• OpenSSL is actually several things in one: a crypto library (see my article in MISC), an SSL stack and a crypto tool.
• GPG is the open source alternative to PGP (Pretty Good Privacy). It's used to encrypt/decrypt/sign/verify documents.
• Enigmail is Thunderbird's GPG plugin. It automatically encrypts/decrypts/signs/verifies your emails.
• DokuWiki is this wiki ! I like it very much :)
• DotClear is a blog. It's quite good too.
• Joomla is a CMS. My personal home page uses Joomla. But I tend to find it a bit too big, slow, buggy etc.

Agenda

Description	Windows	Linux	Solaris	WinCE	Comments

Google Calendar

Web-based service

Kurlo

Java-based address book. I haven't tried it . No synchronization with Plaxo, Thunderbird etc.

Lightning

Same as Sunbird, but integrated to Thunderbird

Open Contacts

Absolutely ugly interface, but it works pretty well. Imports Thunderbird address books + said to be usable with SyncML

Sunbird

Standalone Mozilla application. There's a plugin to read/write to Google Calendars

Backup

Cobian Backup

hand made scripts using tar, rsync…

hand made scripts using xcopy…

Sprite Backup

Performs an entire system backup. Commercial.

WM5torage

Shows the storage card as an USB device. This device can then be parsed from Windows, Linux or Solaris.

Blog

DotClear

Installs on a web server

Bug Tracker

Mantis

I've never installed it, only used it

Bugzilla

I've never installed it, only used it

CMS

Joomla

Installs on a web server. Versions I have tried are heavy and bugged, but there's an active community and it's very customizable

Compression

7Zip

Supports .gz, .bz2 etc

bzip, gzip, zip

Development in C

Description	Windows	Linux	Solaris	WinCE	Comments

Visual Studio Express

Actually quite handy

Eclipse

Very heavy but powerful. There's an extension for C

Emacs

On Windows, use Cygwin to get it. Of course, other text editors such as PSPad are possible too.

ConTEXT

Development in Java

Eclipse

Very heavy but powerful

jEdit

Actually, I've never really used it for long.

Download Manager

DownThemAll

This is a Firefox add-on

Disk encryption

TrueCrypt

Supports full disk encryption. On Linux, requires a recent kernel.

EncFS

Extremely handy to backup, but security level might not suit all situations + said to have issues concerning NFS

dm-crypt

Security Box Disk

Commercial but nice

PGP Disk

Commercial but nice

ZFS Encryption

Not mature

Diagrams and flowcharts

Dia

Kivio

KDE's Visio

File encryption

Description	Windows	Linux	Solaris	WinCE	Comments

GnuPG

On Windows, the WinPT front-end is quite convenient (though buggy) + GPGee

PGP Disk

Commercial but nice

File Explorer

Total Commander

Allows edition of files in EEPROM.

FTP Client

FileZilla

FireFTP

Firefox add-on

Gftp

Groupware

OBM

I haven't tried it yet

Image Editor

The GIMP

Supports Wacom Tablets. This is the alternative to Photoshop.

Image Viewer

XnView

Light, and works well.

NikonView

Free with my camera. Quite good, and not too heavy.

Instant Messaging

Google talk

Netvibes google talk widget

A bit buggy

Gmail's widget

GoTalkMobile 3

Google Talk for Pocket PC

Pidgin

Multi-protocol IM. Supports Google Talk. I've only tried it on Solaris, where it works fine.

Mail Client

Thunderbird

On Linux, the name's Icedove (I'm not getting into the details, there is a slight difference with Thunderbird).

Mail Encryption

Enigmail

This is a Thunderbird add-on. It requires GnuPG.

Mobile synchronization

ActiveSync

Actually, I hate it, but I haven't found any open source alternative…

FinchSync

Java/HTTP based. It will only synchronize a few things such as address books

GMobileSync

Synchronizes Google Calendar ↔ Mobile

Music player

Amarok

iTunes

Honestly, I barely know how to use it. I don't play music on my PC very often.

Windows Media Player

I don't use it much either. Synchronization with mobile devices is a bit complicated.

Network sniffer

Description	Windows	Linux	Solaris	WinCE	Comments

Wireshark

Ex Ethereal

Password safe

Bruce Schneier's Password Safe

The interface is very basic, but it works well. And it's safe :

KeePass Password Safe

It's possible to import/export Password Safe databases using an extension.

KeePassX

Actually, if you really try, there's a chance this works on Solaris too, but you have to compile it yourself, with Qt etc

Password Gorilla

The Tcl/Tk interface is just plain ugly, and the application is slow, but it reads/writes Password Safe databases without problem.

Password Safe

A Password Safe port to Pocket PC

PDF Viewer

Acrobat Reader

Heavy

evince

Also able to view PS files

Foxit Reader

Smaller than Acrobat Reader

gpdf

Basic.

Project Management

Open Workbench

I haven't tried it yet, but it's meant to be an open source alternative to Microsoft Project

Remote Desktop Control

Description	Windows	Linux	Solaris	WinCE	Comments

Tight VNC

Free. A few lags.

Radmin

Commercial, but good.

Social Network

Plaxo

Web service. Integrates both personal and professional profiles. Synchronizes contacts with Gmail (free), Yahoo (free) and Pocket PCs (pay)

LinkedIn

Dedicated to professional contacts

VoIP

Skype

Free but closed source.

GoSIP

Slow on my HTC Touch

Slides

LaTeX

I've seen very nice results using the Prosper package

PowerPoint

PowerPoint Mobile for Pocket PCs

Open Office Impress

The open source alternative to Power Point. Able to read/write .ppt

Star Office

Typically installed on Solaris. Able to read/write .ppt

SSH Client

Description	Windows	Linux	Solaris	WinCE	Comments

PuTTY

ssh

Use Cygwin to get ssh on Windows

Pocket PuTTY

A port of PuTTY for Pocket PC.

System cloning

Clonezilla (LiveCD)

A free alternative to Norton Ghost. I must be dumb: I never managed to re-use the clones

System rescue

System Rescue CD (Live CD)

Even offers a graphic environment. Useful to check, repair partitions.

Text editors

Description	Windows	Linux	Solaris	WinCE	Comments

PSPad

Light, works well. I had a few crashes though. Usable for development.

Win32Pad

A replacement to Windows' notepad. Light, works well, but not meant to be used for development

ConTEXT

Okay. Usable for development. I was a bit disappointed.

Emacs

Emacs really is more than a simple text editor. I it ! On Windows, use emacs over Cygwin

Versioning system

Subversion

An alternative to CVS. Simpler to use. The TortoiseSVN extension for Windows is great.

CVS

Complicated but reliable

Virtual machine

VirtualBox

Open source. Nice, but several limitations and bugs.

VMWare

The reference. But commercial (yet, the VMWare Player is free)

Video Editor

Video Spin

Very intuitive, but crashes from time to time (fortunately, the recovery procedure works !) and commercial

Qemu

I haven't tried it.

Web browser

Firefox

Firefox is certainly not perfect, but it's the best (to my opinion) ! For Linux, actually, it's Iceweasel. Crashes from time to time. Memory consuming.

Internet Explorer

On Windows, I simply hate it . On Pocket PC, it's okay.

Opera

Opera is a famous browser, but without any special reason, I'm not enthusiastic. Opera Mini is an adaptation of Opera for Pocket PC. There's a nice feature to zoom in/out of pages.

Lynx

This is a text-based browser. Handy when you don't have any windowing system.

Web editor

Description	Windows	Linux	Solaris	WinCE	Comments

KompoZer

Ex N-Vu

Wiki

DokuWiki

Does not require a MySQL database

Word editor

Jarte

I've just tried it, but it seems very promising, particularly if you just want to edit a few nicely set notes. It reads Word (.doc or .docx) documents if they're not too complicated (no embedded objects). It does not support the Open Office format.

Open Office Writer

Open Source alternative to Word. Able to read/write .doc

Word

On Pocket PC, it's called Word Mobile

X server

Cygwin-X (open source)