Retool
Med Trafficretool.com
Overview
Retool is a low-code platform that enables businesses to rapidly build, deploy, and manage internal tools and applications. It connects to any database, API, or LLM and includes AI-powered app generation capabilities. The platform is widely used by engineering and operations teams to build dashboards, admin panels, CRUD apps, and other internal tools.
By the Numbers
Founders
David Hsu studied computer science at MIT and previously worked at Palantir and Stripe before founding Retool. He identified the recurring pain point of engineers spending significant time building internal tools instead of core product features.
He started building Retool as a side project after noticing that companies like Stripe, Airbnb, and others all had engineers manually rebuilding similar internal dashboards and admin panels from scratch.
Alex Eckles co-founded Retool alongside David Hsu and has led the technical architecture of the platform. His engineering background informed the design of Retool's flexible, composable component model.
The founding team was part of Y Combinator's Winter 2017 batch, which gave Retool early validation and introductions to its first enterprise customers.
Funding
Competitors
Open-source alternative with strong self-hosting and community; less polished UI but free to start
Open-source low-code platform with a similar UI builder; more cost-effective for small teams
Open-source with built-in database and emphasis on data privacy; targets smaller teams
Focuses on no-code internal tools with tighter security controls for enterprise compliance
Developer-first scripts and workflows for internal tooling; acquired by Airtable in 2023
Enterprise-focused with strong audit logging and security; competes directly in mid-market
Revenue & Model
Hiring Signals
Tech Stack
Notable Customers
Web Presence
Verified from public records — not AI-estimated.
Trackers & Analytics
Scanned from the HTML retool.comserves — scripts a tag manager injects later won't appear here.
How They're Doing
Retool is in a strong growth phase, serving over 10,000 teams globally and continuing to expand its enterprise customer base in industries like fintech, logistics, and manufacturing. The company has invested heavily in AI features, including LLM integrations and AI-powered app generation, positioning itself ahead of the low-code AI wave. Recent product updates have focused on mobile app support, workflows, and database features.
●Launched Retool AI features including LLM-connected components and AI app generation
●Expanded Retool Mobile for building internal mobile apps
●Surpassed 10,000+ teams using the platform globally
Prognosis
Retool is well-positioned to capitalize on the enterprise demand for AI-augmented internal tooling as companies seek to move faster with fewer engineering resources. The company faces increasing competition from open-source alternatives and the growing sophistication of AI coding assistants that may reduce the appeal of low-code platforms. Strategic expansion into workflows, databases, and AI agents could widen its moat significantly.
●AI-native internal app generation could dramatically lower time-to-deploy for enterprise teams
●Retool Database and Workflows expand the platform beyond UI building into a full internal app ecosystem
●Growing demand for secure, auditable internal tools in regulated industries like banking and healthcare
●Open-source competitors (Appsmith, Tooljet) offer free alternatives that attract cost-sensitive customers
●AI coding assistants (GitHub Copilot, Cursor) may reduce demand for low-code by making custom coding faster
●Market crowding from no-code/low-code platforms including Glide, Softr, and Bubble
Recent News
Retool launches AI-powered app generation allowing teams to describe and auto-generate internal tools
Retool Blog
Retool expands LLM integrations enabling direct connections to OpenAI, Anthropic, and other AI providers
Retool Blog
Retool discloses SMS phishing security incident affecting cryptocurrency customer accounts
TechCrunch
Retool announces Retool Database, a built-in PostgreSQL database for internal apps
Retool Blog
Retool raises Series C at $3.2B valuation led by Sequoia Capital
The Information
Controversies
Some developers raised concerns about Retool's pricing model changes and seat-based licensing, which created friction for teams scaling usage across large organizations.
Retool disclosed a security incident involving a social engineering attack on employees via SMS phishing, which led to unauthorized access to some customer accounts, particularly affecting crypto-related customers.
Fun Facts
- 01Retool was built because David Hsu noticed that engineers at every company he worked at — including Stripe — spent weeks rebuilding the same types of internal dashboards over and over.
- 02Retool went through Y Combinator in Winter 2017 and initially struggled to find product-market fit before pivoting to focus exclusively on internal tooling.
- 03The 2023 SMS phishing attack that hit Retool was notable because attackers specifically targeted crypto companies, highlighting the value of internal tools access as an attack vector.
Timeline
Released AI-powered app generation and expanded LLM integrations across the platform
Launched Retool Database (built-in PostgreSQL); disclosed SMS phishing security incident
Launched Retool Mobile for building internal mobile applications
Raised Series C at ~$3.2B valuation led by Sequoia Capital, reaching 10,000+ teams
Raised Series B; accelerated growth during COVID-19 as remote teams needed faster internal tooling
Raised Series A funding; grew to hundreds of paying business customers
Launched publicly and began gaining traction with engineering teams at fast-growing startups
Retool founded by David Hsu and Alex Eckles; accepted into Y Combinator W17 batch