broofa/mime

Health v2 · maintenance only

Adoption not part of the score

2355 stars · 321 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A dependency-free JavaScript/TypeScript library for MIME type information, mapping file extensions to MIME types and vice versa using mime-db data. It offers a compact API with full and lite builds and built-in TypeScript types.

Use cases

• look up the mime type for a file extension
• get the file extension for a content-type header
• serve correct Content-Type headers in an http server
• map uploaded filenames to mime types
• get all extensions for a mime type like image/jpeg
• use a lightweight mime lookup in a browser bundle

When to choose

• you need fast, dependency-free mime type lookup in Node, Deno, Bun, or the browser
• you want built-in TypeScript types and ESM support
• you need a compact lite build without unofficial x-/vnd-/prs. types

When to avoid

• your runtime lacks ES2020/ESM support (use mime@3 instead)
• you need magic-byte content sniffing rather than extension-based lookup
• you need to call define() on the default mime object

Facets

library · maturity stable

serialization web-development developer-tools files bun browser cross-platform mime-types file-extensions content-type esm typescript nodejs deno

Member repositories

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