Open WebUI
Open WebUI is an open-source, self-hosted ChatGPT-like interface that works with Ollama, OpenAI, and any OpenAI-compatible API. Supports multimodal conversations, RAG with documents, web search, code execution, and user management.
- Location
- Remote, USA
- Raised
- $2.5M
- Stage
- Seed
- Founded
- 2023
- Category
- Open Source
- Funding
- VC-backed
- Team
- 10-50
Funding figures as of Jul 2025 · not independently verified
Founders of Open WebUI
- Timothy Jaeryang Baek
Investors backing Open WebUI
- Y Combinator
Frequently asked questions
What does Open WebUI do?
Open WebUI is an open-source, self-hosted ChatGPT-like interface that works with Ollama, OpenAI, and any OpenAI-compatible API. Supports multimodal conversations, RAG with documents, web search, code execution, and user management.
Where is Open WebUI based?
Open WebUI is based in Remote, USA.
When was Open WebUI founded?
Open WebUI was founded in 2023.
How much has Open WebUI raised?
Open WebUI has raised $2.5M in their Seed round as of Jul 2025.
Who founded Open WebUI?
Open WebUI was founded by Timothy Jaeryang Baek.
Who has invested in Open WebUI?
Open WebUI is backed by Y Combinator.
How Open WebUI would pitch themselves
○ Auto-generated01Target customer
Any LLM — the core audience Open WebUI's product is built around.
02Problem they solve
Open WebUI is an open-source, self-hosted ChatGPT-like interface that works with Ollama, OpenAI, and any OpenAI-compatible API. Supports multimodal conversations, RAG with documents, web search, code execution, and user… The category has historically been served by tools that miss the modern workflow this product is built around.
03Key differentiator
Open WebUI differentiates on chatgpt-style ui for any llm. Backed by Y Combinator, $2.5M raised — the company has resources + validation to compound this thesis. Founded by Timothy Jaeryang Baek.
04Go-to-market strategy
Early-stage GTM — typically product-led growth (free tier or low-friction onboarding) paired with founder-led sales for the first 100 customers. Heavy content marketing + community presence on Twitter/X, LinkedIn, and category-specific Slack groups.