Noir Developer

Develop Noir (.nr) codebases. Use when creating a project or writing code with Noir.

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Last updated: April 29, 2026

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Quick Start

Manual Installation

No automatic installation available. Please visit the source repository for installation instructions.

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Noir Developer

Workflow

Compile (
```
nargo compile
```
) Noir program into ACIR.
Generate witness (
```
nargo execute
```
or NoirJS execute) based on ACIR and user inputs.
Prove using ACIR and witness with the selected proving backend.
Verify proof with the selected proving backend.

Task Patterns

Environment

If the environment is unsupported by

nargo

(e.g. native Windows), guide the user to using GitHub Codespaces (https://noir-lang.org/docs/tooling/devcontainer#using-github-codespaces) or a supported setup (WSL, Docker, or VM).

Plan

Define private inputs, public inputs (if any), and public outputs (if any) for each Noir program.

Project Creation

When creating a Noir project, use

nargo new

nargo init

to scaffold it.

Compilation

Use

nargo

(not

noir_wasm

) for compilation; it is the maintained path.

Validation

Run

nargo test

to validate Noir implementations.

Proving Backend

Confirm the proving backend choice before implementation details. If the user selects Barretenberg, read

references/barretenberg.md

References

Run
```
nargo --help
```
for the full list of commands.
Read https://noir-lang.org/docs/ for language syntax, dependencies, and tooling.
Proving backends:
- For Barretenberg specifics, read
```
references/barretenberg.md
```
  .

Noir Developer

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Quick Start

Manual Installation

TEAR & SHARE

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Be Part of the 2,168+ Developer Community

Noir Developer

Workflow

Task Patterns

Environment

Plan

Project Creation

Compilation

Validation

Proving Backend

References

finishing-a-development-branch

test-driven-development

requesting-code-review

receiving-code-review

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