Running processes
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Zero-Footprint Stealth Mode
Runs quietly inside system processes. Invisible to Activity Monitor, Task Manager and system audits. No traces, no logs.
AI Stealth Assistant for Developers
Coding Interviews on Easy Mode.
LeetCode is for practice. ShadowCoder is for the job.
merge-intervals.ts
Sharing// 56. Merge Intervals
// Merge all overlapping intervals.
function merge(intervals: number[][]): number[][] {
}
merge([[1, 3], [2, 6], [8, 10], [15, 18]]);
// expected: [[1, 6], [8, 10], [15, 18]]Approach
Sort by start, then merge each interval into the last one when they overlap.
intervals.sort((a, b) => a[0] - b[0]);const out: number[][] = [];for (const [start, end] of intervals) { const last = out.at(-1); if (last && start <= last[1]) { last[1] = Math.max(last[1], end); } else { out.push([start, end]); }}return out;Time O(n log n)Space O(n)
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Works on the video calls and coding platforms companies actually use.
- ZoomUndetectable
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Features
Stealth delivery with senior-level refactoring, review, and test-solving built in.
Screen recordingShadowCoder
function merge(intervals) {
// your code
}ShadowCoderNot captured by screen share or recording.
Screen-Recording & Proctoring Proof
The overlay stays invisible to Zoom, Google Meet, Teams and proctoring tools, even while you share your screen.
Take screenshotCtrlH
SolveCtrl↵
Stealth modeAltS
Focus stays in your IDEZero-Focus Interaction
Click, scroll and copy without leaving your IDE or browser. Your OS never registers a window switch.
Screenshot 1
class LRUCache {
Screenshot 2
get(key) { ... }
Screenshot 3
put(key, val) {
Multi-Screenshot Refactors and Senior-Level Solves
Capture 2-4 screenshots of one task. ShadowCoder merges the context, finds real bugs, refactors the code and explains the solution.
Choose Your Plan
Pick the plan that fits your interview prep. Both include full access to ShadowCoder.
Basic Plan
Practice & ace your first interviews
$9.99
90 credits
Enough for 1-2 technical interviews
- AI-powered code assistance
- Invisible on screen share
- Screenshot-based problem solving
- Priority email support
One-time payment
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Your AI interview companion
$24.99/month
250 credits
Refreshed every month
- Everything in Basic
- Voice mode: AI listens & answers live
- Advanced AI for coding & system design
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Frequently Asked Questions
Everything you need to know about using ShadowCoder during technical interviews
ShadowCoder is an invisible desktop overlay that sits on top of your screen during technical interviews. It operates in two modes: Code Mode for coding interviews (captures screenshots of your screen and generates AI-powered solutions) and Voice Mode for system design and behavioral interviews (captures audio from Zoom, Google Meet, or Microsoft Teams and provides real-time AI analysis). The overlay is completely invisible to screen-sharing software, so your interviewer will never see it.
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