
The AI coding agent for building ambitious software
Otto Engineer records 0 monthly visits with 0% month-over-month growth and Free pricing. testRigor records 105,865 monthly visits with -2.7% growth and Free Trial, Contact for Pricing, Free pricing.

An autonomous AI coding sidekick that iterates and tests your code in safe containers.
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | otto.engineer | testrigor.com |
| Pricing Model | Free | Free Trial, Contact for Pricing, Free |
| Monthly Visits | 0 (0) | 105.87K (105,865) |
| MoM Traffic Delta |
|---|
| 0 (0%) |
| -2.95K (-2.7%) |
| Primary Market & Share | 🌐 Global (—) | 🇺🇸 United States (24.9%) |
|---|
| Direct Visits / mo | 0 | 55.49K |
|---|
| User Rating | 4.2 | 4.5 |
|---|
| Supported Platforms | Website | Website |
|---|

An autonomous AI coding sidekick that iterates and tests your code in safe containers.
The agent edits files, runs the project in a sandboxed container and reacts to real execution output rather than guessing.
Code runs in isolated web containers, so experiments, package installs and scripts stay contained and safe.
It works with JavaScript and TypeScript projects, including npm-based dependencies, which covers a large share of modern web development.
Instead of only suggesting snippets, Otto carries a task through to a running result, handling setup and fixes along the way.

Write end-to-end test automation in plain English, no code required
Build and maintain end-to-end tests using free-flowing plain English. testRigor interprets your instructions exactly as written and executes them, with no coding required.
Tests adapt to UI changes automatically, so you spend far less time fixing broken selectors and scripts. Customers report near-zero maintenance versus Selenium and Appium.
Cover web, iOS and Android mobile, native Windows desktop, API, email, SMS, phone calls, 2FA, and mainframe testing from a single tool.
Generate tests directly in testRigor or through Claude Code using MCP and Skills, and import existing manual test cases to get started quickly.

The AI coding agent for building ambitious software
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Context-aware AI that plans, codes, tests, and documents across your engineering workflows
The AI coding agent for building ambitious software
Google's agent-first development platform for building and shipping software with AI agents
A spec-driven AI IDE and agent platform that plans, builds, reviews, and verifies real engineering work.
The coding agent that learns your coding taste
Free / Open-sourceRun many coding agents in parallel, each in its own worktree
SpecialistAn AI IDE and coding agent that works on your project, not just your cursor
Agent orchestration platform for your whole software development lifecycle
Context-aware AI that plans, codes, tests, and documents across your engineering workflows