Client-Side Archive Extraction, MIME Resolution & Markdown Conversion
Inspect ZIP archives, look up standard MIME media types, and convert HTML documents to Markdown locally without transmitting any file data over the network.
1. Client-Side Archive Inspection & Extraction
Unpack ZIP archives, inspect central directory headers, and extract individual compressed entries directly in your browser. Archive processing runs entirely in client memory via standard binary TypedArray readers, preserving private files and proprietary packages with zero server uploads.
Review file listings, uncompressed sizes, compression ratios, and folder hierarchies before extracting selected files to your local disk.
2. MIME Types & HTTP Content-Type Header Resolution
Standardized under RFC 2045 and RFC 6838, Multipurpose Internet Mail Extensions (MIME) define how web browsers, HTTP clients, and cloud object stores interpret byte streams. Incorrect media types can trigger unintended file downloads or cause strict cross-origin security blocks.
Our interactive MIME reference allows engineers to search by file extension or media type string, verifying canonical IANA registrations and generating proper Content-Type headers for cloud storage buckets, web servers, and API responses.
3. HTML to Markdown Conversion
Convert raw HTML snippets, downloaded web pages, and rich text documents into clean, standards-compliant CommonMark and GitHub-Flavored Markdown. The local conversion parser accurately maps heading levels, bullet and numbered lists, code blocks, hyperlinks, blockquotes, and tables.
Because all parsing occurs inside your local browser JavaScript engine, sensitive documentation, draft content, and proprietary articles remain completely private.
Featured File Tools Utilities & Quick Launch
Frequently Asked Questions: File Tools
Never. Archive inspection and extraction operate entirely within your browser memory by decoding ZIP binary structures locally.
They map file extensions to canonical IANA media types, ensuring correct Content-Type headers for web servers, reverse proxies, and cloud object storage.
Yes. Headings, nested lists, code spans, hyperlinks, and tables are preserved and translated into clean, portable Markdown syntax.
Use our MIME type lookup tool to search by extension or content type, ensuring accurate headers for web servers and cloud buckets.