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line-harness-oss
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line-harness-oss

Active·★ 603·MIT·Updated 2026-10-20
★ Trending

L Harness is a completely open-source CRM solution for LINE Official Accounts, offering a free alternative to commercial services like L and U companies. It automates marketing campaigns, manages customer relationships, and integrates AI capabilities, all built on Cloudflare Workers and D1.

line-harness-oss sits in the Workflow Automation category, so it is usually better judged by workflow fit, deployment style, and team needs than by isolated features alone. Based on the available metadata, it leans most clearly toward Step-by-step messaging, scheduled broadcasts, and personalized templates.. A representative use case is Replace costly commercial LINE CRM solutions with a free, open-source alternative.. The listed license is MIT. GitHub stars are currently 603. Relevant tags include LINE CRM, Marketing Automation.

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This write-up is based on the project's README and public repository data. We have not hand-tested the tool.

#LINE CRM#Marketing Automation#Cloudflare Workers#TypeScript#Open Source#AI Integration#Dev Tooling#Workflow Automation
$ Install
$ npx create-line-harness
↗ Visit site★ GitHub
01

Features

01Step-by-step messaging, scheduled broadcasts, and personalized templates.
02Comprehensive friend management, lead scoring, and 1:1 operator chat.
03Dynamic rich menus and in-LINE forms (LIFF) for interactive marketing.
04AI integration with MCP Server for natural language control via Claude Code.
05Multi-account management with automatic BAN detection and traffic pooling.
02

Why choose it

+Step-by-step messaging, scheduled broadcasts, and personalized templates.
+Comprehensive friend management, lead scoring, and 1:1 operator chat.
+Replace costly commercial LINE CRM solutions with a free, open-source alternative.
+Supports 5 platforms or runtime environments.
03

Trade-offs

!The final decision should still be made through side-by-side comparison with similar tools.
04

Compatibility

Cloudflare
Hosting
Verified via docs
LINE Messaging API
Platform
Verified via docs
Node.js
Runtime
Verified via docs
TypeScript
Language
Verified via docs
iOS
App
Verified via docs
05

Quick start

1
$ npx create-line-harness
06

Use cases

↳Replace costly commercial LINE CRM solutions with a free, open-source alternative.
↳Automate sophisticated marketing campaigns, lead nurturing, and customer engagement on LINE.
↳Implement and track affiliate marketing programs directly through LINE with detailed performance tracking.
↳Enhance customer service efficiency using integrated operator chat and comprehensive conversation management.
↳Streamline event bookings, webinar registrations, and appointment scheduling with LIFF forms and calendar integration.
07

Alternatives

⚡Top VS:
VStrypost★721→VSActivepieces★25.2k→VStrigger.dev★16.6k→

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Shudesu /
line-harness-oss
↗

L Harness — self-hosted LINE Official Account CRM: step messaging, broadcasts, forms and reservations, with MCP and TypeScript SDK. By Shudesu (野田修一).

603MIT
Last commit2d ago
StatusActive
CategoryWorkflow Automation
Links
Documentation↗Discussion↗Issues↗Releases↗
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