Best Open WebUI Alternative (2026) | Onyx vs Open WebUI Comparison
The best Open WebUI alternative
Onyx goes beyond AI chat with enterprise search across 40+ tools, permission-aware RAG, managed cloud, and SSO. Everything you need to deploy AI across your organization.
| Feature | Onyx | Open WebUI |
|---|---|---|
| Open-source (MIT license) | Yes | Custom restrictive license |
| Managed cloud offering | Yes | No |
| Integrated Company Knowledge | +33 more 40+ indexed enterprise connectors | Manual file upload + vector DB config |
| Permission syncing from source systems | Yes | No |
| Model-agnostic (any LLM) | Yes | Yes |
| Custom agents with actions (MCP/OpenAPI) | Yes | Tools, Functions, Pipelines + MCP support |
1 Open WebUI changed its license in April 2025 from BSD-3 to a custom "Open WebUI License" that requires mandatory branding retention and a CLA for contributions. This license is not OSI-approved open source.
2 Open WebUI supports RAG via vector database, but requires manual document upload and significant configuration. There are no native connectors to automatically sync data.
Pricing Comparison
Onyx
Self-host for free
Open WebUI
Self-host for free
Try Business edition on our Cloud ($20/user/month). 14-day free trial. No credit card required.
Enterprise edition adds SLAs, dedicated support, and white-labeling.
Self-host only—no managed cloud. Enterprise license required to remove branding for 50+ user deployments. Opaque pricing for enterprises.
Detailed Comparison
Licensing: MIT vs. Restrictive Custom License
Onyx
Onyx's community edition is MIT-licensed — the gold standard for open source. Fork it, modify it, embed it in your product, white-label it. No branding requirements, no CLA, no strings attached. The enterprise edition adds SAML SSO, advanced permissions, and dedicated support.
Open WebUI
Open WebUI changed its license in April 2025 from BSD-3 to a custom "Open WebUI License." You are prohibited from removing or modifying Open WebUI branding in any deployment with 50+ users unless you purchase an enterprise license. This effectively prevents meaningful forks and forces commercial users to either keep the Open WebUI brand or pay. The license is not OSI-approved.
Managed Cloud vs. Self-Host Only
AI Platform vs. Chat UI
Permission-Aware Access Control
Production Readiness & Scale
Developer Experience
Meet Your Team Where They Work
Which is Right for You?
Onyx is best for
- Teams of any size that want a better AI chat experience with multi-model support across OpenAI, Anthropic, Google, AWS Bedrock, Azure, and more
- Anyone who wants AI connected to their data: 40+ connectors to Slack, Google Drive, Confluence, Jira, GitHub, and more with automatic syncing and permission controls
- Teams that don't want to manage infrastructure: Onyx Cloud is fully managed at $20/user/month, or self-host for free
- Organizations that need AI everywhere: web app, CLI, Chrome extension, desktop app, Slack bot, Discord bot, and embeddable widget
- Teams of all sizes that value a true MIT license with no branding restrictions
Open WebUI is best for
- Individual hobbyists wanting a self-hosted ChatGPT-like UI for local LLMs with no need for team features
Frequently Asked Questions
- Is Open WebUI the same as Onyx?
- Is Open WebUI really open source?
- Can I add enterprise search to Open WebUI?
- Does Open WebUI have a managed cloud option?
- Should I choose Open WebUI or Onyx?
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Best Open WebUI Alternative (2026) | Onyx vs Open WebUI Comparison | Onyx AI