Get inspired by Noir.

Find a list of inspirational ideas to build with Noir, the universal language of zero-knowledge.

Applications Libraries Tooling

Applications

Finance

Compliance

AML

Prove the legitimacy of any funds without disclosing their origins, ensuring both compliance and privacy.

RESOURCES:

Proof-of-innocence

Privacy Pools

Graphite

Finance

Compliance

Tax Return

Prove net gains and losses from aggregated on-chain trading activities without exposing the specific transactions involved.

RESOURCES:

Noir Ethereum transaction proofs

Finance

Credit Score

Generate a credit score without disclosing personal on-chain or off-chain transactions and financial information.

RESOURCES:

Noir Ethereum transaction proofs

Game

Let Me Eat

Design an in-person game that conceals player statistics in ‘combats’ (e.g. the larger fish eats the smaller fish).

RESOURCES:

Let Me Eat inspiration

Game

RPG

Design a role-playing game featuring private on-chain mechanics like secret equipment traits and hidden character locations.

RESOURCES:

Noir Froglin

Game

Strategy

Design a turn-based / real-time strategy game uniquely utilizing private on-chain mechanics like fog of war.

RESOURCES:

Noir Tikan

Noir BattleZips

Identity

Authentication

Design an authentication scheme in Noir that conceals underlying passwords / signatures, enabling private logins to services.

RESOURCES:

Passport.js

Social

Glassdoor

Create a truly free workplace review platform where users can share their workplace experiences without revealing their identity.

RESOURCES:

Machine Learning

Design innovative machine learning applications with privacy and trustless verification.

RESOURCES:

Noir ML libraries

BRING YOUR OWN IDEA

Join us on the Noir Discord to brainstorm and refine it together.

Noir Discord Apply for a Grant

Libraries

Cryptography

ElGamal (Grumpkin)

Implement the homomorphic encryption scheme over the Grumpkin curve native to Noir’s default Barretenberg proving backend.

RESOURCES:

Noir ElGamal (BabyJubJub)

Noir ElGamal

Identity

Finance

Regex

Implement regular expression (regex) pattern matching in Noir, enabling proving and verification of text-based content.

RESOURCES:

Circom Regex

Identity

Finance

TLSNotary Verifier

Verify arbitrary web data attested by TLSNotary (e.g. bank balances) in Noir, enabling composability with Noir and by extension e.g. on-chain logic.

RESOURCES:

TLSNotary

Noir JSON Parser

Noir ChaCha20

Signature

Cryptography

Ed25519 Signature

Verify signatures signed over the ed25519 curve in Noir, enabling application composability with WebAuthn (e.g. iOS, Android) and Cosmos signatures.

RESOURCES:

Noir ed25519 curve ops

Circom ed25519

Signature

Cryptography

ECDSA (secp384r1) Signature

Verify signatures signed over the secp384r1 curve in Noir, enabling applications based on e.g. verifying national identification signatures (e.g. Estonia, Japan).

RESOURCES:

Solidity Ethstonia

Signature

Cryptography

PLUME

Integrate the PLUME nullifiable ECDSA signature scheme in Noir for apps that require data nullification, such as private voting systems.

RESOURCES:

PLUME blog

PLUME GitHub

Cryptography

AltBN254 Curve Operations

Implement AltBN254 elliptic curve operations in Noir, enabling verification of proofs from other SNARK systems, KZG commitments, and more.

RESOURCES:

Cryptography

BabyJubJub Curve Operations

Implement a library for operations over the BabyJubJub curve.

RESOURCES:

BabyJubJub Noir Specification

Noir BabyJubJub Struct

Signature

Cryptography

ECDSA (BabyJubJub) Signature

Verify signatures signed over the babyjubjub curve in Noir, enabling applications that requires specific signature compatibility.

RESOURCES:

Circom babyjubjub-ecdsa

Noir EdDSA (BabyJubJub)

Data Type

Linked List

Implement a data structure for expressing and working with data elements in linear sequential orders.

RESOURCES:

Rust LinkedList

Identity

Game

GPS

Prove users’ geographical located region without revealing the exact location, useful for proof-of-attendance, gaming, etc.

RESOURCES:

Signature

Cryptography

ECDSA (other NIST curves) Signature

Verify signatures signed over other NIST curves in Noir.

RESOURCES:

Signature

Cryptography

ECDSA (brainpool curves) Signature

Verify signatures signed over brainpool curves in Noir.

RESOURCES:

Cryptography

Performance Optimizations

Optimize existing Noir libraries' circuit sizes, hence proving times and memory footprints.

RESOURCES:

Awesome Noir

Cryptography

Homomorphic Encryption in ZK

Implement homomorphically encryption primitives in Noir to validate processes without exposing underlying data, useful for gaming, private ML, and more.

RESOURCES:

Cryptography

MPC in ZK

Implement Multi-Party Computation (MPC) operations in Noir, enabling succinct proofs and trustless verification of private computations.

RESOURCES:

Cryptography

Proving Backend Integration

Integrate Noir with proving systems – such as Groth16 and lattice-based options – to offer developers increased flexibility and a wider range of choices.

RESOURCES:

Noir Groth16 Backend

Noir Halo2 Backend

Noir Gnark Backend

BRING YOUR OWN IDEA

Join us on the Noir Discord to brainstorm and refine it together.

Noir Discord Apply for a Grant

Tooling

IDE

DevEx

Language Server Protocol

Add language server features and expand IDE utilities for Noir development.

RESOURCES:

Detailed inspirations

IDE

DevEx

Gate Profiling

When a developer highlights a block of code, automatically shows the number of backend gates for quick optimization insights.

RESOURCES:

Gate flamegraph

Opcode profiling

DevEx

Package Registry

Catalogs Noir libraries for developers to discover, search and download libraries for their projects.

RESOURCES:

crates.io

DevEx

Compilation Scripting

Dynamic compilation of Noir programs based on input sizes for optimizing proving speeds based on use cases and end user needs.

RESOURCES:

Forum discussion

vlayer's inspiration

IDE

DevEx

Static Program Analysis

Analyze Noir programs for potential vulnerabilities without running them for quick security insights.

RESOURCES:

Security

Malicious Witness Generator

Generate malicious witness for vulnerable circuits to create malicious proofs, illustrate compromised soundness of circuits.

RESOURCES:

IDE

DevEx

Compiler Explorer

Compile and display opcodes in a side-by-side interactive view with the Noir program.

RESOURCES:

Rust Godbolt