仕様書

[66] 2022-11-01T17:34:41.000Z, 2025-05-11T13:11:44.590Z https://pkware.cachefly.net/webdocs/casestudies/APPNOTE.TXT
[15] MIME Sniffing Standard (2016-03-05 01:29:10 +09:00 版) https://mimesniff.spec.whatwg.org/#zip-based-type

ファイル形式

[45]

ZIPファイル

ファイル名の文字コード
ファイルの時刻
ZIPファイルの署名
META-INF/
__MACOSX/

[50] Open Packaging (OOXML) は ZIP 仕様で曖昧な部分を Open Packaging における規定として明確化しています。 >>49

[49] ECMA-376-new-merged.pdf, 2007-02-09T03:33:59.000Z, 2024-06-04T14:04:20.573Z http://web.mit.edu/~stevenj/www/ECMA-376-new-merged.pdf#page=255

extra field

[56] zipdetails/bin/zipdetails at main · pmqs/zipdetails · GitHub, 2025-05-25T06:24:01.000Z https://github.com/pmqs/zipdetails/blob/main/bin/zipdetails
[52] ZipArchive: Unicode Support: Using Non-English Characters in Filenames, Comments and Passwords, 2025-05-25T06:18:44.000Z https://www.artpol-software.com/ZipArchive/KB/0610051525.aspx#customExtra
[55] Xceed zip extra fields, 2025-05-25T06:23:11.000Z https://support.xceed.com/portal/en/community/topic/xceed-zip-extra-fields

ファイル名の文字コード

ファイル名

ファイル名の文字コード

[59] ZIP extraction containing backwards slashes \ in path names · Issue #1502 · aonez/Keka, 2025-11-22T13:54:06.000Z https://github.com/aonez/Keka/issues/1502

注釈

[68] ZIP 全体の注釈と各ファイルの注釈があります。

[69] ファイル名と同様に文字コードの問題があります。ファイル名の文字コード

[65] zip_file_set_comment · libzip, 2025-05-23T14:03:22.000Z, 2025-12-30T08:11:02.076Z https://libzip.org/documentation/zip_file_set_comment.html
[62] utf 8 - What encoding to use for Zip archive comments? - Stack Overflow, 2025-12-30T08:07:25.000Z https://stackoverflow.com/questions/16804134/what-encoding-to-use-for-zip-archive-comments
[64] encoding - Cannot set encoded comment for zip archive using sharpZipLib - Stack Overflow, 2025-12-30T08:10:05.000Z https://stackoverflow.com/questions/77963359/cannot-set-encoded-comment-for-zip-archive-using-sharpziplib
[63] zipdetails - display the internal structure of zip files, 2025-12-30T08:08:08.000Z https://docs.mojolicious.org/zipdetails#Filenames-Comments
[67] PHP: ZipArchive::setArchiveComment - Manual, 2025-12-30T06:18:02.000Z, 2025-12-30T08:12:10.702Z https://www.php.net/manual/ja/ziparchive.setarchivecomment.php

MIME 型

[33] ZIPを基にした型ZIP-based typeは、次のいずれかを満たすものです >>15。

[34] 構文解析可能MIME型であって、部分型が +zip で終わるもの
[35] 構文解析可能MIME型であって、MIME型部分が application/zip であるもの

[77] その他のもの:

application/x-zip-compressed
application/x-zip

[46]

JSON 形式の一覧データファイルがあります。

[47] data-web-defs/mime-types.txt at master · manakai/data-web-defs (2016-04-06 21:39:51 +09:00 版) https://github.com/manakai/data-web-defs/blob/master/doc/mime-types.txt
- [48] ドキュメント: data-web-defs/mime-types.json at master · manakai/data-web-defs (2016-04-06 21:39:29 +09:00 版) https://github.com/manakai/data-web-defs/blob/master/data/mime-types.json

[82] 特定の ZIP に基づく形式のもの:

*/*+zip
application/java-archive
application/vnd.openxmlformats-officedocument.wordprocessingml.document
application/vnd.openxmlformats-officedocument.presentationml.presentation
application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
application/vnd.oasis.opendocument.presentation
application/vnd.oasis.opendocument.spreadsheet
application/vnd.oasis.opendocument.text
application/x-xpinstall
application/widget

[53] Διακηρύξεις μίσθωσης και εκμίσθωσης ακινήτων. - Διεύθυνση Διοικητικών Υπηρεσιών - Ελληνική Δημοκρατία - Περιφέρεια Αττικής, 2025-05-23T15:08:16.000Z https://opendata.attica.gov.gr/content/genikh-dieythynsh-eswterikhs-leitoyrgias/d-nsh-dioikhtikwn-yphresiwn/155-diakhrykseis?preview=263-diakhrykseis-2020-zip

[54] >>53 なぜか

Mime type application/vnd.rar

となっているが実際のファイルの HTTP Content-Type は application/zip。ファイルそのものもZIP。

`zip:` URL scheme

[16] 構文: zip:// zip-file-uri[! absolute-path]

[17] 例:

zip:http://somehost/downloads/somefile.zip
jar:zip:outer.zip!/nested.jar!/somedir
jar:zip:outer.zip!/nested.jar!/some%21dir

[18] Commons VFS - Supported File Systems http://jakarta.apache.org/commons/sandbox/vfs/filesystems.html#Zip%20and%20Jar

応用

[14]

JAR
XPI
.crx
Widgets
OCF
Open Document Format
Open Packaging Conventions
APK
ASiC

ZIP ファイルそのものの処理に関する規定を持つもの

[78] Packaged Web Apps (Widgets) - Packaging and XML Configuration (Second Edition), 2016-08-18T15:34:32.000Z, 2026-01-04T02:29:06.066Z https://w3c.github.io/packaged-webapps/packaging/#steps-for-processing-a-widget-package

[79] ECMA-376 - Ecma International, 2026-01-04T02:47:38.000Z https://ecma-international.org/publications-and-standards/standards/ecma-376/ part 2

[80] EPUB 3.4, 2025-12-21T10:14:03.000Z, 2026-01-04T03:04:04.753Z https://w3c.github.io/epub-specs/epub34/authoring/#sec-container-zip

[81] Open Document Format for Office Applications (OpenDocument) Version 1.4. Part 2: Packages, 2025-10-06T17:00:00.000Z, 2026-01-04T03:09:16.093Z https://docs.oasis-open.org/office/OpenDocument/os/part2-packages/OpenDocument-v1.4-os-part2-packages.html

zipでくれ

[44] 俺の彼女と幼なじみが修羅場すぎる全13話一挙放送 - 2023/6/14(水) 19:00開始 - ニコニコ生放送 (2023-06-19 11:06:22 +09:00) https://live.nicovideo.jp/watch/lv341136348

実利用例

ファイル名に関して興味深いものはファイル名の文字コード

[57] Download and installation help - CNET Download, 2025-11-03T07:39:22.000Z https://download.cnet.com/support/shakti-office-english-hindi/3000-2079_4-10803367.html
- [58] Explzh では圧縮ファイルではないとして開けないファイル。 Windows Explorer では開ける。
[60] 2025-12-30T08:01:59.700Z https://zenpo-huchui.com/download/starchaser_win.zip
- [61] ファイル全体の注釈に生成ソフトウェア情報が入っている。 ASCII。
[75] 2026-01-01T07:50:29.600Z https://git.zx2c4.com/linux-dev/snapshot/linux-dev-cd83f6b194e95fa616dd3157ae7a63d4713b6670.zip
- [76] Content-Type が application/x-zip; charset=UTF-8

人工的な利用例

[70] rubyzip/test/data at main · rubyzip/rubyzip · GitHub, 2025-12-31T09:30:56.000Z https://github.com/rubyzip/rubyzip/tree/main/test/data
- [71] 2026-01-01T00:55:16.700Z https://raw.githubusercontent.com/rubyzip/rubyzip/refs/heads/main/test/data/max_length_file_comment.zip
  - [72] Perlモジュール Archive::Zip ではエラーになって開けません。 2026-01-01T00:55:38.00Z
  - [73] Explzh では開けます。 2026-01-01T00:55:46.300Z
[74] GitHub - tuzovakaoff/zip_path_traversal: Path traversal with zip archive, 2026-01-01T00:57:20.000Z https://github.com/tuzovakaoff/zip_path_traversal

歴史

[1] Application Note Archives - PKWARE, Inc. (Justin Nichols 著, 2008-11-30 18:37:52 +09:00 版) http://www.pkware.com/support/application-note-archives

[51] Microsoft Word - A-100-5.doc - a_100_5.pdf, 2024-08-30T08:17:33.000Z https://web.archive.org/web/20060927005504/http://www.atsc.org/standards/a_100_5.pdf

[2] Data.driven() » Widgets 1.0 (2008-11-30 18:37:15 +09:00 版) http://datadriven.com.au/tag/widgets-10/

[3] Zip files and Encoding - I hate you. | Data.driven() (2009-07-05 11:55:12 +09:00 版) http://datadriven.com.au/2008/12/08/zip-files-and-encoding-i-hate-you/

[4] [dsdl-discuss] Basic ZIP format is "public domain" from rjelliffe_at_allette.com.au on 2010-03-26 (dsdl-discuss.2010-03) (rjelliffe_at_allette.com.au (rjelliffe_at_allette.com.au) 著, 2010-03-27 00:03:02 +09:00 版) http://lists.dsdl.org/dsdl-discuss/2010-03/0024.html

[5] ZIP (ファイルフォーマット) - Wikipedia ( (2012-11-16 23:51:31 +09:00 版)) http://ja.wikipedia.org/wiki/ZIP_(%E3%83%95%E3%82%A1%E3%82%A4%E3%83%AB%E3%83%95%E3%82%A9%E3%83%BC%E3%83%9E%E3%83%83%E3%83%88)

[6] Zip - WHATWG Wiki ( (2013-08-31 03:47:21 +09:00 版)) http://wiki.whatwg.org/wiki/Zip

[7] ( (2012-11-08 06:46:45 +09:00 版)) http://www.itscj.ipsj.or.jp/sc34/open/1855.pdf

[8] RFC 6839 - Additional Media Type Structured Syntax Suffixes ( (2013-06-28 00:23:48 +09:00 版)) http://tools.ietf.org/html/rfc6839#section-3.6

[9] OASIS Open Document Format for Office Applications (OpenDocument) Version 1.2 - Part 3: Packages (2011-09-29 13:00:00 +09:00 版) http://docs.oasis-open.org/office/v1.2/os/OpenDocument-v1.2-os-part3.html#a2_2_1OpenDocument_Package

[10] (2014-04-08 22:35:48 +09:00 版) https://www.khronos.org/files/collada_spec_1_5.pdf

[11] (2011-07-16 05:29:35 +09:00 版) https://www.iana.org/assignments/media-types/application/zip

This filetype is not recommended for normal use, since Content-Type
information for the files contained within the archive are not known.
Instead multipart/mixed should be used and each file should have it's
own Content-Type.

[12] Packaged Web Apps (Widgets) - Packaging and XML Configuration (Second Edition) (2015-01-27 11:24:04 +09:00 版) http://w3c.github.io/packaged-webapps/packaging/

[13] RFC 6839 - Additional Media Type Structured Syntax Suffixes (2013-06-28 00:23:48 +09:00 版) http://tools.ietf.org/html/rfc6839#section-3.6

[19] IRC logs: freenode / #whatwg / 20131006 ( (2013-10-11 20:32:09 +09:00 版)) http://krijnhoetmer.nl/irc-logs/whatwg/20131006#l-537

[20] Remove zip archives (for now). · e5c1f60 · whatwg/fetch ( (2013-10-30 06:19:44 +09:00 版)) https://github.com/whatwg/fetch/commit/e5c1f60bce08f571b3da946560eeb3012776ab87

[21] packages.md ( (2014-01-08 11:35:46 +09:00 版)) https://gist.github.com/wycats/220039304b053b3eedd0

[22] IRC logs: freenode / #whatwg / 20140106 ( (2014-01-07 23:19:33 +09:00 版)) http://krijnhoetmer.nl/irc-logs/whatwg/20140106#l-347

[23] [dsdl-discuss] Re: ISO/IEC 21320-1 - CD ballot from Jirka Kosek on 2013-09-13 (dsdl-discuss.2013-09) ( (Jirka Kosek (jirka_at_kosek.cz) 著, 2013-09-15 08:33:01 +09:00 版)) http://lists.dsdl.org/dsdl-discuss/2013-09/0000.html

[24] Generic syntax ( (Anne van Kesteren 著, 2013-08-27 23:15:22 +09:00 版)) http://lists.w3.org/Archives/Public/public-media-fragment/2013Aug/0001.html

[25] 64286 – web archive save/view support (KDE/Konqueror-like .war, .zip, .tgz, .tar.gz, .tar.bz2, tb2, .tbz2, .jar) (2015-05-07 23:03:12 +09:00 版) https://bugzilla.mozilla.org/show_bug.cgi?id=64286

[26] zip URLs ( (2013-08-26 12:08:58 +09:00 版)) https://gist.github.com/annevk/6174119

[27] [whatwg] Zip archives as first-class citizens ( (2013-08-28 13:32:53 +09:00 版)) http://lists.whatwg.org/pipermail/whatwg-whatwg.org/2013-August/040599.html

[28] MoPad: zipurls ( (2013-08-29 14:06:47 +09:00 版)) https://etherpad.mozilla.org/zipurls

[29] IRC logs: freenode / #whatwg / 20130823 ( (2013-08-26 12:15:51 +09:00 版)) http://krijnhoetmer.nl/irc-logs/whatwg/20130823#l-719

[30] IRC logs: freenode / #whatwg / 20130829 ( (2013-09-05 09:02:52 +09:00 版)) http://krijnhoetmer.nl/irc-logs/whatwg/20130829

[31] URL format for linking to resources inside ZIP files · Issue #137 · dataprotocols/dataprotocols (2015-06-25 15:43:43 +09:00 版) https://github.com/dataprotocols/dataprotocols/issues/137

[32] 技術/歴史/zip,gzip,zlib,bzip2 - Glamenv-Septzen.net (2016-02-04 22:31:03 +09:00 版) http://www.glamenv-septzen.net/view/495

[38] Define a new MIME type model, parser, and serializer (annevk著, 2017-12-07 22:11:12 +09:00) https://github.com/whatwg/mimesniff/commit/cc81ec48288944562c4554069da1d74a71e199fb

[39] Editorial: tweak MIME type group definitions (domenic著, 2018-02-06 06:35:09 +09:00) https://github.com/whatwg/mimesniff/commit/452938939d1d88e3c74f59f41f14579249130437

[40] Editorial: tweak MIME type group definitions by domenic · Pull Request #59 · whatwg/mimesniff (2018-02-17 18:28:01 +09:00) https://github.com/whatwg/mimesniff/pull/59

[41] IETF HTML5 Meeting March 2009 - W3C Wiki (2018-04-21 13:28:11 +09:00) https://www.w3.org/wiki/IETF_HTML5_Meeting_March_2009

[42] zipファイルをお送り頂いた場合の手数料について | 株式会社サムライズム (2020年4月1日に yusuke が投稿 2020-04-03 13:08:22 +09:00) https://samuraism.com/2020/04/01/11319

[43] 霞が関でパスワード付きzipファイルを廃止へ平井デジタル相 - ITmedia NEWS (2020-11-19T02:05:06.000Z) https://www.itmedia.co.jp/news/articles/2011/17/news150.html

仕様書