Crates.io Publish checklist — check cargo package before publishing

Reads Cargo.toml and lists every crates.io publish blocker before you run cargo publish - the version number you burn cannot be re-uploaded. Runs entirely in your browser — nothing is uploaded.

as of

Free here: Opens the Cargo.toml you are looking at and names every crates.io publish blocker in it, with the line number and the fix.. In the editor: Gates every Cargo.toml in the workspace at once and writes a dated pre-publish report you keep and attach to the release PR. — that part asks for a licence key.

Same engine as the VS Code extension, byte for byte.