Best Web-Based Terminal Emulators of 2025

Rio is a terminal application developed using Rust, WebGPU, and the Tokio runtime, aimed at delivering an exceptional frames-per-second experience while also providing the flexibility to minimize GPU usage. The terminal's rendering engine utilizes a Redux state machine, ensuring that unchanged lines are not redrawn, thereby prioritizing a minimal rendering process most of the time. Furthermore, Rio is crafted to be compatible with a WebAssembly runtime, paving the way for future enhancements such as customizable tab systems through WASM plugins written in various programming languages. Additionally, Rio employs WGPU, which serves as a WebGPU implementation designed for non-browser environments and acts as a backend for Firefox’s own WebGPU implementation, allowing for a more efficient utilization of modern GPUs compared to WebGL alternatives. This focus on performance and customization makes Rio a versatile choice for terminal users seeking both speed and adaptability.

Terminal emulation allows a computer terminal, often a personal computer, to mimic the appearance and functionality of an older terminal type, enabling users to run software that was designed for that specific terminal. Among the top terminal emulator software is OpenText HostExplorer, which is particularly well-suited for IBM® 3270 Mainframes, AS/400s, UNIX, and FTP hosts. This software offers speedy, secure, and dependable connections from Microsoft® Windows® PCs to various enterprise systems. By utilizing HostExplorer, organizations can harness the advantages of modern PC and web technologies while safeguarding their investments in data and information systems. The seamless transition to this software preserves the existing user experience, negating the need for retraining and minimizing disruptions to business workflows. Furthermore, it streamlines maintenance by providing automatic upgrades and centralized management, thus significantly reducing both cost and effort associated with upkeep. With its robust capabilities, HostExplorer stands out as an essential tool for businesses looking to modernize their terminal access without compromising on reliability.

StayLinked allows you to move to the most advanced devices, measure and optimize productivity using cutting-edge business intelligence and interface with ground-breaking technologies such as automation, robotics and augmented reality. It is crucial to keep employees on the job. Traditional terminal emulator solutions can cause erratic performance and connectivity. End users spend more time attempting to fix problems with the help desk than they do performing critical application tasks. StayLinked ensures that applications and users run at their best by eliminating lost sessions, enabling central application configuration and management, as well as providing highly efficient help desk tools. StayLinked Terminal Emulation is the fastest TE solution for mobile devices. Traditional terminal emulators send all telnet/SSH traffic directly to the mobile device.

Rocket® Passport terminal emulation solutions encompass both Rocket Passport Web to Host® and Rocket Passport PC to Host, providing a comprehensive suite for host access. The Rocket Passport Web to Host software serves as a robust, browser-based IBM® 3270 emulator that can lead to significant cost savings for businesses currently relying on other desktop terminal emulators. It offers advanced IBM TN3270E emulation alongside basic TN3270 emulation, and supports IBM® i (TN5250), UNIX/DEC (VT), and secure File Transfer Protocol (FTP). By utilizing Passport Web to Host, remote or distributed Windows users can access essential tools for secure, reliable, and efficient connectivity to host systems. This includes features such as SSL and SSH security support, VB Script for macro development, HLLAPI, and an Object API for seamless integration with IBM applications, along with extensive Windows cut-and-paste functionality. In addition, Passport PC to Host empowers Windows users with all necessary tools to establish secure and productive connections to host systems, ensuring a streamlined user experience. The combination of these solutions solidifies Rocket's position as a leader in terminal emulation technology.

Flynet Viewer™, TE (Terminal Emulation), is a browser-based terminal emulator that allows you to access key business systems. Access Mainframe, iSeries and Unix systems from any device that has zero client software. The terminal emulator is installed on a server environment either on-premises or in the cloud and centrally managed by Flynet Viewer administration center. Flynet Viewer is compatible with all browsers and devices that do not require ActiveX or Java plugins. Flynet Viewer includes all the features that you would expect from an enterprise terminal emulator. These include file transfer, client and server-side macros, single sign-on and MFA, file transfer, file transfers, file transfer, single-sign-on, MFA, and keyboard remapping. Flynet Viewer Terminal Emulation offers the same functionality as a full fat desktop Terminal Emulation Client but is delivered over the internet and served up via browser. Flynet Viewer Terminal Emulation can be used on any device, regardless of the operating system or native browser.

Wavelink's terminal emulation capabilities enhance your enterprise systems, allowing warehouse employees to access them via mobile devices. This technology enables workers to increase their picking speed and accuracy, leading to a higher completion rate of tasks during each shift. It also supports barcode scanning, automates processes with scripts, and incorporates voice functionality, all while ensuring that there are no changes made to your existing host system. From managing inventory to picking, receiving, and cross-docking, staff can perform a wide range of tasks both on the warehouse floor and beyond. Our solutions facilitate task navigation and utilize cutting-edge data capture technologies compatible with the mobile devices you prefer, seamlessly integrating with all major systems, including Manhattan, JDA, and Infor. As employees juggle multiple responsibilities, our telnet solutions are designed to do the same. Ultimately, it's about maximizing order shipments, especially during busy periods, ensuring that your operations run as efficiently as possible. In this way, productivity levels can be significantly elevated, translating to improved overall performance for your business.

Introducing a robust, swift, and secure operating system for Windows® that facilitates seamless connectivity solutions and support for IBM mainframes and AS/400 systems, now enhanced with web and mobile interface capabilities. This application utilizes TCP/IP alongside the Winsock interface, enabling users to connect effortlessly to IBM mainframes via both LAN and dial-up connections. QWS3270 Secure serves as a 3270 emulation tool, providing PCs with the ability to access SSL-enabled IBM mainframes through a secure TCP/IP link. Additionally, this application supports quick connections to AS/400 systems using the same TCP/IP and Winsock framework, whether over LAN or dial-up. The WIRE platform offers a web-based modernization solution aimed at upgrading and enhancing mainframe application user interfaces, effectively delivering them to both web and mobile environments, thus broadening accessibility for users across various devices. This integration of modern technology not only improves efficiency but also enriches the overall user experience.

You can configure sessions with hotspots and keyboard mapping. Web frameworks built around mainframe applications. You can centrally install and deploy applications for instant availability. Users automatically download the latest version of your updates when they connect to your server. Connect to any major GDS. To generate tickets, baggage tags, boarding passes, and tickets using the Airlines Printer component, Connect to host systems to make IBM, UNIX and Unisys data instantly available to browsers from any location, without the need to use Java. End users can access the mainframe and other applications using the new Reflection for the Web Launcher. This removes the need for Oracle Java. Allow users to work in the way they prefer by allowing them to access terminal sessions, file transfer, and printing.

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Picture yourself engaged in your preferred text editor, ready to run commands such as executing unit tests, checking manual pages, or modifying configuration files—all while keeping your hands firmly on the keyboard. With a simple press of your designated "Show Guake" hotkey, you can swiftly execute your desired command and then press it again to hide the terminal, effortlessly returning to your workflow. Guake is designed to work seamlessly in a multimonitor environment, allowing you to open it on the screen where your cursor is or in a separate dedicated display. You can utilize multiple named tabs, with names automatically generated based on the command you are running, or you can customize them to your liking. Additionally, you have the option to have Guake launch automatically upon logging in and can set up a script to run at startup, enabling you to configure your Guake tabs according to your specific needs. This level of integration makes it a powerful tool for anyone looking to streamline their coding process.

The highly regarded emulator favored by global mainframe clients is designed to seamlessly transition mission-critical terminal applications to modern platforms like the web and mobile devices, or even as APIs, all without altering the original application. HCL ZIE for Transformation facilitates this extension of essential terminal applications, enabling their deployment as standard SOAP or RESTful web services without necessitating any rewrites or access to the application's source code. By implementing this solution, organizations can significantly cut down on training expenses while enhancing user productivity through better navigation and usability, thereby minimizing data entry mistakes. The tunable default rendering and customizable screens of ZIE for Transformation ensure that all existing application interfaces are presented with a fresh, user-friendly design. Furthermore, this solution supports deployment across various environments, including web portals and Eclipse RCP, granting access through numerous web browsers, including those on mobile devices, which broadens the accessibility of critical applications. This versatility not only modernizes the user experience but also empowers businesses to adapt to evolving technological landscapes efficiently.

In the current economic landscape, organizations can significantly boost their productivity and adaptability by effectively optimizing their IT resources. Ericom's PowerTerm® WebConnect HostView provides a solution for businesses to achieve this goal through web-to-host emulation. By utilizing the advantages of PC-client access software and server-based computing, organizations can enhance their legacy systems. This platform enables centralized management of configurations and software updates, which helps conserve both time and administrative resources. It also enhances overall productivity by allowing access to critical business applications from anywhere at any time via a standard web browser, irrespective of the user's geographical location. Furthermore, the solution leads to lower expenses related to individual licensing, maintenance, support, and updates. It also includes robust security features such as SSL, SSH, SFTP, integration with Active Directory and LDAP, and support for Single Sign-On, as well as various authentication methods like Kerberos, RADIUS, RSA® SecurID®, and SecurEnvoy® SecureAccess and SecurICE two-factor authentication. The comprehensive nature of these features ensures that organizations can safeguard their data while optimizing their operations.

Rocket® Terminal Emulator, previously known as Rocket® BlueZone®, offers a unique approach to terminal emulation solutions. Users have the ability to tailor their environments extensively, enhancing both comfort and productivity. This solution features robust security measures that safeguard vital business information, and it serves as an economical option that provides significant value. Transitioning from your current terminal emulation tool is made simple with our helpful migration wizards and a dedicated support team to assist you in the switch to Rocket Terminal Emulator. Each user can personalize their terminal setup to create a familiar and inviting workspace. Often, users of host systems have specific shortcuts and hot-keys arranged for their frequently performed tasks, and with Rocket Terminal Emulator, many of these macros can seamlessly transfer from your previous emulator, ensuring a smooth continuation of your workflow. Consequently, the transition not only enhances user experience but also maintains productivity levels during the changeover.

Connect customers and business users to your data-rich enterprise system - from TPF and ALCS hosts to IBM, Unisys and OpenVMS to HP 3000 and HP NonStop (Tandem6530). InfoConnect can be run on Windows 10 with confidence. You will have the flexibility to manage user preferences and changing desktops. Integrate full-featured emulators into corporate portals or web pages. Configure installation configurations easily. Centrally manage Terminal IDs to host connections. Print from shared printers, host device, card readers, specialized tickets printers, point of sale terminals and a variety old and new communication protocols. InfoConnect can be used with MSS to streamline and secure your host access operation. InfoConnect Desktop integrates with your Identity and Access Management system (IAM), to authenticate to MSS. MSS then seamlessly propagates changes in application settings and user-specific information from a central server.

You can quickly provide browser-based access from one central location without having to manage Java runtime environments. You must know who has access to your mainframe and make sure that only authorized users can get to the login screen. To move from a potentially insecure eight-character password to a one-time pass ticket, leverage enterprise credentials. Why reinvent the wheel? Through the corporate user directory, you can provision terminal emulation just like other corporate resources. Securely deploy browser-based sessions that are customized with quick keys, macros, and supporting keyboards. Access HTML5 to 3270, 5250 VT, Unisys, VT, Unisys, and Airline host applications from a central place - without the need for managing workstation dependencies or Java runtime environments.

Turbosoft's terminal emulation program supports more than 80 emulations of systems such as IBM and HP, OpenVMS (Unix), HP NonStop (Unix), Unisys, Wyse, and many more. TTerm Connect is our web-based HTML5 offering. TTerm Connect, our web-based terminal emulator, offers powerful, flexible terminal emulation using only a web browser. TTerm Connect provides all the features that you would expect from a desktop emulator in a lightweight web app. TTerm Connect is centrally managed and configured. It can be deployed with your existing web client or integrated into your existing website. Any host, any device. Available for all modern web browsers and client devices, with options for Linux or Windows based servers. Flexible and capable of serving the terminal emulation requirements of thousands of concurrent users.