Open WebUI vs NextChat compared for 2026 — features, license, ease of use, performance and which one to choose. ChatGPT-style interface over any model vs Lightweight ChatGPT-style UI, deploys in one click.
Updated regularly · curated by OpenSourceAI.tech
| Spec | Open WebUI | NextChat |
|---|---|---|
| Category | Self-hosted chat UI | Self-hosted chat UI |
| Type | Self-hosted web UI | Web / desktop chat UI |
| License | BSD-3-Clause | MIT |
| Runs locally | Self-hosted | Partial |
| Primary language | Svelte | TypeScript |
| Ease of use | Intermediate | Beginner |
| Best for | teams that want a shared web UI over local models | a personal ChatGPT-style UI deployed in minutes |
| GitHub stars | 144.4k | — |
| Feature | Open WebUI | NextChat |
|---|---|---|
| Self-hostable | ✓ | ✓ |
| Document RAG | ✓ | ✗ |
| Multi-user | ✓ | ✗ |
| Plugins / tools | ✓ | ✓ |
| Voice (STT/TTS) | ✓ | ✗ |
| Mobile / PWA | ✓ | ✓ |
| Criterion | Open WebUI | NextChat |
|---|---|---|
| Popularity | 5.0 | n/a |
| Maintenance | 5.0 | n/a |
| Ease of use | 3.5 | 5.0 |
| Privacy | 4.5 | 3.5 |
| License freedom | 5.0 | 5.0 |
Scores are computed automatically from public signals — GitHub stars (popularity), recent commit activity (maintenance), license type (freedom), local-first design (privacy) and onboarding complexity (ease of use). Indicative, not a verdict.
Open WebUI is a self-hosted, ChatGPT-style web interface that runs on top of Ollama or any OpenAI-compatible API, with chat history, model switching and document RAG.
NextChat is one of the most-starred open chat UIs: a fast ChatGPT-like interface for OpenAI, Claude, Gemini and local endpoints, deployable on Vercel in a minute or as a desktop app.
Open WebUI is self-hosted web UI, while NextChat is web / desktop chat UI. Their licenses differ (BSD-3-Clause vs MIT), which matters if you ship a commercial product. Open WebUI leans more intermediate-friendly, whereas NextChat is more suited to beginner users. They also differ in how they run (Self-hosted vs Partial). In short, Open WebUI fits teams that want a shared web UI over local models, and NextChat fits a personal ChatGPT-style UI deployed in minutes.
Choose Open WebUI for teams that want a shared web UI over local models. Choose NextChat for a personal ChatGPT-style UI deployed in minutes.
There is rarely one winner — many setups use both. The right pick depends on your hardware, your team's skills, and whether you value simplicity or control.
NextChat is generally the easier of the two to get started with, while Open WebUI rewards more setup with more control.
Open WebUI is free and open source (BSD-3-Clause), and NextChat is free and open source (MIT). Neither charges for the core software.
Open WebUI: self-hosted · NextChat: partial. Both can be used without sending your data to a third-party cloud where their setup allows.
Choose Open WebUI for teams that want a shared web UI over local models. Choose NextChat for a personal ChatGPT-style UI deployed in minutes.
Browse thousands of open-source AI tools, models and projects — all curated in one place, updated daily.
Explore the directory →