1. Capture
Screenshot the problem statement, your code pad, or a whiteboard diagram from wherever you're looking at it: LeetCode, HackerRank, CoderPad, CodeSignal, or a real interview panel. No plugin, extension, or account connection is required.
Coding Copilot · As of July 2026
OphyAI with LeetCode, HackerRank, CoderPad and CodeSignal: how it works
Yes, OphyAI's Coding Copilot works alongside any coding platform, including LeetCode, HackerRank, CoderPad, and CodeSignal, because it is vision-based. You capture a screenshot of the problem or pad, and it streams back an approach, working code, and a complexity explanation. No plugin, browser extension, or account connection to those platforms is required.
TL;DR: The Quick Answer
OphyAI's Coding Copilot works alongside LeetCode, HackerRank, CoderPad, and CodeSignal through a screenshot workflow, not a plugin or API integration. Capture a screenshot of the problem, pad, or diagram, and it streams back an approach, working code, and a complexity explanation, no matter which platform is on your screen. OphyAI has no official integration, partnership, or affiliation with LeetCode, HackerRank, CoderPad, or CodeSignal. It's built for practice and preparation; live, proctored assessments are governed by that platform's and your employer's own rules.
How the screenshot workflow works
Three steps, no setup on the platform side.
2. Streamed approach and code
Coding Copilot streams back a suggested approach, working code in your chosen language, and a complexity explanation (time and space) beside what you're looking at. Pick a model for the session: Standard, Advanced, or Technical (15 credits), with Technical positioned for coding and whiteboard-style interviews.
3. Follow-up questions
Ask follow-ups in the same session, such as why that approach, what the edge cases are, or whether there's a better solution, the way you would with an interviewer. The session keeps the context of the screenshots you've already shared.
Platform by platform
What each platform is typically used for in hiring, and how the screenshot workflow applies when you're practicing with it.
LeetCode
Practice library and problem styleLeetCode is a problem library candidates use to drill algorithms and data structures on their own time. It's also the informal source for much of the "LeetCode-style" problem phrasing that companies reuse in their own coding rounds.
When you're grinding a LeetCode problem, screenshot the problem statement or your in-progress code and send it to Coding Copilot. You'll get a streamed approach, working code, and a complexity breakdown, the same review structure a mock interviewer might walk you through, without leaving the tab.
For repeated practice, Copilot scheduling lets you line up sessions ahead of a real interview, and Question Bank lets you save the problem types you keep coming back to.
HackerRank
Coding assessments used in hiring pipelinesCompanies commonly use HackerRank to run coding assessments as part of a hiring pipeline, often timed and sometimes proctored, either before or instead of a live interview round.
To practice HackerRank-style challenges on your own time, screenshot the prompt and Coding Copilot streams an approach and working code the same way it would for any other coding problem. This is a practice aid, not a way around a proctored assessment; see "Practice vs. live use" below for where that line sits.
CoderPad
Shared live coding editor for interviewsCoderPad is a shared, real-time code editor companies use to run live technical interviews, where a candidate writes and often runs code while an interviewer watches or reviews the pad afterward.
Screenshot the pad during a mock session, run with a friend or as an OphyAI mock coding practice, and Coding Copilot returns an approach and code beside it. That's useful for rehearsing the live, collaborative format before the actual interview.
CodeSignal
Automated assessments and live interviewsCodeSignal is used by companies for both automated coding assessments and live interview formats as part of technical hiring.
The same screenshot workflow applies for practice: capture a CodeSignal problem while you work through it on your own, and Coding Copilot streams back a solution approach and code so you can compare it against what you wrote before moving on.
OphyAI has no official integration, partnership, or affiliation with LeetCode, HackerRank, CoderPad, or CodeSignal. These platform names are used only to describe how the screenshot workflow applies when you're practicing on them.
Read this before your interview
Practice vs. live use
There are two different situations here, and the workflow is the same but the context isn't.
Practice. Screenshotting a LeetCode problem while you're grinding on your own, or running a mock coding session (with OphyAI or with a friend) using CoderPad or a similar shared editor, is what this workflow is built for. There's no assessment on the line, and the point is to build reps.
Live assessment use. If you're in a proctored HackerRank or CodeSignal assessment, or a live CoderPad interview that's part of an actual hiring process, you're responsible for following that platform's terms and your employer's stated rules about outside tools. Some employers explicitly prohibit AI assistance in assessments; others don't address it at all. OphyAI doesn't market Coding Copilot as undetectable or stealth software, and it makes no claims about bypassing proctoring. Where and how you use it during a live assessment is on you.
For a fuller discussion of where that line sits and how candidates and employers actually think about it, see Is using AI in interviews ethical.
System design and whiteboards too
The screenshot workflow isn't limited to code. Drop in a photo of a whiteboard sketch or a system design diagram, and Coding Copilot returns a component-level review covering data flow, scaling considerations, and trade-offs, the same way it handles a LeetCode-style problem screenshot.
That makes it useful for practicing whiteboard-style rounds, whether the actual diagram lives on a physical whiteboard, a virtual one, or a tool like Excalidraw or Miro, since the input is a picture either way.
See System Design CopilotFrequently Asked Questions
OphyAI's Coding Copilot works alongside LeetCode and HackerRank, but not through any official integration or plugin. It's vision-based: screenshot a LeetCode problem or a HackerRank challenge, and Coding Copilot streams back a suggested approach, working code, and a complexity explanation in your chosen language. There's no account connection to either platform, no browser extension to install, and no partnership between OphyAI and LeetCode or HackerRank. It's a practice and preparation tool, available on OphyAI's Premium plan.
OphyAI's Coding Copilot works with CoderPad and CodeSignal the same way it works with any coding surface: by screenshot, not by API integration. Capture the pad or the problem screen, and Coding Copilot returns an approach, code, and complexity notes beside it. OphyAI has no official integration, partnership, or affiliation with CoderPad or CodeSignal. This works best for practice sessions and mock interviews; live, proctored assessments are governed by that platform's and the employer's own rules.
No. OphyAI does not build or offer a browser extension or plugin for LeetCode, HackerRank, CoderPad, CodeSignal, or any other coding platform. Coding Copilot works entirely through screenshot capture: you take a picture of the problem, pad, or diagram in front of you, and the AI streams back a response in a separate window. Nothing installs into or attaches to the coding platform itself, which is also why there is no plugin to detect or disable.
OphyAI's Coding Copilot streams a solution approach, working code, and a complexity explanation within seconds of a screenshot, which makes it real-time in the sense of fast turnaround during a practice or mock session. OphyAI does not market Coding Copilot as undetectable or stealth software, and it makes no claims about bypassing proctoring or monitoring. For any live, proctored assessment or interview, you're responsible for following that platform's terms and your employer's stated policy on outside tools.
Yes. Screenshotting a LeetCode problem while you're grinding practice sets is exactly the kind of use case Coding Copilot is built for. You capture the problem statement or your in-progress code, and it streams back an approach, working code, and a complexity breakdown, similar to what a mock interviewer would walk you through. You can also run full mock coding sessions in OphyAI directly, then use LeetCode separately to drill the problem types that came up.
Yes. Coding Copilot isn't limited to algorithm problems since it works from whatever you screenshot. A SQL query prompt, a schema diagram, or a database design question gets the same treatment as a LeetCode-style problem: a streamed approach, a working query or answer, and an explanation of the reasoning. There's no separate setup for SQL questions specifically; the vision-based workflow handles it the same way it handles any other coding or technical screenshot.
Practice on any coding platform, screenshot first
Coding Copilot is on OphyAI's Premium plan ($59/mo, 500 credits): 15 credits per session, streamed approach and code, and a Technical model tuned for coding and whiteboard rounds.