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mrmime
Advanced tools
Readme
Lightweight – 2.8kB gzip
Only includes standard mime types; all experimental and vendor-specific mimetypes removed.
Performant
All lookups are O(1) with minimal processing.
Comprehensive Dictionary
Generated from mime-db
, which aggregates the IANA, NGINX, and Apache datasets.
Customizable
Exposes the mimes
dictionary for easy additions or overrides.
Supports Native ESM and Deno
Ships with CommonJS and ESM support!
$ npm install --save mrmime
import { lookup, mimes } from 'mrmime';
// Get a MIME type
// ---
lookup('txt'); //=> "text/plain"
lookup('.txt'); //=> "text/plain"
lookup('a.txt'); //=> "text/plain"
// Unknown extension
// ---
lookup('.xyz'); //=> undefined
// Add extension to dictionary
// ---
mimes['xyz'] = 'hello/world';
lookup('xyz'); //=> "hello/world"
Returns: string
or undefined
Type: string
The extension or filename to lookup.
Important:
- Any
input
value is cast to string, lowercased, and trimmed.- If a filename or filepath is provided, only the extension will be used.
Running on Node v16.8.0
Load times:
mrmime 0.963ms
mime/lite 3.281ms
mime 6.751ms
Benchmark :: plain ("ext")
mime x 598,849 ops/sec ±0.28% (94 runs sampled)
mime/lite x 536,643 ops/sec ±0.11% (97 runs sampled)
mrmime x 835,885 ops/sec ±0.20% (97 runs sampled)
Benchmark :: leading (".ext")
mime x 368,656 ops/sec ±0.19% (99 runs sampled)
mime/lite x 368,318 ops/sec ±0.13% (97 runs sampled)
mrmime x 533,643 ops/sec ±0.10% (96 runs sampled)
Benchmark :: filename ("file.ext")
mime x 326,907 ops/sec ±0.17% (95 runs sampled)
mime/lite x 327,479 ops/sec ±0.12% (98 runs sampled)
mrmime x 512,823 ops/sec ±0.12% (99 runs sampled)
Of course, a thank-you to mime
serving the community all these years & for being a all-encompassing MIME type library. I've only ever needed lookup/getType
functionality – and now ESM support – so mrmime
can only ever support 1/3 of what mime
offers, at best.
This would not be possible without the team behind mime-db
, who have painstakingly maintained an amazing database for 7+ years.
Artwork created by mintinol, which I found here.
Finally, thanks to Tim Branyen for donating the package name :)
MIT © Luke Edwards
FAQs
A tiny (2.8kB) and fast utility for getting a MIME type from an extension or filename
The npm package mrmime receives a total of 7,535,915 weekly downloads. As such, mrmime popularity was classified as popular.
We found that mrmime demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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