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With AI, Everyone is a Dev. EveryDev.ai ©
    1. Home
    2. Developers
    3. e2e

    e2e

    e2e is the verification layer for agentic coding. It runs end-to-end tests on web and mobile apps with your own infrastructure and the model you choose, so you find bugs before they ship to users.

    Visit Website

    At a Glance

    1Tool Listed
    2Products
    55Tool Views
    5Capabilities
    Discussions
    San Francisco, CaliforniaHeadquarters
    2026Est.
    6Employees
    $1.2MRaised
    Focus Areas
    Automated Testing
    Coding
    Test Generation
    Browser Automation
    Connect
    Latest News
    TesterArmy renamed to e2e, the verification layer for agentic codingNov 3, 2026
    Introducing e2e: open source agentic testing for web, iOS, and AndroidOct 1, 2026
    Markets
    • Software engineering and QA teams
    • Startups and scale-ups
    • Seed-stage through Series C companies
    • Web application developers
    • +3 more

    AI Tools by e2e

    (1)
    View e2e
    e2e tool icon

    e2e

    Verification Layer for Agentic Coding

    Automated TestingBrowser AutomationTest Generation+1 more

    Discussions

    No discussions yet

    Be the first to start a discussion about e2e

    Latest News

    11/03/2026

    TesterArmy renamed to e2e, the verification layer for agentic coding

    e2e.com
    10/01/2026

    Introducing e2e: open source agentic testing for web, iOS, and Android

    e2e.com
    09/15/2026

    TesterArmy raises $1.2M to build the next generation of software testing

    e2e.com
    09/09/2026

    TesterArmy in August: Discovery Runs, MCP, Linear and Jira Tickets

    e2e.com

    Products & Services

    2
    e2e
    October 1, 2026

    The verification layer for agentic coding. Runs end-to-end tests on web and mobile apps with your own infrastructure and the model you choose. Free and open source (Apache-2.0).

    TesterArmy hosted platform (legacy)
    2026

    The former hosted TesterArmy platform closed sign-ups on November 2, 2026 and is scheduled to shut down on January 15, 2027.

    Market Position

    e2e is the verification layer for agentic coding, running end-to-end tests on web and mobile apps with your own infrastructure and the model you choose.

    Leadership

    Founders

    SR

    Szymon Rybczak

    Co-founder and CEO; React Native contributor and conference speaker. Y Combinator describes him as the youngest-ever React Native contributor at 16, a maintainer of open-source libraries with more than 3 million weekly downloads, and a former v0 iOS contributor at Vercel. He previously worked at Callstack.

    OK

    Oskar Kwaśniewski

    Co-founder and CTO; React Native core contributor with 100+ merged PRs and creator of React Native visionOS, Bottom Tabs and Liquid Glass. Y Combinator says he created 5+ open-source libraries with over 2.5 million downloads and worked with Vercel, Meta and AT&T; he previously worked at Callstack.

    Executive Team

    SR

    Szymon Rybczak

    Co-founder & CEO

    React Native contributor, open-source developer-tools maintainer and former Vercel v0 iOS contributor; previously worked at Callstack.

    OK

    Oskar Kwaśniewski

    Co-founder & CTO

    React Native core contributor and open-source library creator; previously worked with Vercel, Meta, AT&T and Callstack.

    Board of Directors

    PK
    Pete Koomen
    Y Combinator Primary Partner

    Founding Story

    The founders say they started TesterArmy after becoming frustrated that QA was the slowest part of shipping: manual testing is slow and scripted tests become brittle as interfaces change. Their initial vision was an army of AI testers that could click, type, navigate and verify real user journeys from plain-language instructions, without requiring source-code access or maintained selectors.

    Business Model

    Revenue Model

    Free and open source (Apache-2.0). Run e2e with your own infrastructure and the model you choose.

    Pricing Tiers

    Open Source
    Free

    Free and open source under Apache-2.0; bring your own infrastructure and model.

    Target Markets

    Industries & Segments
    • Software engineering and QA teams
    • Startups and scale-ups
    • Seed-stage through Series C companies
    • Web application developers
    • Mobile application developers, especially React Native and Expo teams
    • Teams shipping AI-generated applications
    Use Cases
    • Regression testing before deployment
    • Testing web and mobile user flows without writing or maintaining selectors
    • Pull-request and preview-deployment quality gates
    • CI testing of deployed URLs and iOS/Android builds
    • Production monitoring on a schedule
    • Exploratory UX and rendering checks that scripted tests may miss
    Notable Customers
    • Resend
    • bolt.new
    • Nando's
    • Novu

    Quick Facts

    Headquarters
    San Francisco, California, United States
    Founded
    2026
    Entity Type
    Inc.
    Employees
    6
    Total Funding
    $1.2 million
    Investors
    Y Combinator, AIP Seed
    Office Locations
    San Francisco
    Warsaw

    Funding History

    Pre-seed$1.2 million
    September 15, 2026
    Y Combinator
    AIP Seed
    Eight Capital
    Script Capital

    History & Milestones

    November 3, 2026

    TesterArmy renamed to e2e, the verification layer for agentic coding. The hosted platform closed sign-ups on November 2, 2026 and is scheduled to shut down on January 15, 2027.

    October 1, 2026

    Introduced e2e, an open-source Apache-2.0 agentic end-to-end testing framework for web, iOS and Android.

    September 15, 2026

    Announced a $1.2 million pre-seed round backed by Y Combinator, AIP Seed, Eight Capital, Script Capital and angels.

    August 26, 2026

    Introduced unbox-ai, an open-source token, latency and trace explorer for AI-agent runs.

    July 22, 2026

    Introduced Scout, an open-source API-testing CLI for AI coding agents.

    Key Capabilities

    5
    End-to-end tests for web and mobile apps
    Verification for agentic coding
    Bring your own infrastructure
    Choose your own model
    Free and open source under Apache-2.0

    Integrations & Partnerships

    Platform Integrations

    • Web and mobile app testing
    • Bring your own infrastructure and model
    • GitHub: https://github.com/tester-army/e2e

    Key Partnerships

    Y Combinator accelerator
    GitHub integration for pull-request checks and comments
    Vercel preview-deployment integration

    Connect

    Website
    e2e.com
    GitHub
    tester-army/e2e
    X / Twitter
    @e2e_inc
    LinkedIn
    e2e-inc

    AI Topics

    4

    e2e focuses on these topics:

    Automated Testing(1)
    Coding(1)
    Test Generation(1)
    Browser Automation(1)
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