All tools · 📐 Format / Inspect
📄 MIME Type Lookup
Bidirectional MIME type lookup. Enter an extension (.pdf, .json, .webp) to get the official MIME type, or enter a MIME type (application/json, image/webp) to see matching extensions. Based on IANA registry.
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Examples
Common formats
Input
.jsonOutput
application/jsonImage
Input
.webpOutput
image/webpReverse
Input
text/csvOutput
.csvFrequently asked questions
When does MIME type matter?
HTTP Content-Type headers, file upload validation, email attachments, browser sniffing for download vs inline display.
My server sets the wrong MIME — why?
Often a missing or stale mime.types config. Nginx/Apache ship with a default list; new formats like .webp may need a manual entry.
About this tool
MIME Type Lookup runs entirely in your browser using standard Web APIs. No data is sent to any server. The source for this tool is in our public GitHub repository.
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- 🔗 URL Parser — Break a URL into scheme, host, port, path, query, fragment.
Why this tool
vs typical free web-tool sites
| 1vw | Typical free site | |
|---|---|---|
| Price | Free | Free |
| Signup required | No | Often (for premium features) |
| Ads inside the tool | No | Yes (banner + video) |
| Data sent to server | No (browser-only) | Yes (inputs analyzed for ads) |
| Total tools | 96 | Often <20 or scattered across sites |
| Bookmarkable URL per tool | Yes | Mixed |
| Loads in under 1s | Yes (static) | Often slow (ad tracking) |
| Multilingual | EN / ES / PT / FR / DE | Usually EN only |
| Open source | Yes | No |