runsonwhat

Onlook's tech stack

What does Onlook use?

Onlook (onlook.com) uses at least 12 tools we can see from public records, including Vercel for hosting, Google Workspace for email and documents, Dub for marketing and Sentry for monitoring. Last checked .

“The Developer tool for Designers”

Industry
Engineering, Product and Design
Size
1–10 employees
Based in
San Francisco, United States
Founded
2022
LinkedIn
Company page
Re-check liveVisit onlook.com
Tools found
12
Categories
9
Layers
5 of 5
Last checked
Oct 2026

Onlook'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

2 tools, where the bytes are served from

Hosting & Cloud

CDN & Edge

Application

3 tools, what the product is built with

Frontend

Data & Observability

1 tool, what they measure and store

Monitoring

Go-to-market

2 tools, how they find and keep customers

Marketing

Company Ops

4 tools, what the team runs on day to day

Email Delivery

Workspace

Collaboration

Security & Compliance

Companies like Onlook also use

Tools common among companies with a similar stack that we haven't found at Onlook.

Companies with a stack like Onlook's

Ranked by shared tools, with rare tools counting more.

More Engineering, Product and Design companies

Other Engineering, Product and Design companies we've checked.

Onlook tech stack FAQ

What tools does Onlook use?

As of October 2026, runsonwhat has found 12 tools at Onlook (onlook.com) in public records. Edge & Hosting: Cloudflare and Vercel. Application: React, Tailwind CSS and Next.js. Data & Observability: Sentry. Go-to-market: Dub. Company Ops: Google Workspace, Resend and Slack. Last checked October 18, 2026.

What cloud does Onlook run on?

Onlook uses Vercel for hosting and cloud infrastructure, according to runsonwhat (October 2026). runsonwhat found Vercel through a subdomain that points at Vercel and a DNS verification record. Vercel is used by 46,658 companies runsonwhat tracks.

What email provider does Onlook use?

Onlook 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 397,574 companies runsonwhat tracks.

What marketing software does Onlook use?

Onlook uses Dub for marketing, according to runsonwhat (October 2026). runsonwhat found Dub through a subdomain that points at Dub. Dub is used by 495 companies runsonwhat tracks.

What monitoring tools does Onlook use?

Onlook uses Sentry for monitoring, according to runsonwhat (October 2026). runsonwhat found Sentry through Sentry code on onlook.com. Sentry is used by 77,032 companies runsonwhat tracks.

Does Onlook use Cloudflare?

Yes. runsonwhat found Cloudflare at Onlook through DNS records that point at Cloudflare and email records. Cloudflare is a CDN & Edge tool used by 692,707 companies runsonwhat tracks.

Which companies have a tech stack similar to Onlook's?

The companies with the stacks most like Onlook's are HeroUI, TesterArmy, Capy and Hoplite, according to runsonwhat (October 2026). Each shares 5 to 6 tools with Onlook, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.

How does runsonwhat know what Onlook uses?

runsonwhat reads public records only. Of the 12 tools at Onlook, 4 were found through DNS records, 4 through code on onlook.com, 2 through email records and 2 through subdomains that point at the vendor. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and onlook.com 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.