Listmonk

Self-hosted newsletter and mailing list manager in one binary

LiteFlow

Lightweight Java rule engine for dynamic workflow orchestration

LiteLLM

Unified gateway for all LLM APIs with OpenAI compatibility

Litlyx

Cookie-free analytics with 30-second setup and AI-powered insights

LittleLink

Self‑hosted LinkTree alternative with 100+ customizable brand buttons

LLaMA-Factory

Zero-code fine-tuning platform for diverse large language models

LlamaIndex

Modular Python framework to index and query data for LLMs.

LLM Scraper

Extract structured data from any webpage using LLMs

Lobe Chat

Modern ChatGPT/LLM UI with multi-modal support and plugins

LogChimp

Self‑hosted feedback platform to shape better products

Logfire

Simple Python‑centric observability platform for faster development

logkit

Unified log and metric collector with web console

Logseq

Privacy-first platform for knowledge management and collaboration

Logto

Modern auth infrastructure for SaaS and AI apps

Loki

Scalable, label-driven log aggregation built for Kubernetes

Loonflow

Visual, extensible workflow automation platform for enterprises

Lora

Rapid, lightweight fine-tuning for Stable Diffusion using LoRA

LoRAX

Serve thousands of fine-tuned LLM adapters on a single GPU

Lorien

Infinite canvas drawing app optimized for performance and simplicity

Lotus

Flexible pricing engine for SaaS, usage‑based and custom plans

Lowdefy

Config-driven web framework for building business apps fast

Lunr.js

Client-side full-text search library for fast, offline queries

Lura

Build ultra‑fast, extensible API gateways with Go middleware

Lynis

In-depth security auditing and hardening for UNIX-based systems