Langflow's tech stack
What does Langflow use?
Langflow (langflow.org) uses at least 20 tools we can see from public records, including Vercel for hosting, Google Workspace for email and documents, Discord for customer support and Google Analytics for analytics. Last checked .
“Langflow is a low-code AI builder for agentic and retrieval-augmented generation (RAG) apps. Code in Python and use any LLM or vector database.”
- Founded
- 2023
- Company page
- Tools found
- 20
- Categories
- 14
- Layers
- 5 of 5
- Changes seen
- 1
Langflow's stack, layer by layer
Each tool links to the other companies we've found using it. The label says what kind of public trace gave it away.
Edge & Hosting
4 tools, where the bytes are served from
Application
5 tools, what the product is built with
Data & Observability
2 tools, what they measure and store
Monitoring
Analytics
Go-to-market
4 tools, how they find and keep customers
Ads & Pixels
Support & Docs
Company Ops
5 tools, what the team runs on day to day
Email Delivery
Workspace
Security & Compliance
What changed at Langflow
Recent starts and stops
- StoppedProofpoint
Langflow tech stack FAQ
What tools does Langflow use?
As of November 2026, runsonwhat has found 20 tools at Langflow (langflow.org) in public records. Edge & Hosting: Fastly, Vercel and NS1. Application: Google Fonts, Adobe Fonts and Next.js. Data & Observability: Google Analytics and Sentry. Go-to-market: Google Ads, Marketo and Discord. Company Ops: Google Workspace, SendGrid and Let's Encrypt. Last checked November 2, 2026.
What cloud does Langflow run on?
Langflow uses Vercel for hosting and cloud infrastructure, alongside GitHub Pages, according to runsonwhat (November 2026). runsonwhat found Vercel through a subdomain that points at Vercel. Vercel is used by 51,370 companies runsonwhat tracks.
What email provider does Langflow use?
Langflow uses Google Workspace for email and office software, according to runsonwhat (November 2026). runsonwhat found Google Workspace through email records that authorize Google Workspace. Google Workspace is used by 412,497 companies runsonwhat tracks.
What does Langflow use for customer support?
Langflow uses Discord for customer support and documentation, according to runsonwhat (November 2026). runsonwhat found Discord through Discord code on langflow.org. Discord is used by 7,021 companies runsonwhat tracks.
What analytics tools does Langflow use?
Langflow uses Google Analytics for analytics, according to runsonwhat (November 2026). runsonwhat found Google Analytics through Google Analytics code on langflow.org. Google Analytics is used by 906,070 companies runsonwhat tracks.
What marketing software does Langflow use?
Langflow uses Marketo for marketing, according to runsonwhat (November 2026). runsonwhat found Marketo through Marketo code on langflow.org. Marketo is used by 9,047 companies runsonwhat tracks.
Does Langflow use Google Fonts?
Yes. runsonwhat found Google Fonts at Langflow through Google Fonts code on langflow.org. Google Fonts is a Media & UI tool used by 825,800 companies runsonwhat tracks.
Does Langflow use AI tools?
Yes. runsonwhat has found OpenAI at Langflow; OpenAI, for example, through a DNS verification record for OpenAI. AI services called only from servers leave no public trace, so Langflow may use more AI tools than these.
Has Langflow changed tools recently?
Yes. On runsonwhat's rechecks, Langflow stopped using Proofpoint (latest on November 2, 2026). A change counts only between two checks of langflow.org done the same way.
How does runsonwhat know what Langflow uses?
runsonwhat reads public records only. Of the 20 tools at Langflow, 9 were found through code on langflow.org, 6 through DNS records, 2 through email records, 2 through subdomains that point at the vendor and 1 through website configuration files. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and langflow.org about monthly.
We read public traces only: DNS and email records, certificate logs, website code and published subprocessor lists. A tool is listed when a direct record backs it up, and dropped when a recheck no longer finds it. Is this your company? See how to opt out.