Prelim / Products / Live Coding IDE
A real IDE, right in the browser.
Candidates work in a full editor against real repositories, with test runners and tooling — so you see how they actually build.
As close to the real job as an assessment gets.
The Live Coding IDE gives candidates a familiar environment with real repos and test suites. Sessions are recorded and scored so you evaluate process, not just the final answer.
- Full browser IDE with test runners
- Real repositories and realistic tasks
- Session replay for process insight
- Anti-cheat tuned for the AI era
207msmedian latency
Fast enough that candidates forget they're in a test.
What's inside.
Full editor
Syntax, test runners, and real tooling in the browser.
Real repositories
Work in something close to your actual codebase.
Integrity signals
Proctoring and anomaly detection built in.
Roles commonly assessed.
A sample of the job titles teams use this for.
Backend EngineerFrontend EngineerFull-Stack EngineerMobile EngineerML EngineerPlatform Engineer
Supported languages & frameworks.
The live coding environment covers the stacks your engineers actually use.
Languages
JavaScriptTypeScriptPythonJavaC#C++GoRustRubyPHPKotlinSwift
Frontend
ReactNext.jsVueAngularSvelteHTML/CSS
Backend & Data
Node.jsDjangoSpring.NETPostgreSQLMySQLMongoDBRedisGraphQLREST APIs
Cloud & DevOps
AWSAzureGCPDockerKubernetesTerraformCI/CD
Questions teams ask us.
The major languages and frameworks, plus custom environments on request.
Yes — assess candidates against a realistic slice of your real codebase.
Yes, with replay so reviewers can evaluate process, not just output.
Try the Live Coding IDE on a real task.
We'll set up an environment close to your codebase for the demo.