IBMi 5250 Terminal Emulator

Efficient IBM i Access From Any Browser

A pure HTML 5250 / tn5250 emulator for IBM i, iSeries, AS/400, and other applications on the 5250 protocol — on any device, from any browser, with no software installed on the device.

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Trusted by the world's leading organizations

5250 Access, Simpler and More Secure

Desktop 5250 clients tie IBM i access to managed installs on every machine. Jubilant moves that access into the browser — centrally administered, compliant, and faster for the people who use it every day.

Zero-client 5250 sessions

No applets, plugins, or installs. Users reach IBM i, iSeries, and AS/400 applications from any device and any browser — including legacy browsers without HTML5.

Centralized administration and maintenance

Host definitions, users, sessions, and settings are managed from one secure location — no per-desktop patching or configuration drift.

Compliance built in

Compliant with the Digital Operational Resilience Act (DORA), 23 NYCRR Part 500, and the U.S. federal mandate on multi-factor authentication. KPMG penetration tested, with WebSockets and the latest SSL/TLS.

Fast, data light, hosted your way

Extremely performant — surpassing even desktop emulators — and data light. Run it in the cloud (MS Azure, Oracle Cloud), your data center, or locally.

Certified and compliant for regulated environments

Key Features of Jubilant 5250 Emulation

Everything a desktop 5250 client does, delivered through the browser with central control.

Zero-client browser accessPure HTML 5250 / tn5250 emulation on any device, in any browser — nothing to install or maintain.

Centralized administrationAdminister hosts, users, sessions, and maintenance from one secure location.

Regulatory complianceDORA, 23 NYCRR Part 500, and U.S. federal MFA mandate compliant out of the box.

Total securityWebSockets, the latest SSL/TLS, and KPMG penetration testing protect every session.

Macro WizardsCommon server and client tasks reduced to a key press, created without code.

Custom UIs and accessibilityIncrease accessibility with custom UIs and native compatibility with NVDA, JAWS, and VoiceOver screen readers.

Fully programmableA documented API, with full MS Office and Office 365 integration.

Cloud, data center, or localHost on MS Azure, Oracle Cloud, your data center, or on premises — the emulation is the same.

Extendible by designGrow into automatic web service generation and UI modernization options when you are ready.

How Top Organizations Leverage Jubilant TE

See how industry-leading organizations use Jubilant for modern, secure access to their IBM i systems.

Rio Tinto AlcanAlongside the software, Jubilant delivered a full turnkey package that improved iSeries usability for users within one month.

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DAF TrucksDAF Trucks replaced desktop emulation with Jubilant, reducing operational overheads and making it easier for users to work across different devices.

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Volvo CEVolvo Construction Equipment improved dealers' access to its order management systems with browser-based sessions worldwide.

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View our customer success stories

See Jubilant in Action

Customer proof

What Our Clients Say

“We have in-house RPG skills and wanted to implement the business logic on our iSeries but needed to improve the usability for users. Jubilant’s terminal emulator is easy to use and we’ve been able to solve this problem in just one month”

Rio Tinto Alcan

“Jubilant helped us improve access to our host MRP applications with a better user interface, faster operation and greater stability across every site”

AB inBev

“Replacing desktop emulation with a browser-based service reduced our operational overheads and made access far simpler for users in the plant”

DAF Trucks

Frequently Asked Questions

What is a 5250 terminal emulator?

Software that reproduces the IBM 5250 terminal so users can work with IBM i, iSeries, and AS/400 applications from a modern device. Jubilant delivers it as pure HTML in the browser.

Do users need software installed on their device?

No. Sessions run in any browser on any device, including legacy browsers without HTML5 support.

Can Jubilant be centrally managed?

Yes. Hosts, users, sessions, and settings are administered from one secure location, removing per-desktop maintenance.

Is Jubilant suitable for enterprise security requirements?

Yes. It supports WebSockets and the latest SSL/TLS, is KPMG penetration tested, and is compliant with DORA, 23 NYCRR Part 500, and the U.S. federal MFA mandate.

Can Jubilant be deployed in the cloud?

Yes. It runs on MS Azure and Oracle Cloud, as well as in your data center or locally.

Can Jubilant support UI modernization?

Yes. The same platform extends to automatic web service generation and UI modernization, so 5250 screens can evolve into modern web interfaces when you are ready.

Is an evaluation available?

Yes. Jubilant offers a fully supported, 7-day evaluation of the Jubilant Terminal Emulator.

Migrating From Another Emulator

If you are reviewing 5250 access for IBM i, these comparisons set out the options and the migration route to browser-based access.

Best 5250 Emulator Options Rumba vs Jubilant HostExplorer vs Jubilant Ericom PowerTerm vs Jubilant All Jubilant products

Try It For Free

A fully supported, 7-day evaluation of Jubilant Terminal Emulator, in your environment, with our engineers alongside your team from day one. Answer a few quick questions and we will get you the correct terminal emulation download.

Start your 7-day evaluation Answer a few quick questions and we will get you the correct terminal emulation download, with our engineers alongside your team from day one. Try Jubilant TE free