Honjin

Honjin is a code editor that manages multiple coding agents and projects inside one desktop window.

Honjin is a code editor designed to manage multiple coding agents and projects from a single window. It integrates with herdr, a terminal running agents in the background, allowing users to start agents on any project folder with a single click. A side panel displays active, blocked, and completed agents, while a changes view groups uncommitted file modifications across projects. Built on Eclipse Theia, the editor includes language support, git, a debugger, and VS Code extensions from Open VSX. It runs locally on macOS with Apple silicon and supports Claude Code, Codex, Antigravity CLI, and opencode agents.

Honjin at a glance

Best for: Software engineer
Runs on: macOS
Pricing: Free and open source
Released: October 2026
Category: AI coding tool
Website: github.com/dhyeys54/honjin

Key features

Manage multiple projects and coding agents in one window
Start agents on any folder with a single click
View active, blocked, and finished agents in a side panel
Track uncommitted changes grouped by project
Keep agents running in the background via herdr
Use VS Code extensions from Open VSX
View agent timelines for the last 15 minutes

Use it for

Running multiple coding agents simultaneously across different projects
Monitoring agent status and blocked tasks from a side panel
Viewing uncommitted file changes and diffs across repositories
Editing code with Eclipse Theia and Open VSX extensions

Alternatives to Honjin

Cline — Open source, any model, with approval on every step
Sonah — Verifies agent tasks and decisions against the actual code changes.
Kiro — Spec-driven coding with property-based tests to catch hidden bugs
Factorai — Manages multiple independent AI coding agents in parallel from one interface.
Kilo Code — Open-source agent with any model and no markup on inference
OpenCode — Works with 75+ model providers, local models, and existing subscriptions
Zeron — Manage and control coding agent sessions across multiple devices from one window.
Agent Purge — Manage system prompts for multiple coding agents from one place.
Honu — Creates custom desktop microapps instantly using natural language and Claude Code.
FuXi — Runs as a single binary with automatic model routing and failover.
Orca — Runs multiple AI coding agents simultaneously in isolated workspaces.
Reika — Manages small local models with careful context discipline and loop breakers.

All Honjin alternatives