Sylpheed   - lightweight and user-friendly e-mail client -


The source packages of the stable and development version of Sylpheed, and the Win32 binary for Windows and Mac OS X binary are available.

Some files are also downloadable from (formerly

Only bugfixes, security fixes, and small feature improvements and changes will be made for the 'Stable' version of Sylpheed. Usually it is recommended to use this version.

The 'Development' version will be released to test its stability when large addition of features and feature changes are made.

The full-text search program for Sylpheed Sylph-Searcher and Sylpheed core library LibSylph are also available.

Windows version (stable, for Windows Vista / 7 / 8 / 10) [Updated: 29 Jul 2016]

This is a 32-bit application which works on Windows Vista or later. All required files such as GTK+ library are included, so you can execute it right after the installation.

Please read the included README-win32.txt before executing it.

TypeFileLinkSizePGP signature
Installer version Sylpheed-3.5.1_setup.exe ( ( 7.8MB PGP signature
Zip archive version ( ( 10.4MB PGP signature
Patch to the previous version ( ( 2.2MB PGP signature

* Overwrite the patch to the previous version on 3.5-win32

The source code of included libraries

Source code (stable version) [Updated: 29 Jul 2016]

TypeFileLinkPGP signature
Source package (tar.bz2) sylpheed-3.5.1.tar.bz2 ( ( PGP signature
Source package (tar.gz) sylpheed-3.5.1.tar.gz PGP signature
Patch to the previous version (bz2) sylpheed-3.5.0-3.5.1.patch.bz2 PGP signature
Patch to the previous version (gz) sylpheed-3.5.0-3.5.1.patch.gz PGP signature

All previous versions

Windows version (development, for Windows Vista / 7 / 8 / 10) [Updated: 28 Dec 2015]

There is no development release now.

Mac OS X version (development, for Mac OS X 10.6 or later) [Updated: 18 Apr 2014]

TypeFileLinkSizePGP signature
Installer package (.dmg) Sylpheed_3.4.1-test1.dmg ( ( PGP signature

Source code (development version) [Updated: 28 Dec 2015]

There is no development release now.


Sylph-Searcher is a program that enables fast full-text search of messages stored in mailboxes of Sylpheed, or normal MH folders.

Sylph-Searcher requires the following programs:

GLib 2.4.0 or later (
GTK+ 2.4.0 or later (
MeCab 0.96 or later + mecab-ipadic (
PostgreSQL 8.3 or later, or 8.2 + tsearch2 (
LibSylph 1.0.0 or later (

The license of Sylph-Searcher follows the BSD license.

Win32 installer (for Windows Vista / 7 / 8)

This is the installer package which includes all components required for Sylph-Searcher. PosgreSQL will also be automatically setup, so you can easily use it.

Sylph-Searcher-1.2.0_setup.exe (13.7MB) (PGP signature)

Win32 binary (zip archive, for Windows Vista / 7 / 8)

GTK+, LibSylph, etc. are included. You can start using it after preparing PostgreSQL server and MeCab. (5.2MB) (PGP signature)

Source package

sylph-searcher-1.2.0.tar.gz (PGP signature)


LibSylph is a library which provides Sylpheed's core features independent from the UI of Sylpheed. You can utilize the features of Sylpheed from other applications using LibSylph. You can also create new mail clients with LibSylph. Moreover, LibSylph provides many APIs, which can be used independently, such as mail-related function, encoding conversion, string processing, I/O, XML processing, etc.

The license of LibSylph follows GNU LGPL.

Source package

libsylph-1.1.0.tar.bz2 (PGP signature)