What Rust editions are supported?

The generator supports all three stable editions: 2015, 2018, and 2021. For new projects, 2021 is recommended as it is the current default.

How do I specify a version constraint?

Enter any valid semver requirement: "1.0", "^1.2", ">=0.5, <2.0", or "*". If you leave the version blank it defaults to "*", which Cargo resolves to the latest compatible version.

What is the difference between dependencies and dev-dependencies?

[dependencies] are compiled into your final artifact. [dev-dependencies] are only available during cargo test and cargo bench — they are never shipped with your crate.

Are optional features included automatically?

Only if you fill in the Features section. Each feature maps to a list of crates that are enabled when that feature is activated. Leave it empty and the section is omitted from the output.

Is the generated TOML valid?

Yes — the output follows the official Cargo manifest format. Paste it directly into your project root as Cargo.toml and run cargo build to verify.

Cargo.toml Generator

Name: Cargo.toml Generator
Availability: InStock
Author: Nham Vu

Fill in your Rust project details and get a ready-to-paste Cargo.toml in seconds.

Package

Package name *

Version

Edition

Authors (comma-separated)

Description

License

Dependencies

Dev-Dependencies

Features (optional)

Cargo.toml

Fill in the form and click Generate Cargo.toml

Summary

Fill in your Rust project details and get a ready-to-paste Cargo.toml in seconds.

How it works

Enter your package name, version, and Rust edition (2015, 2018, or 2021).
Optionally add author names and a short description.
Add dependencies one by one — specify the crate name and semver version.
Add dev-dependencies (e.g. test helpers) separately if needed.
Define optional features as comma-separated crate lists.
Click "Generate" to produce the Cargo.toml, then copy it with one click.

Use cases

Bootstrap a new Rust library or binary crate quickly.
Double-check the correct Cargo.toml syntax before starting a project.
Teach Rust beginners the structure of a package manifest.
Generate a clean manifest template before pasting into an IDE.
Prototype dependency lists without opening a terminal.
Produce a minimal reproducible example manifest for bug reports.

Frequently Asked Questions

Last updated: 2026-06-09 · Reviewed by Nham Vu