-world" about crypto. You'll find all the basics in the first half of the book, and the second half contains chapters on TLS, noise, PAKEs, post-quantum cryptography, zero-knowledge proofs, MPC, cryptocurrencies, FHE, etc. So it's a good pick if you're learning, but also if you've been in the field for a while and want an intro to some subfield you're…
2021 · its alternatives →
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This project has been kicking around in my head since I first heard about the webauthn PRF extension in early 2024. I've slowly chipped away at it since, and finally got things to a shareable state over the summer thanks to a very fun parental leave. Headed back to work tomorrow, so I figure there's no time like the present. tldr: A client-held encryption key derived during passkey authentication encrypts all sensitive user data prior to persistence so that only the user is able to decrypt and reuse that data on their device. This allows short-lived, privacy-preserving age proofs to be…
Aug 2026 · loginwithone.com · its alternatives →
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Hello. I made this project as an experiment in using key cryptography for user identity in a client server model, and for some future peer to peer projects that I am working on. I am looking for feedback, please let me know what you think. Also, Merry Christmas to HN! :-)
2022 · github.com · its alternatives →
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Crypto 101▲13An introductory course on cryptography for programmers
2014 · crypto101.io · its alternatives →
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Zerodrop▲2Open-source stealth URL toolkit to bypass censorship filters
2018 · eligrey.com · its alternatives →
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Find crypto airdrops before everyone else free, no paywall
May 2026 · 3alamiyweb3.com · its alternatives →
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ZK-powered vault for anonymous payouts and state snapshots.
Jan 2026 · its alternatives →
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