webapp.io

Acquired

Build webapps faster with 10x better CI/CD + preview envs

Summer 2020Founded 20204 peopleToronto, ON, Canada; Remote

webapp.io ↗LinkedIn ↗X ↗GitHub ↗See on the Idea Map B2B momentum

About

Webapp.io's custom hypervisor makes webapp CI/CD, E2E testing, and preview environments as simple as writing a Dockerfile. If your team is building a webapp + using github/gitlab/bitbucket, please reach out!

From their website

as of Jun 7, 2026webapp.io ↗

SaaSSubscription · Starter, Pro, Team; monthly/annual billing with discounts; custom/enterprise options available. Priced per member with tiered feature access and additional bandwidth/retention options in higher plans.

Webapp.io is a DevOps platform that accelerates building and deploying modern web apps by providing full-stack preview environments, fast CI/CD, and integrated testing. It emphasizes 10x faster pipelines with caching, Layerfiles, and parallel E2E testing for web applications.

The product converts a repository into a full-stack preview environment for every branch using a simple Layerfile configuration. It caches pipeline steps to skip unnecessary work, supports parallel end-to-end tests, and provides auto-generated, full-stack previews for each commit. Users connect via a guided installer, define build steps in a Layerfile (Dockerfile-like), and push code to trigger builds that run in isolated environments, with integrations for Cypress, Reflect.run, Docker, and more. The platform offers hosting for a custom domain, dashboards for pipeline and test results, and scalable preview environments with retention and bandwidth options.

Who it’s for: Developers and DevOps teams building modern web applications who need fast, reliable CI/CD, full-stack preview environments, and integrated testing for every git push.

Features

Full-stack previews for every branch
Layerfile-driven build and deployment steps
Advanced caching to accelerate pipelines
Parallelized end-to-end testing
Hosting for custom domains
Integrations with Cypress, Reflect.run, and more
Analytics and per-test optimization

Company has joined Harness; multiple pricing tiers; advertised growth programs and enterprise/custom plans; active documentation and pricing pages.

Founders · 2

Colin ChartierFounder

UToronto🎓 University of Toronto

Technical founder, full-stack, system design, & devops Triple major (CS/stats/math) from University of Toronto

LinkedIn ↗

Lyn ChenFounder

Prev. Dev Tools Founder (acquired), now doing human flourishing projects across emerging adulthood (18-25) and K-12.

LinkedIn ↗

Launch

Launched on Y Combinator · Jun 2022

View launch post ↗

Webapp.io is often 10x faster than creating full-stack environments in a regular CI like Github Actions

Webapp.io lets developers create full-stack environments for each pull request by reusing memory snapshots to rapidly spin up VMs based on a Layerfile configuration. It targets web app stacks on any Linux-based environment, enabling environments to be built in seconds and accelerated testing compared to traditional CI or cloud providers.

From the original launch (Jun 2022) — may be outdated.