6 Best TextGen Alternatives in 2026 (Open Source)
TextGen — The original local LLM interface. Text, vision, tool-calling, training, and more. 100% offline. Most feature-complete local LLM web UI with 4 inference backends, training, tool-calling, vision, and image gen — vs Ollama (CLI-focused) or LM Studio (closed source)
Short answer
- Closest match to TextGen: Open WebUI.
- Most actively developed: Open WebUI (1,515 commits in the last 90 days).
- Fastest growing: Open WebUI (+3,942 GitHub stars in the last 30 days).
- No commit in 6+ months: Open Assistant API and Langchain-Chatchat.
These 6 open-source tools do the same job. They are ordered by how closely they match TextGen, with live GitHub data so you can see which projects are actively maintained.
| Tool | GitHub stars | Stars / 30d | Last commit |
|---|---|---|---|
| TextGen(original) | 47.7k | +215 | 2026-08-17 |
| Open WebUI | 153.8k | +3,942 | 2026-09-21 |
| Ollama | 182.1k | +2,499 | 2026-10-02 |
| LibreChat | 45.2k | +1,618 | 2026-10-01 |
| Open Assistant API | 367 | +1 | 2024-12-14 |
| Langchain-Chatchat | 38.7k | +160 | 2025-11-10 |
| harbor | 3.2k | +110 | 2026-09-25 |
1. Open WebUI
User-friendly AI Interface (Supports Ollama, OpenAI API, ...)
What sets it apart: Unlike LM Studio (desktop-only, personal use), Open WebUI is a full multi-user platform with RAG, RBAC, SCIM provisioning, 9 vector DBs, and Google Drive/OneDrive integration — the most feature-complete self-hosted ChatGPT alternative
Best for: Teams wanting a self-hosted ChatGPT alternative with full data control and Ollama integration; Organizations needing enterprise-grade AI platform with LDAP/SCIM/SSO and multiple vector DB backends
2. Ollama
Get up and running with Kimi-K2.5, GLM-5, MiniMax, DeepSeek, gpt-oss, Qwen, Gemma and other models.
What sets it apart: Unlike vLLM (production server focus) or LM Studio (GUI-first), Ollama is the simplest CLI-first tool for running local LLMs with one-command setup, an OpenAI-compatible API, and the largest ecosystem of 100+ community integrations.
Best for: Developers who want to run open-source LLMs locally with zero configuration; Privacy-sensitive use cases requiring fully offline LLM inference
3. LibreChat
Open-source ChatGPT-like interface for multiple AI models, agents, and sandboxed code execution
What sets it apart: Most feature-complete self-hosted ChatGPT alternative — uniquely combines agents, MCP, code interpreter, image gen, and multi-user auth in one package, unlike single-provider UIs
Best for: Organizations wanting a private, self-hosted ChatGPT replacement; Teams needing multi-user AI platform with access control and audit
4. Open Assistant API
Open-source, self-hosted AI assistant API compatible with OpenAI and supporting LLMs, RAG, and tools
What sets it apart: Open-source OpenAI Assistant API compatible service supporting multiple LLMs via One API, with RAG, web search, and local deployment
Best for: self-hosted-openai-assistant-alternative; multi-llm-assistant-apps; enterprise-local-deployment
5. Langchain-Chatchat
Offline-deployable Chinese knowledge base Q&A with RAG and agents using LangChain and open-source LLMs
What sets it apart: The most mature Chinese-ecosystem RAG framework with complete offline capability, supporting 5+ model deployment backends (Xinference, Ollama, LocalAI, FastChat, One API) — no other solution offers this level of Chinese LLM integration with zero-cloud-dependency operation
Best for: Chinese enterprises needing offline, privacy-preserving knowledge base systems with local LLMs; Teams wanting a turnkey RAG solution with agent capabilities and multi-framework model support
6. harbor
One command brings a complete pre-wired LLM stack with hundreds of services to explore.
What sets it apart: The all-in-one local LLM stack orchestrator — spin up 30+ pre-wired services (backends, frontends, RAG, voice, images) with a single harbor up command
Best for: Developers wanting full local LLM stack without manual setup; Teams evaluating multiple inference backends side-by-side; Privacy-conscious users running AI completely locally
FAQ
- What are the best alternatives to TextGen?
- The closest open-source alternatives to TextGen are Open WebUI, Ollama and LibreChat, followed by Open Assistant API, Langchain-Chatchat and harbor. They are ranked by how closely they match what TextGen does.
- Which TextGen alternative is the most popular?
- Ollama has the most GitHub stars among TextGen alternatives, with 182,051 stars.
- Which TextGen alternative is the most actively maintained?
- By recent activity, Open WebUI (1,515 commits in the last 90 days) is the most actively developed alternative.