PrincsterAI logo

Princster autonomously explores your web app, records every interaction, and builds runnable end-to-end tests from that evidence — not from assumptions.

Request a pilotSee how it works
01Why usDiff

Stop guessing.
Start proving.

End-to-end tests are the most valuable and the most fragile layer of quality control. Princster builds them from evidence, not assumptions.

Without PrincsterWritten by hand, from assumptions

Tests describe what people think the app does, not what it actually does.

With PrincsterExplored from your real app

An autonomous crawler walks through the app like a user and records every interaction.

Without PrincsterBroken by every UI change

Maintenance quietly consumes QA capacity.

With PrincsterGenerated only from recorded evidence

The model can't cite an element that was never measured. Deterministic rules decide what gets in.

Without PrincsterA suite that lags behind the product

The tests meant to guard the product systematically trail behind it.

With PrincsterEvery verdict traceable

Each result links to a recorded run: step timeline, screenshots, video and a machine-readable report.

02How it worksExplore → Generate → Prove

Explore. Generate. Prove.

From a crawl of your real app to a verdict you can trace.

  1. EXPLORE

    Explore & measure

    Timelapse
    Princster · crawl

    An autonomous crawler maps your app and records every action, its context and its outcome. A safety gate blocks destructive actions, network guards keep exploration on target, and read-only mode writes nothing at all.

    Mode
    read-only
    Guard
    destructive actions blocked
    Scope
    network guards on target
  2. GENERATE

    Generate with guarantees

    Princster · generate

    An LLM proposes tests over the measured catalogue under a formal grammar: it can't cite an element that wasn't measured, and every claim must rest on recorded evidence. The model proposes; deterministic rules decide.

    Grammar
    formal, evidence-bound
    Source
    measured catalogue only
    Decides
    deterministic rules
  3. RUN

    Run & prove

    Princster · runs

    Tests run in a zero-trust, disposable sandbox with no credentials. Every verdict traces back to a recorded run: step timeline, screenshots, video and a machine-readable report.

    Sandbox
    zero-trust, disposable
    Credentials
    none
    Artifacts
    timeline · screenshots · video · report
03FeaturesBuilt for evidence

Built for tests you can trust.

Explore your real app, generate tests from evidence, and prove every verdict.

GENERATION RULES

The model proposes. Rules decide.

Tests are generated under a formal grammar. The LLM can't cite an element that was never measured, and every claim has to rest on recorded evidence. Predefined rules decide which elements and outcomes the AI may use.

generate / checkout-flowVALIDATING
REJECTUnknown element "#promo-banner" — not measured
ALLOWbutton[data-testid='checkout-submit'] — from crawl
PROOFAssertion backed by step 14 · screenshot + response
> Test accepted · every claim traceable to a recorded run
SAFE EXPLORATION

Crawl your app without touching it

An autonomous crawler maps your app and records every action, its context and its outcome. A safety gate blocks destructive actions, network guards keep exploration on target, and read-only mode writes nothing at all.

crawl / staging.yourapp.comCRAWLING
GATEBlocked destructive action: "Delete account"
GUARDRequest outside target scope dropped
MODERead-only · 0 writes
> Exploration finished · 0 side effects
EVIDENCE

Every verdict traces back to a run

Tests run in a zero-trust, disposable sandbox with no credentials. Each verdict is linked to a recorded run: step timeline, screenshots, video and a machine-readable report.

run / sandbox-ephemeralRUNNING
SANDBOXDisposable · no credentials mounted
TRACEStep timeline recorded
REPORTreport.json · screenshots · video
> Verdict linked to recorded run
FULL CONTROL

Prefer to write tests yourself?

AI is optional. Compose your own tests in the Test Builder, step by step, and keep every decision in your hands.

Princster · builder
Models
Hosted or local language models
Hosting
Pilot on our infrastructure or yours
Output
Runnable tests + machine-readable reports
04AboutPRINCIPIA · TBU

Built by engineers.
Grounded in research.

Princster is developed by PRINCIPIA SOLUTIONS together with a university research partner. Our principle: AI can propose, but only evidence gets a test through.

Proposed by the model4
  • click button[data-testid="checkout-submit"]Allowed

    measured during crawl

  • assert text "Order confirmed"Allowed

    backed by step 14 · screenshot

  • click #promo-bannerRejected

    element was never measured

  • assert total == "€42.00"Rejected

    no recorded evidence

Deterministic
rules
checkout-flow.spec2 / 4
  • 01click button[data-testid="checkout-submit"]
  • 02assert text "Order confirmed"

Illustrative example

05IntegrationsRegistry

Plugs into the tools you already use.

Princster fits into your existing pipeline, tracker and test tooling instead of replacing them.

integrations.json5 tools · 0 live
  • file_type_gitlabGitLabSource controlPlanned
  • JiraIssue trackerPlanned
  • YouTrackIssue trackerPlanned
  • SeleniumTest toolingPlanned
  • PostmanAPI testingPlanned
Missing your tool? Pilot partners help decide what we build next —tell us what you use.
06RoadmapToday · OCT 2026

From alpha to production.

Beta opens to customers in November 2026, and pilot partners get in first.

roadmap.yml2 / 4 done
  1. Sep 2025

    R&D kickoff

    Research and development begins.

  2. Jun 2026

    Alpha launched

    The first working version of the platform goes live.

  3. Nov 2026 · NEXT

    Beta

    Customer onboarding starts. Pilot partners get priority access.

  4. Spring 2027

    Production release

    Preliminary plan.

market.json1

Test automation market, 2025

~$29B

Growth vs. 2024

+15%

AI test automation market, 2025

~$9B

Expected annual growth to 2032 (AI segment)

>22%

1 The Business Research Company, Automation Testing Global Market Report 2025; MarketsandMarkets, AI Test Automation Market (2026).

07ContactPilot program

Become a pilot partner

We'll explore your web app and build your first test suite.

Access
Priority beta access
Support
Direct from the development team
Influence
A say in where the product goes next
new-pilot-request.form* required