# What does Open WebUI use?

Open WebUI (openwebui.com) shows public evidence of 13 tools, according to runsonwhat (last checked 2026-10-31).

## Edge & Hosting

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Cloudflare](https://www.runsonwhat.com/reverse/cloudflare) | CDN & Edge | DNS records, Website code |  |
| [Amazon Web Services](https://www.runsonwhat.com/reverse/aws) | Hosting & Cloud | Custom domain |  |

## Application

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Google Fonts](https://www.runsonwhat.com/reverse/google-fonts) | Media & UI | Website code |  |
| [Tailwind CSS](https://www.runsonwhat.com/reverse/tailwind) | Frontend | Website code |  |
| [SvelteKit](https://www.runsonwhat.com/reverse/sveltekit) | Frontend | Website code |  |

## Data & Observability

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Google Analytics](https://www.runsonwhat.com/reverse/ga) | Analytics | Website code |  |

## Go-to-market

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Google Ads](https://www.runsonwhat.com/reverse/google-ads) | Ads & Pixels | Website code |  |
| [Google Ad Manager](https://www.runsonwhat.com/reverse/google-ad-manager) | Ads & Pixels | Website code, Website config |  |
| [Google AdSense](https://www.runsonwhat.com/reverse/google-adsense) | Ads & Pixels | Website code |  |
| [Discord](https://www.runsonwhat.com/reverse/discord) | Support & Docs | Website code |  |

## Company Ops

| Tool | Category | Evidence | Since |
|---|---|---|---|
| [Google Workspace](https://www.runsonwhat.com/reverse/google-workspace) | Workspace | Email records |  |

## FAQ

### What tools does Open WebUI use?

As of October 2026, runsonwhat has found 13 tools at Open WebUI (openwebui.com) in public records. Edge & Hosting: Cloudflare and Amazon Web Services. Application: Google Fonts, Tailwind CSS and SvelteKit. Data & Observability: Google Analytics. Go-to-market: Google Ads, Google Ad Manager and Google AdSense. Company Ops: Google Workspace. Last checked October 31, 2026.

### What cloud does Open WebUI run on?

Open WebUI uses Amazon Web Services for hosting and cloud infrastructure, according to runsonwhat (October 2026). runsonwhat found Amazon Web Services through a subdomain that points at Amazon Web Services. Amazon Web Services is used by 146,175 companies runsonwhat tracks.

### What email provider does Open WebUI use?

Open WebUI uses Google Workspace for email and office software, according to runsonwhat (October 2026). runsonwhat found Google Workspace through email records that authorize Google Workspace. Google Workspace is used by 406,772 companies runsonwhat tracks.

### What does Open WebUI use for customer support?

Open WebUI uses Discord for customer support and documentation, according to runsonwhat (October 2026). runsonwhat found Discord through Discord code on openwebui.com. Discord is used by 6,300 companies runsonwhat tracks.

### What analytics tools does Open WebUI use?

Open WebUI uses Google Analytics for analytics, according to runsonwhat (October 2026). runsonwhat found Google Analytics through Google Analytics code on openwebui.com. Google Analytics is used by 898,092 companies runsonwhat tracks.

### Does Open WebUI use Google Fonts?

Yes. runsonwhat found Google Fonts at Open WebUI through Google Fonts code on openwebui.com. Google Fonts is a Media & UI tool used by 820,275 companies runsonwhat tracks.

### Which companies have a tech stack similar to Open WebUI's?

The companies with the stacks most like Open WebUI's are 724 Care, Jaid, Kunga and Logitech G, according to runsonwhat (October 2026). Each shares 2 to 10 tools with Open WebUI, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

### How does runsonwhat know what Open WebUI uses?

runsonwhat reads public records only. Of the 13 tools at Open WebUI, 8 were found through code on openwebui.com, 2 through DNS records, 1 through email records, 1 through website configuration files and 1 through subdomains that point at the vendor. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and openwebui.com about monthly.


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Source: runsonwhat, https://www.runsonwhat.com/company/openwebui.com (updated October 2026). Counts are companies with direct public evidence of the tool (DNS records, certificates, website code, a real-browser crawl, subprocessor lists), so they are lower bounds. Methodology: https://www.runsonwhat.com/methodology.