Code Copilot · hidden on screen share

Screenshot the problem.
Get the optimal answer.

Press Ctrl+Alt+S on any coding prompt. Code Copilot reads it with OCR and a vision model, then streams the best solution (approach, intuition, a dry run, and Big-O) across four AI models you switch between instantly.

Start free See pricing

LeetCode, HackerRank, CodeSignal & CoderPad · Windows & macOS · from $0

leet.cs · Two Sum · streaming 🛡 hidden from capture
Grok DeepSeek Gemini Local · instant

Approach

One pass with a hash map. For each number, check whether its complement target − n was already seen. Store value to index as you go.

// C#: one-pass hash map
public int[] TwoSum(int[] nums, int target) {
    var seen = new Dictionary<int, int>();
    for (int i = 0; i < nums.Length; i++) {
        int need = target - nums[i];
        if (seen.ContainsKey(need))
            return new int[] { seen[need], i };
        seen[nums[i]] = i;
    }
    return System.Array.Empty<int>();
}
// Time O(n) · Space O(n)
Reads prompts straight off
LeetCodeHackerRankCodeSignalCoderPadTake-home PDFs

The pipeline

Capture, read, stream. One hotkey.

No copy-paste and no window switching. From keypress to a working solution in the overlay, the whole loop runs on one shortcut.

You capture the prompt

Hit Ctrl+Alt+S to screenshot whatever is on screen. Grab several shots for a long or multi-part problem, then press Enter to send them together as one capture.

It reads with OCR and vision

Tesseract OCR pulls the text while the raw screenshot goes to a vision model in parallel. Test cases, tables, and constraints that OCR garbles are still read correctly straight from the image.

It streams the optimal solution

The answer appears token by token in the overlay: approach, intuition, thought process, a worked dry run, and the Big-O for time and space, with the full solution in your language.

Built for the coding screen

Everything the round throws at you, handled.

Code Copilot is tuned for timed coding rounds: fast capture, four models to cross-check, and a session that survives a crash.

Hotkey screenshot

One press of Ctrl+Alt+S grabs the prompt. No copy-paste, no switching windows, no leaving the coding tab.

OCR plus vision, together

Tesseract extracts the text and a vision model reads the image at the same time, so nothing in the prompt gets lost.

Four models, instant switch

Grok, DeepSeek, Gemini, and a local knowledge-base model run in parallel. Flip between their answers with a keystroke.

Local offline model

The local knowledge base returns matches instantly with no network round-trip, a fully offline path whenever you want one.

Multi-capture batching

Grab several screenshots for a long problem, then press Enter to send them as one. Full context, one answer.

Crash-proof session cache

Every answer is written as it streams. If the app dies, it restores your captures and solutions on the next launch.

Screen-share safe

On your screen. Off the recording.

The overlay opts out of screen capture at the OS level. The interviewer's shared view and any recorder see the coding tab exactly as it is, while the answer card is composited out of the frame.

  • ✦ Excluded from Zoom, Teams, Meet, Discord, OBS & PrintScreen
  • ✦ Stays out of the taskbar and Alt-Tab so it never leaks
  • ✦ A live shield badge tells you the truth: green when hidden
  • ✦ Every answer streams with a dry run and Big-O so you can reason out loud, not just paste
answer anatomy🛡 excluded
// every capture returns the same shape:
approach   "one-pass hash map"
intuition  "trade space for a single scan"
steps      "iterate, look up complement, store"
dry_run    "[2,7,11,15], target 9 -> [0,1]"
solution   "full code, your language"
big_o      time "O(n)"  space "O(n)"
4models in parallel
2readers: OCR + vision
1hotkey to capture
$0to start

Questions

How Code Copilot handles the screen.

How does it capture a coding prompt?

Press Ctrl+Alt+S to screenshot whatever is on screen. Code Copilot runs the image through Tesseract OCR to pull the text and, at the same time, sends the raw screenshot to a vision model, so diagrams, test cases, and formatting that OCR misses are still read accurately.

Which platforms does it work with?

It works with LeetCode, HackerRank, CodeSignal, and CoderPad. Because it reads the screen rather than integrating with a site, it also works on take-home PDFs and anything else with a visible prompt.

What are the four models?

Grok, DeepSeek, Gemini, and a local knowledge-base model run in parallel, and you can switch between their answers instantly. The local model returns cached matches immediately with no network round-trip, which doubles as a fully offline path.

Can I send more than one screenshot?

Yes. Multi-capture lets you grab several screenshots for a long or multi-part problem and press Enter to send them together, so the model gets the full context in a single answer.

What happens if it crashes mid-problem?

A crash-proof session cache writes every answer as it streams. If the app dies, it restores your captures and solutions on the next launch, so a worked problem is never lost.

Is it visible during a screen share?

No. The overlay opts out of capture at the OS level, so it renders on your monitor but is composited out of the frame Zoom, Teams, Meet, and recorders receive. It also stays out of the taskbar and Alt-Tab, and a live shield badge shows the current protection state.

Practice the optimal answer, not the panic

Bring Code Copilot to your next round.

Start free in a minute. Capture a problem, read the approach, and learn the pattern before the timer starts.

Start free See Interview Copilot