A full-featured browser IDE with 40+ languages, live execution, and collaborative viewing for technical interviews.
Interviewers watch candidates code in real time — see every keystroke, thought process, and approach as it unfolds.
Test cases run automatically against submitted code and scores are generated instantly — no manual review needed for objective challenges.
Prelim's live coding environment gives candidates a professional-grade IDE without any installation. It runs entirely in the browser, supports 40+ languages, and executes code instantly in an isolated sandbox — so candidates can focus on the problem, not the tooling.
Interviewers and assessors get a live view of everything. Watch code being written, tests being run, and problems being solved in real time — with a full replay available after the session ends.
The final submission tells you what a candidate produced. The live pair-view tells you how they got there. Watch their approach unfold in real time — the dead ends, the optimisations, the debugging — and understand their thinking, not just their output.
Interviewers can annotate, ask questions, and collaborate during the session. All activity is logged for the record.
From interview start to score — all in one environment, no context-switching required.
Send a single link. The candidate opens it in their browser and is instantly in a fully configured coding environment — no downloads, no setup.
Candidates write, run, and test their solution live. Interviewers watch in real time, see every change, and can interact throughout the session.
After submission, automated test results, session replays, and AI-generated insights are immediately available to the hiring team.
From environment launch to scored submission — the full live coding experience.
Zero setup. Full-featured IDE. Real-time insights — available to your team right now.