Modern Terminal Emulator for Enterprise

Zero install. Three protocols. Active-Active cluster. LDAP/Kerberos. Migrate from legacy emulators with zero disruption.

60-Day Evaluation Available

Currently in POC evaluation at a leading Israeli insurance group (5,000 users). Migrating from legacy emulators after vendor EOL.

IMTerm split view, terminal alongside modern HTML form with bidirectional synchronization

Terminal view alongside modern HTML form - edits synchronize bidirectionally

Why Choose IMTerm?

Zero Install

Pure browser-based. No Java, no ActiveX, no client software. Works on Windows, Mac, Linux, iPad.

AI-Powered

Agent Mode with 4 AI providers + offline mode. Describe a task, the AI navigates.

Hebrew and BiDi

Full CP424 and CP803 support. Screen reverse. Business patterns. VT220 Hebrew. The only emulator built for Israeli enterprise.

Enterprise Security

Kerberos SPNEGO, mTLS, LDAP, OIDC, SAML, FIPS 140-2 (BoringCrypto). 96-event audit log.

Ready to modernize your terminal access? Contact Sales

Key Features

Screen-to-HTML

Auto-modernization of green screens. Dual view, REST API, and custom templates. Zero host changes required.

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Agent Mode

4 AI providers + offline mode, scripting, scheduled cron, and event-driven automation. Describe a task - the AI navigates.

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Enterprise Printing

SCS-to-PDF, Hebrew CP424, CUPS/LPR. Print Archive Pro for compliance retention.

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Active-Active Cluster

Peer mesh architecture - every node is equal. Any node can administer the full cluster. Graceful drain, rolling upgrades, zero downtime. No single point of failure.

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LDAP / AD / Kerberos

Full Active Directory integration with group-to-role mapping. LDAP, AD, Kerberos SSO, or mixed mode with local fallback. Periodic group sync.

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REST API v2

OpenAPI 3.0.3, Swagger UI, rate limiting, and PSL migration tooling for smooth transitions.

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RPA / HLLAPI Bridge

Native HLLAPI bridge DLL for UiPath, QTP/UFT, Blue Prism. Existing RPA scripts work without modification. REST API for modern automations.

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Know before you buy

The only terminal emulator with a built-in sizing calculator. Enter your hardware and user count - IMTerm tells you exactly how many servers you need, then enforces that limit at runtime.

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Built for Scale

500+ Concurrent Sessions per Node
45ms P50 Connect Latency
3+ Node Active-Active Cluster
96 Audit Event Types

What's New in v2.3.5

  • TN5250E correctness: 13 defects fixed, verified against IBM SA21-9247-6 and pub400.org
  • Active-Active peer mesh cluster (no SPOF)
  • LDAP / Active Directory / Kerberos authentication
  • AS/400 automatic failover hosts
  • HLLAPI bridge for UiPath, QTP/UFT, RPA tools
  • Performance reports (P50/P95/P99 latency)
  • Macro recorder and playback
  • PowerTerm session import (.pts files)
  • Graceful drain and rolling zero-downtime upgrades
  • Stable node identity across cluster restarts
  • Hebrew PDF rendering (Cousine font embedded)
  • OpenAPI 3.0 spec + Swagger UI at /api/docs
  • Webhook delivery for session events
  • Interactive enterprise setup TUI (imterm-setup)
  • Complete installation, admin, and user guides

Built on Proven Technology

Go Single binary, zero runtime dependencies
React + TypeScript Strict-mode frontend, maintainable at scale
xterm.js Battle-tested terminal rendering engine
WebSocket Real-time bidirectional transport
BoringCrypto FIPS 140-2 validated TLS
gokrb5 Native Go Kerberos implementation
Native TN3270 Pure Go 3270 engine, no s3270 dependency
BubbleTea Enterprise setup TUI, MIT licensed