From the screen to the Solution tab
CoderPad, LeetCode, a PDF of the assignment — hit ⌥C and Vizir reads the screenshot, then writes the code and an approach you can open your answer with.
Use case
A coding interview where the solution shows up before the panic does
LeetCode-style screens, live coding rounds, pair programming — every coding interview has the same moment: the problem loads and a timer starts in your head. Vizir switches that timer off: press ⌥C, then ⌥↩ — it reads the problem straight off your screen, and a couple of seconds later the Solution tab holds working code and the approach. The overlay stays out of browser tab and window sharing — and the typing and the talking are still all you.
What it looks like
A play-by-play example
A screening call, a shared editor, the first-unique-character problem — here's how it goes, line by line.
InterviewerOpen the problem: return the index of the first non-repeating character in the string.
VizirSolution → “I'll go through the string twice. First pass, I count how many times each character appears, in a dictionary. Second pass, I return the index of the first character with a count of one. That's O(n) time and O(1) space — the dictionary never holds more than the alphabet.”
YouTwo passes: counts into a dictionary first, then I find the first character with a count of one — O(n).
InterviewerWhy O(n) and not O(n²)?
VizirExplanation → “Each pass over the string is linear — n steps. Dictionary lookups are O(1) and don't change the order, so it's O(n) overall — there's no square in there.”
YouBoth passes are linear and lookups are constant time — O(n) end to end.
What Vizir does in this scenario
Asked to explain the code? You will
The interviewer points at a loop and asks what it's for — ⌥↓ walks the lines, ⌥⇧↓ selects the ones in question, and ⌥E breaks down what they do and what they cost.
Catches every follow-up, verbatim
Vizir transcribes the interviewer and you on separate channels, so a follow-up like “what if the string is empty?” lands in context — and the next hint answers exactly that.
Out of browser screen shares
Share a tab or a window in Meet or web Zoom and the overlay isn't in it; on Windows it's hidden from native clients too (no guarantee for every capture method). On a native Zoom or Teams client on macOS 15+? The hints move to your companion phone.
Quick questions
Which programming languages does it cover?
Python, JavaScript/TypeScript, Java, C++, Go and the rest of the usual stack. Vizir picks the language up from the problem statement and the code on your screen.
Is it fast enough to keep up?
The answer lands a couple of seconds after ⌥↩ — including on a ⌥C screenshot. While you're still talking through the approach, the code is in the Solution tab.
What if the problem is dictated, not shown on screen?
The transcript catches it by ear — press ⌥↩ and Vizir builds the solution from what was said. Screenshots are only for problems that live on the screen.
Walk into your next live coding round with the solution at hand
3 days and 30 minutes of speech free — no credit card required. Install Vizir ahead of time and run a practice problem through it before the real one.