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Alternatives to Putty.org

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connectbot.org favicon

Securely access servers from your Android device

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openlitespeed.org favicon

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OpenLiteSpeed is a free, open-source web server focused on speed, security, and easy setup for websites and apps, with built-in optimization features.

castleproject.org favicon

Build .NET apps with open-source frameworks

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Castle Project offers open-source tools and frameworks to help you build robust and flexible .NET applications for a variety of development needs.

openvswitch.org favicon

Automate and manage virtual networks at scale

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Open vSwitch is an open source virtual switch for automating and managing complex networks across multiple servers, supporting standard protocols.

vtk.org favicon

Visualize scientific data in 3D for free

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VTK is open source software for 3D rendering and visualization of scientific data, offering interactive tools and advanced plotting features.

koha-community.org favicon

Manage your library online with open-source tools

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Koha is a free, open-source library management system for all library types, offering cataloging, circulation, and more. Try it online or download it.

django-cms.org favicon

Build and manage sites easily with Django

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django CMS is an open-source content management system for building and managing websites with Django, designed for businesses, agencies, and developers.

slic3r.org favicon

Open source 3D printing software

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Slic3r is a free, open source toolbox for 3D printing that lets you prepare, slice, and optimize models for your printer. Download and start printing today.

sile-typesetter.org favicon

Create professional documents with open-source typesetting

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SILE is an open-source typesetting system for creating high-quality documents. Download releases, view the changelog, and explore development updates.

frrouting.org favicon

Run advanced internet routing protocols on Linux

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FRRouting is an open-source suite for Linux and Unix that lets you run and manage multiple internet routing protocols on your network.

konsole.kde.org favicon

Run commands in a powerful, customizable terminal

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Konsole is KDE's terminal emulator, letting you run commands, manage files, and access system tools in a customizable and integrated environment.

librecmc.org favicon

Use fully free OS for embedded devices

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libreCMC offers a fully free embedded GNU/Linux OS focused on routers and small computers for software freedom.

freehackers.org favicon

Explore and share open-source projects easily

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A community-driven site for enthusiastic programmers sharing open-source projects and software development resources.

libreoffice.org favicon

Work on documents, spreadsheets, and more for free

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LibreOffice is a free, open-source office suite for documents, spreadsheets, and presentations—compatible with Microsoft Office formats and privacy-focused.

openldap.org favicon

Get open-source LDAP software and documentation

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OpenLDAP offers open-source LDAP software, guides, and resources for managing directory services. Access downloads, documentation, and support tools.

ja.wordpress.org favicon

日本語で使える無料のサイト作成ツール

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WordPress.org 日本語は、誰でも簡単にブログや大規模サイトを作れる日本語対応のオープンソースCMSです。

isc.org favicon

Get trusted open source Internet software

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ISC is a nonprofit supporting open source software for core Internet infrastructure, offering downloads, support, and resources for public benefit.

openbsd.org favicon

Secure, open-source operating system

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OpenBSD is a free, security-focused operating system known for its reliability, open source tools, and emphasis on code correctness and cryptography.

opnsense.org favicon

Secure your network with open source firewall tools

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OPNsense is an open source firewall and routing platform that helps you secure and manage your network with advanced protection and easy-to-use features.

openocd.org favicon

Debug embedded devices with open-source tools

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OpenOCD is an open-source tool for on-chip debugging, programming, and testing of embedded systems, with community support and detailed documentation.

formtools.org favicon

Build and manage web forms with full control

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Form Tools is a free, open source PHP/MySQL script for creating, managing, and visualizing web forms and form data right on your own website.

gafferhq.org favicon

Create and render VFX scenes with ease

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Gaffer is a free, open-source VFX tool for look development, lighting, and compositing, letting artists build, tweak, and render scenes with scripting support.

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Control and automate multiple drones with open-source tools

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Open-source project offering autopilot and ground station software for various types of drones with autonomous flight focus.

lodel.hypotheses.org favicon

Create and manage digital publications with ease

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Lodel is an open-source electronic publishing tool by OpenEdition, designed for easy digital content editing and adaptable to various publishing needs.

jmeter.apache.org favicon

Test web app performance with open-source tools

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Apache JMeter is an open-source tool for load and performance testing web applications and more, helping you analyze and improve site reliability.

grass.osgeo.org favicon

Analyze and model geospatial data for free

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GRASS GIS is a free, open-source platform for advanced geospatial analysis, modeling, and spatial data management for mapping and scientific research.

exim.org favicon

Flexible, open-source email server for Unix systems

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Exim is an open-source mail transfer agent for Unix systems, offering flexible email routing and advanced mail checking for secure internet email delivery.

nagios-plugins.org favicon

Official plugins for enterprise monitoring

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Download official Nagios plugins for enterprise-grade open-source monitoring. Get tools, updates, and support for your Nagios Core setup.

freeradius.org favicon

Authenticate users across networks securely

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FreeRADIUS is a widely used open-source RADIUS server for user authentication, authorization, and accounting, trusted by ISPs and enterprises worldwide.

lirc.org favicon

Control devices with your remote on Linux

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LIRC lets you control and decode signals from infrared remote controls on Linux, making it easy to manage multimedia devices with your computer.

Worldwide Putty.org Alternatives

emtec.com favicon

Securely connect to remote servers with ease

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ZOC is a professional SSH client and terminal emulator for Windows and macOS, letting you securely connect to remote servers with advanced features.

secureshellfish.app favicon

SSH into servers directly from your iPhone or iPad

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Secure ShellFish is an SSH client app for iOS that offers seamless terminal access and integrates deeply with your device for better performance.

mobaxterm.mobatek.net favicon

Tabbed SSH, X server, and remote tools in one app

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MobaXterm is a free Windows app offering tabbed SSH, X server, RDP, VNC, and more, making it easy to manage remote servers and desktops from one place.

fricas.github.io favicon

Solve advanced math problems with open-source tools

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FriCAS is an open-source computer algebra system for advanced mathematics, letting you explore, compute, and visualize complex math expressions.

x64dbg.com favicon

Debug Windows apps with a free open-source tool

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x64dbg is a free, open-source debugger for Windows that helps you analyze and debug x64 and x32 applications, with both executables and source code available.

maxima.sourceforge.io favicon

Solve math problems and plot graphs for free

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Maxima is a free computer algebra system for solving math problems, doing symbolic computation, and plotting graphs, available as open source software.

bind9.net favicon

Download open source DNS server software

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BIND9.net offers open source DNS software with authoritative server and recursive resolver tools for managing domain name systems effectively.

siag.nu favicon

Free office suite for Unix systems

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Siag Office offers a free, lightweight office suite for Unix systems, including word processing, spreadsheets, and more. Open source and easy to use.

vscodium.com favicon

Use VS Code without tracking or licensing limits

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VSCodium provides open source, community-built binaries of the VS Code editor—free to download and use for coding without Microsoft branding or telemetry.

fuse-emulator.sourceforge.net favicon

Play ZX Spectrum games on modern devices

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Fuse is a free, open source emulator that lets you run classic ZX Spectrum games and software on Unix, Windows, Mac, and more.

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