pages-articles.xml.bz2 – Current revisions only, no talk or user pages. (This is probably the one you want. The size of the 13 February 2014 dump is approximately 9.85 GB compressed, 44 GB uncompressed).
As these files are quite large, please consider using a BitTorrent download to reduce the load on our servers.
Additionally, there are numerous benefits using BitTorrent over a HTTP/FTP download. In an HTTP/FTP download, there is no way to compute the checksum of a file during downloading. Because of that limitation, data corruption is harder to prevent when downloading a large file. With BitTorrent downloads, the checksum of each block/chunk is computed using a SHA-1 hash during the download. If the computed hash doesn't match with the stored hash in the *.torrent file, that particular block/chunk is avoided. As a result, a BitTorrent download is generally more secure against data corruption than a regular HTTP/FTP download.
pages-meta-current.xml.bz2 – Current revisions only, all pages (including talk)
abstract.xml.gz – page abstracts
all-titles-in-ns0.gz – Article titles only (with redirects)
SQL files for the pages and links are also available
All revisions, all pages: These files expand to multiple terabytes of text. Please only download these if you know you can cope with this quantity of data. Go to Latest Dumps and look out for all the files that have 'pages-meta-history' in their name.
To download a subset of the database in XML format, such as a specific category or a list of articles see: Special:Export, usage of which is described at Help:Export.
Database backend software: You want to download MySQL.
Image dumps: See below.
In the dumps.wikimedia.org directory you will find the latest SQL and XML dumps for the projects, not just English. For example, (others exist, just select the appropriate language code and the appropriate project):
Some other directories (e.g. simple, nostalgia) exist, with the same structure.
Where are the uploaded files (image, audio, video, etc., files)?
Images and other uploaded media are available from mirrors in addition to being served directly from Wikimedia servers. Bulk download is currently (as of September 2013) available from mirrors but not offered directly from Wikimedia servers. See the list of current mirrors. You should rsync from the mirror, then fill in the missing images from upload.wikimedia.org; when downloading from upload.wikimedia.org you should throttle yourself to 1 cache miss per second (you can check headers on a response to see if was a hit or miss and then back off when you get a miss) and you shouldn't use more than one or two simultaneous HTTP connections. In any case, make sure you have an accurate user agent string with contact info (email address) so ops can contact you if there's an issue. You should be getting checksums from the mediawiki API and verifying them. The API Etiquette page contains some guidelines, although not all of them apply (for example, because upload.wikimedia.org isn't MediaWiki, there is no maxlag parameter).
Unlike most article text, images are not necessarily licensed under the GFDL & CC-BY-SA-3.0. They may be under one of many free licenses, in the public domain, believed to be fair use, or even copyright infringements (which should be deleted). In particular, use of fair use images outside the context of Wikipedia or similar works may be illegal. Images under most licenses require a credit, and possibly other attached copyright information. This information is included in image description pages, which are part of the text dumps available from dumps.wikimedia.org. In conclusion, download these images at your own risk (Legal)
Dealing with compressed files
Compressed dump files are significantly compressed, thus after uncompressed will take up large amounts of drive space. The following are programs that can be used to uncompress bzip2 (.bz2) and .7z files.
Some BSD systems ship with the command-line bzip2 tool as part of the operating system. Others, such as OpenBSD, provide it as a package which must first be installed.
Some older versions of bzip2 may not be able to handle files larger than 2 GB, so make sure you have the latest version if you experience any problems.
Some older archives are compressed with gzip, which is compatible with PKZIP (the most common Windows format).
Dealing with large files
As files grow in size, so does the likelihood they will exceed some limitation of a computing device. Each operating system, file system, hard storage device, and software (application) has a maximum file size limit. Each one of these will likely have a different maximum file size limit, but the lowest limit of all of them will become the file size limit for a storage device.
The older the software in a computing device, the more likely it will have a 2 GB file limit somewhere in the system. This is due to older software using 32-bit integers for file indexing, which limits file sizes to 2^31 bytes (2 GB) (for signed integers), or 2^32 (4 GB) (for unsigned integers). Older Cprogramming libraries have this 2 or 4 GB limitation, but the newer file libraries have been converted to 64-bit integers thus supporting file sizes up to 2^63 or 2^64 bytes (8 or 16 EB).
Before starting a download of a large file, check the storage device to ensure its file system can support files of such a large size, and check the amount of free space to ensure that it can hold the downloaded file.
File system limits
There are two limits for a file system: the file system size limit, and the file size limit. In general, since the file size limit is less than the file system limit, the larger file system limits are a moot point. A large percentage of users assume they can create files up to the size of their storage device, but are wrong in their assumption. For example, a 16 GB storage device formatted as FAT32 file system has a file limit of 4 GB for any single file. The following is a list of the most common file systems, and see Comparison of file systems for additional detailed information.
Each operating system has internal file system limits for file size and drive size, which is independent of the file system or physical media. If the operating system has any limits lower than the file system or physical media, then the O/S limits will be the real limit.
All devices support HFS+ for internal storage. No devices have external storage slots.
Detect corrupted files
It is a good idea to check the MD5 sums (provided in a file in the download directory) to make sure your download was complete and accurate. You can check this by running the "md5sum" command on the files you downloaded. Given how large the files are, this may take some time to calculate. Due to the technical details of how files are stored, file sizes may be reported differently on different filesystems, and so are not necessarily reliable. Also, you may have experienced corruption during the download, though this is unlikely.
Reformatting external USB drives
If you plan to download Wikipedia Dump files to one computer and use an external USB Flash Drive or Hard Drive to copy them to other computers, then you will run into the 4 GB FAT32 file size limitation issue. To work around this issue, reformat the >4 GB USB Drive to a file system that supports larger file sizes. If you are working exclusively with Windows XP/Vista/7 computers, then reformat your USB Drive to NTFS file system. Windows ext2 driver
Linux and Unix
If you seem to be hitting the 2 GB limit, try using wget version 1.10 or greater, cURL version 7.11.1-1 or greater, or a recent version of lynx (using -dump). Also, you can resume downloads (for example wget -c).
Suppose you are building a piece of software that at certain points displays information that came from Wikipedia. If you want your program to display the information in a different way than can be seen in the live version, you'll probably need the wikicode that is used to enter it, instead of the finished HTML.
Also if you want to get all of the data, you'll probably want to transfer it in the most efficient way that's possible. The wikipedia.org servers need to do quite a bit of work to convert the wikicode into HTML. That's time consuming both for you and for the wikipedia.org servers, so simply spidering all pages is not the way to go.
Please be aware that live mirrors of Wikipedia that are dynamically loaded from the Wikimedia servers are prohibited. Please see Wikipedia:Mirrors and forks.
Please do not use a web crawler
Please do not use a web crawler to download large numbers of articles. Aggressive crawling of the server can cause a dramatic slow-down of Wikipedia.
Sample blocked crawler email
IP address nnn.nnn.nnn.nnn was retrieving up to 50 pages per second from wikipedia.org addresses. Robots.txt has a rate limit of one per second set using the Crawl-delay setting. Please respect that setting. If you must exceed it a little, do so only during the least busy times shown in our site load graphs at stats.wikimedia.org/EN/ChartsWikipediaZZ.htm. It's worth noting that to crawl the whole site at one hit per second will take several weeks. The originating IP is now blocked or will be shortly. Please contact us if you want it unblocked. Please don't try to circumvent it – we'll just block your whole IP range.
If you want information on how to get our content more efficiently, we offer a variety of methods, including weekly database dumps which you can load into MySQL and crawl locally at any rate you find convenient. Tools are also available which will do that for you as often as you like once you have the infrastructure in place.
Instead of an email reply you may prefer to visit #mediawikiconnect at irc.freenode.net to discuss your options with our team.
Note that the robots.txt currently has a commented out Crawl-delay:
## *at least* 1 second please. preferably more :D## we're disabling this experimentally 11-09-2006#Crawl-delay: 1
Please be sure to use an intelligent non-zero delay regardless.
Doing Hadoop MapReduce on the Wikipedia current database dump
You can do Hadoop MapReduce queries on the current database dump, but you will need an extension to the InputRecordFormat to have each <page> </page> be a single mapper input. A working set of java methods (jobControl, mapper, reducer, and XmlInputRecordFormat) is available at Hadoop on the Wikipedia
Doing SQL queries on the current database dump
You can do SQL queries on the current database dump (as a replacement for the disabled Special:Asksql page).
Static HTML tree dumps for mirroring or CD distribution
MediaWiki 1.5 includes routines to dump a wiki to HTML, rendering the HTML with the same parser used on a live wiki. As the following page states, putting one of these dumps on the web unmodified will constitute a trademark violation. They are intended for private viewing in an intranet or desktop installation.
If you want to draft a traditional website in Mediawiki and dump it to HTML format, you might want to try mw2html by User:Connelly.
The wikiviewer plugin for rockbox permits viewing converted Wikipedia dumps on many Rockbox devices. It needs a custom build and conversion of the wiki dumps using the instructions available at http://www.rockbox.org/tracker/4755 .The conversion recompresses the file and splits it into 1 GB files and an index file which all need to be in the same folder on the device or micro sd card.
The static version of Wikipedia created by Wikimedia: http://static.wikipedia.org/ Feb. 11, 2013 - This is apparently offline now. There was no content.
Dynamic HTML generation from a local XML database dump
Instead of converting a database dump file to many pieces of static HTML, one can also use a dynamic HTML generator. Browsing a wiki page is just like browsing a Wiki site, but the content is fetched and converted from a local dump file upon request from the browser.
XOWA is a free, open-source application that lets you download Wikipedia to your computer. Access all of Wikipedia offline -- without an internet connection! It is currently in the beta stage of development, but is functional. It is available for download here.
Displays all articles from Wikipedia without an internet connection.
Download a complete, recent copy of English Wikipedia.
Display 4.4+ million articles in full HTML formatting.
Show images within an article. Access 3.7+ million images using the offline image databases.
Works with any Wikimedia wiki, including Wikipedia, Wiktionary, Wikisource, Wikiquote, Wikivoyage (also some non-wmf dumps)
Works with any non-English language wiki such as French Wikipedia, German Wikisource, Dutch Wikivoyage, etc.
Works with other specialized wikis such as Wikidata, Wikimedia Commons, Wikispecies, or any other MediaWiki generated dump
Set up over 660+ other wikis including:
Non-English wikis, such as French Wiktionary, German Wikisource, Dutch Wikivoyage
... and many more!
Update your wiki whenever you want, using Wikimedia's database backups.
Navigate between offline wikis. Click on "Look up this word in Wiktionary" and instantly view the page in Wiktionary.
Edit articles to remove vandalism or errors.
Install to a flash memory card for portability to other machines.
Run on Windows, Linux and Mac OS X.
View the HTML for any wiki page.
Search for any page by title using a Wikipedia-like Search box.
Browse pages by alphabetical order using Special:AllPages.
Find a word on a page.
Access a history of viewed pages.
Bookmark your favorite pages.
Downloads images and other files on demand (when connected to the internet)
Sets up Simple Wikipedia in less than 5 minutes
Can be customized at many levels: from keyboard shortcuts to HTML layouts to internal options
Offline wikipedia reader
(for Mac OS X, GNU/Linux, FreeBSD/OpenBSD/NetBSD, and other Unices)
Search produces multiple possible articles: you can choose amongst them
LaTeX based rendering for mathematical formulae
Minimal space requirements: the original .bz2 file plus the index
Very fast installation (a matter of hours) compared to loading the dump into MySQL
WikiFilter is a program which allows you to browse over 100 dump files without visiting a Wiki site.
WikiFilter system requirements
A recent Windows version (WinXP is fine; Win98 and WinME won't work because they don't have NTFS support)
A fair bit of hard drive space (To install you will need about 12 - 15 Gigabytes; afterwards you will only need about 10 Gigabytes)
How to set up WikiFilter
Start downloading a Wikipedia database dump file such as an English Wikipedia dump. It is best to use a download manager such as GetRight so you can resume downloading the file even if your computer crashes or is shut down during the download.
Download XAMPPLITE from  (you must get the 1.5.0 version for it to work). Make sure to pick the file whose filename ends with .exe
WikiTaxi is an offline-reader for wikis in MediaWiki format. It enables users to search and browse popular wikis like Wikipedia, Wikiquote, or WikiNews, without being connected to the Internet. WikiTaxi works well with different languages like English, German, Turkish, and others but has a problem with right-to-left language scripts. Doesn't allow to display images though.
WikiTaxi system requirements
Any Windows version starting from Windows 95 or later. Large File support (greater than 4 GB) for the huge wikis (English only at the time of this writing).
16 MB RAM minimum for the WikiTaxi reader, 128 MB recommended for the importer (more for speed).
Storage space for the WikiTaxi database. This requires about 11.7 GiB for the English Wikipedia (as of 5 April 2011), 2 GB for German, less for other Wikis. These figures are likely to grow in the future.
Download WikiTaxi and extract to an empty folder. No installation is otherwise required.
Download the XML database dump (*.xml.bz2) of your favorite wiki.
Run WikiTaxi_Importer.exe to import the database dump into a WikiTaxi database. The importer takes care to uncompress the dump as it imports, so make sure to save your drive space and do not uncompress beforehand.
When the import is finished, start up WikiTaxi.exe and open the generated database file. You can start searching, browsing, and reading immediately.
After a successful import, the XML dump file is no longer needed and can be deleted to reclaim disk space.
To update an offline Wiki for WikiTaxi, download and import a more recent database dump.
For WikiTaxi reading, only two files are required: WikiTaxi.exe and the .taxi database. Copy them to any storage device (memory stick or memory card) or burn them to a CD or DVD and take your Wikipedia with you wherever you go!
BzReader and MzReader (for Windows)
BzReader is an offline Wikipedia reader with fast search capabilities. It renders the Wiki text into HTML and doesn't need to decompress the database. Requires Microsoft .NET framework 2.0.
MzReader by Mun206 works with (though is not affiliated with) BzReader, and allows further rendering of wikicode into better HTML, including an interpretation of the monobook skin. It aims to make pages more readable. Requires Microsoft Visual Basic 6.0 Runtime, which is not supplied with the download. Also requires Inet Control and Internet Controls (Internet Explorer 6 ActiveX), which are packaged with the download.
Offline Wikipedia database in EPWING dictionary format, which is common and an out-dated JIS-standard in Japan, can be read including thumbnail images and tables with some rendering limitations, on any systems where a reader is available (Boookends). There are many free and commercial readers for Windows/Mobile, MacOSX/iOS (Mac, iPhone, iPad), Android, Unix/Linux/BSD, DOS, and Java-based browser applications (EPWING Viewers).
WP-MIRROR is a free utility for mirroring any desired set of WMF wikis. That is, it builds a wiki farm that the user can browse locally. WP-MIRROR builds a complete mirror with original size media files. WP-MIRROR is available for download.