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Total: 59,028 Users, 80,448 Release Files
For OSS Distribution
In cooperation with organizations who are in support of open source software development and its use, OSDN provide a download environment of global scale covering all continents and a file-release environment for flexible upload.
For OSS Development
OSDN offer open source projects a full service lineup that includes source code repositories such as Git/Subversion/Mercurial/Bazaar, web-site hosting features, ticket system, web forums, mailing lists, together with a well-integrated and easy-to-use environment for web-based project management.

Download Ranking

MinGW - Minimalist GNU for Windows
MinGW: A native Windows port of the GNU Compiler Collection (GCC), with freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All of MinGW's software will execute on the 64bit Windows platforms.
CrystalDiskInfo
CrystalDiskInfo is a HDD/SSD utility software which supports S.M.A.R.T and a part of USB-HDD. Important Notice Both CrystalDiskInfo and CrystalDiskMark are open source software personally developed by me. Any software development demands huge amount of time and effort, and on top of that, new hardware devices are released one after another which becomes a necessity to purchase in order to support them. Therefore, this project needs more development funds. As to current status, this project is extremely short of funds and is in desperate need of your donations. If you want to contribute to supporting the continuance of this project, please make donations by Paypal . Please make the amount of each contribution $10 USD or more (in JPYen, 1000Yen or more) if possible. Your contributions will be deeply appreciated.
FFFTP
FFFTP is lightweight FTP client software. FFFTP has many useful feature such as directory mirroring, character encdoging conversion, Firewall and SOCK, one-time password support, and so on.
TortoiseSVN
TortoiseSVN is a Subversion (SVN) client, implemented as a windows shell extension. Which means it's available right where you need it: in the Windows file explorer. It's intuitive and easy to use, since it doesn't require the Subversion command line client to run. Simply the coolest Interface to (Sub)Version Control!
CrystalDiskMark
CrystalDiskMark is a disk benchmark software. Important Notice Both CrystalDiskInfo and CrystalDiskMark are open source software personally developed by me. Any software development demands huge amount of time and effort, and on top of that, new hardware devices are released one after another which becomes a necessity to purchase in order to support them. Therefore, this project needs more development funds. As to current status, this project is extremely short of funds and is in desperate need of your donations. If you want to contribute to supporting the continuance of this project, please make donations by Paypal . Please make the amount of each contribution $10 USD or more (in JPYen, 1000Yen or more) if possible. Your contributions will be deeply appreciated.

Active Projects

MinGW - Minimalist GNU for Windows
MinGW: A native Windows port of the GNU Compiler Collection (GCC), with freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All of MinGW's software will execute on the 64bit Windows platforms.
CrystalDiskInfo
CrystalDiskInfo is a HDD/SSD utility software which supports S.M.A.R.T and a part of USB-HDD. Important Notice Both CrystalDiskInfo and CrystalDiskMark are open source software personally developed by me. Any software development demands huge amount of time and effort, and on top of that, new hardware devices are released one after another which becomes a necessity to purchase in order to support them. Therefore, this project needs more development funds. As to current status, this project is extremely short of funds and is in desperate need of your donations. If you want to contribute to supporting the continuance of this project, please make donations by Paypal . Please make the amount of each contribution $10 USD or more (in JPYen, 1000Yen or more) if possible. Your contributions will be deeply appreciated.
FFFTP
FFFTP is lightweight FTP client software. FFFTP has many useful feature such as directory mirroring, character encdoging conversion, Firewall and SOCK, one-time password support, and so on.
変愚蛮怒
roguelikeゲームの一種、ZAngbandから派生した変種です。非常に多くの特徴 的な種族/職業から1つを選び、ダンジョンを探検して。最下層にいる混沌のサー ペントを倒す事を目指します。
TortoiseSVN
TortoiseSVN is a Subversion (SVN) client, implemented as a windows shell extension. Which means it's available right where you need it: in the Windows file explorer. It's intuitive and easy to use, since it doesn't require the Subversion command line client to run. Simply the coolest Interface to (Sub)Version Control!

New Releases

保守対応終了 - Ring 1.7 日本語版取扱説明書 - 一般プレビュー公開版
2019-02-16 15:43: No ChangeLog/ReleaseNote/Project Description written in this language. Please refer link bellow for other languages and/or other release informations.
pSync - Version 1.11
2019-02-15 14:36: No ChangeLog/ReleaseNote/Project Description written in this language. Please refer link bellow for other languages and/or other release informations.
core.db - 190215-Update.db
2019-02-15 04:38: Bytom Blockchain Protocol (hereinafter referred as Bytom) is an interactive protocol of multiple byteassets. Heterogeneous byte-assets (indigenous digital currency, digital assets) that operate in different forms on the Bytom Blockchain and atomic assets (warrants, securities, dividends, bonds, intelligence information, forecasting information and other information that exist in the physical world) can be registered, exchanged, gambled and engaged in other more complicated and contract-based interoperations via Bytom. The protocol connects the atomic world and the byteworld to promote the interaction and circulation of assets between the two worlds. Bytom adopts three-layer architecture: application layer, contract layer and data transmission layer. The application layer is friendly to mobile and other terminals and convenient for developers to develop asset management applications. The contract layer use genesis contract and control contracts for asset issuance and management, supporting scalable BUTXO of UTXO model at the bottom layer, optimizing EVM and using introspection mechanism to prevent deadlock in Turing complete. The data transmission layer adopts DLT technology to achieve asset issuance, spending, transfer and other operations. The consensus mechanism uses POW algorithm that are friendly to AI ASIC chips. Matrix and convolution calculation is introduced into the hashing process so that the miners can be used for AI hardware acceleration services, generating additional social benefits.
tools - 1.4
2019-02-14 12:49: This is modulable wiki clone written with Perl.This program is thinking flexibility and customize nature as important.
YANMAH2 〜season2〜 - final-2
2019-02-14 10:14: YANMAH2(やんまに:Yet ANother Mobile Accelerated Hatena Haiku)は、「はてなハイク」のコンテンツを携帯端末向けに小さく表示する PHP プログラムです。

Site announcement

Announcement Regarding New File Release Mirror Set Up in the Nairobi, Kenya
2019-01-17 06:36: We proudly announce the new mirror site that were set up in the Nairobi (Kenya), for OSDN's file release system. All the files that were released through the use of file release system of OSDN's projects and chambers are mirrored by mirror servers that are managed by organizations who are in cooperation with OSDN's open source activities, and users who want to download these files will get them from one of the mirror sites. The organization who manage the newly setup mirror servers are as follows. Liquid Telecom (Nairobi, Kenya) OSDN will continue to keep looking for new mirror servers around the world to further support the activities of global open source projects.
DSA SSH key authentication support will be discontinue on OSDN
2018-11-30 04:17: SSH DSA key support is not recommend and disabled per default since 2015 on openssh upstream release beacuase of weakness of the algorithm. So, We will stop to support of DSA key for OSDN ssh login. Date: 2018-12-31 (we will disable DSA key login in Jan. 2019) Affected services: Shell service login project SCM (git/svn/hg/bzr/cvs) access via SSH PersonalForge SCM (git/sv/hg) access via SSH https://osdn.net/account/editsshkeys.php You can check SSH keys you registered above url. If you have ssh-dss key, the key will not accept to use login for OSDN after Jan. 2019. You should use another typo of key.
Announcement Regarding New File Release Mirrors Set Up in the Hong Kong and Los Angeles
2018-11-13 07:06: We proudly announce the two new mirror sites that were set up in the Hong Kong and Los Angeles, for OSDN's file release system. All the files that were released through the use of file release system of OSDN's projects and chambers are mirrored by mirror servers that are managed by organizations who are in cooperation with OSDN's open source activities, and users who want to download these files will get them from one of the mirror sites. The organizations who manage the newly setup mirror servers are as follows. xTom Hong Kong Limited (Hong Kong, China) xTom.com Inc. (Los Angels, California, USA) OSDN will continue to keep looking for new mirror servers around the world to further support the activities of global open source projects.
Announcement Regarding New File Release Mirror Set Up in the Beijing, China
2018-09-26 07:45: We proudly announce the new mirror site that were set up in the Beijing (China), for OSDN's file release system. All the files that were released through the use of file release system of OSDN's projects and chambers are mirrored by mirror servers that are managed by organizations who are in cooperation with OSDN's open source activities, and users who want to download these files will get them from one of the mirror sites. The organization who manage the newly setup mirror servers are as follows. Tsinghua University TUNA Association (Beijing, China) OSDN will continue to keep looking for new mirror servers around the world to further support the activities of global open source projects.
New Functions Added to Forum Feature
2018-09-07 06:32: The following functions are added to the Forum Feature Now you can edit the message at the top of a thread afterward. Now you can use wiki syntax to post on a forum. You can also choose to keep the syntax that you’ve been using. For each forum, the settings can be set separately. The settings can be changed afterward. However, messages that were posted before the changes will keep the format of the previous settings and can not be changed afterward. (The changes added to the settings do not apply retroactively.) Link syntax for expressing forum/forum thread/forum message is put together on wiki. For further information, go to wiki help.