About this utility
How to use Cargo Version Requirement Explainer
Explain Cargo-compatible SemVer requirements and test a Rust crate version.
What to provide
Supports Cargo caret defaults, explicit caret/tilde, wildcards, and comma-separated comparison requirements.
- Paste, type, or drag and drop a supported text file into the input area.
- Choose the options that match your intended result.
- Select “Run tool” or press Ctrl/Command + Enter, then copy, download, or move the result back into the first input for another pass.
What the result means
Normalized lower/upper constraints, tested-version result, and Cargo-specific compatibility notes.
Privacy and safety
This utility is loaded as browser code and processes your input only in this tab. OmniCastConverter has no upload endpoint and never stores your content, filenames, tokens, or secrets. Generated markup and code are shown as inert text and are never executed.
Limitations
- Git/path dependencies, registry selection, feature resolution, yanked releases, and Cargo.lock selection are outside version-requirement grammar.
Try the included example
Select “Load example” at any time to restore this tested sample.
1.2.3