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FREE CODE REVIEW ASSESSMENTS · FOR HIRING TEAMS

The take-home looks great.
But how does the candidate think?

Give candidates code with issues you’ve deliberately prepared. See what they catch, how they explain it, and which changes they would make before shipping.

Free for hiring teams. Free for candidates.
Upload your repository, share invitations, and review submissions—all for free, forever.

Candidate reviewILLUSTRATIVE EXAMPLE
Simplify invoice lookupmain invoice-refactor
1 file
src/api/invoices.ts +1 −2
18 async function getInvoice(req, res) {
19− const invoice = await findForAccount(
20− req.params.id, req.user.accountId);
19+ const invoice = await findById(req.params.id);
20 return res.json(invoice);
21 }
Candidate commentLine 19

This drops the account check. Could a signed-in user fetch another account’s invoice by changing the ID?

Keep the account-scoped lookup and add a test for cross-account access before merging.

You know the issue. Their explanation starts the conversation.

A POLISHED SUBMISSION IS ONLY PART OF THE PICTURE

When AI can produce the submission,
assess the understanding.

A polished take-home leaves you with another task: work out how much the candidate understands. You have to explore their implementation before you can meaningfully challenge their decisions.

Start with code you already know. Prepare the bugs and structural problems, record private reference notes, and give candidates a focused review task. Their findings become the starting point for your interview.

MAKE THE REASONING VISIBLE

Know the code.
Assess their understanding.

You know the intended behavior and the deliberate problems. Use that shared context to ask specific questions about the candidate’s reasoning.

01 / UNDERSTANDING

Can they explain the behavior?

Ask them to trace the code, surface its assumptions, and explain how a specific issue would affect a real user.

02 / PRIORITIZATION

Do they know what matters?

See whether they distinguish a blocking issue from a preference. Ask which fix they would make first and what trade-offs it introduces.

03 / REASONING

Can they defend their decision?

Change a requirement or challenge an assumption in the follow-up interview. Ask how they would adapt their recommendation and explain it to the author.

HOW IT WORKS

Plant the problems.
See who spots them.

Prepare the issues, record your expectations, and observe their review. Then discuss the reasoning behind their findings.

Core platform: free forever
  1. Illustrative repository upload with intentional authorization, duplication, and edge-case issues.
    01 PREPARE THE EXERCISE

    Upload a repo with intentional issues.

    Prepare a test repository with bugs, structural problems, or questionable design choices in the proposed branch. Upload a ZIP containing its .git folder and both branches, then preview the comparison.

    Or start from a public template
  2. Illustrative private owner comment marking a missing authorization check in the code.
    02 MARK YOUR REFERENCE POINTS

    Know what you’re looking for.

    Mark problematic lines with private reference comments. Note the issue, why it matters, and what useful feedback would address. Candidates see the code, while your reference notes stay private.

    Finalize the comparison before sending invitations.
  3. Illustration of a candidate reviewing code with 24:38 remaining on the countdown.
    03 INVITE YOUR CANDIDATES

    Set the time. Let them review.

    Set a time limit—for example, 30 minutes—and share individual invitation links. Candidates review the changes, leave comments, and submit their findings with a visible countdown.

    The review closes automatically when time runs out.

Turn their findings into interview questions.

Read their comments against the issues you prepared. Ask why an issue matters, how they would fix it, and what would change their recommendation. You already know the code, so you can focus the conversation on their understanding.

Create a free assessment

YOUR CODE. YOUR ENGINEERING STANDARDS.

Make the assessment
feel like the job.

Choose a change that reflects the role: an API refactor, a payment flow, or a frontend state update. Give every candidate the same context and use your private reference comments to keep the discussion focused.

Public templates offer a starting point. Your own scenarios and review expectations make the exercise relevant to your team.

BUILT FOR THE AI CONVERSATION

Assess the judgment behind the answer.

AI can help write code. It can also help review it. Set clear expectations about tool use, then ask candidates to explain and defend their feedback. This assessment gives you something concrete to discuss; it does not prove who produced an answer.

THE PRACTICAL DETAILS

Before your first invitation.

Can I set a time limit for candidates?

Yes. Set a time limit for the exercise, such as 30 minutes. Candidates see a countdown while they review, and the review closes automatically when time runs out.

Is the core platform free forever?

Yes. The complete core code review workflow is free forever for hiring teams and candidates. Upload your Git repository ZIP, create an assessment, share individual invitations, and inspect candidate feedback without paying. Candidates can review code, save comments, and submit their work for free too.

Why is the platform free?

We offer powerful AI analysis through optional paid plans. The core platform—uploading repositories, creating assessments, inviting candidates, and reviewing their comments and submissions—will remain free forever. You do not need a paid plan to run a code review assessment.

What does a candidate actually do?

They sign in, accept their individual invitation, and review the proposed code changes in their browser. They can explore the diff and the base and proposed versions of changed files, save comments on lines or ranges, and submit an optional summary and decision. They can resume their review before submitting.

Can candidates still use AI?

Yes. This is not an AI detector or a proctored assessment. Set your tool-use expectations in the task instructions. The review gives you specific comments and decisions to discuss afterward: ask the candidate to explain a risk, defend a recommendation, or describe what would change their mind.

Do I need to create an assessment from scratch?

You can browse public templates and clone one into your own independent assessment, or upload your own Git repository ZIP. Add task instructions, choose the base and proposed branches, preview the comparison, and save private reference comments before inviting candidates.

How do I upload my own code?

Upload a ZIP containing a real Git repository, including its .git folder and both branches. The assessment compares the base branch tip with the proposed branch tip. A standard source-only GitHub download ZIP will not work. GitHub account integration is not required.

Who evaluates the candidate?

Your hiring team does. You can inspect saved comments in their code context, including work in progress, and read the submitted summary and decision. Private reference comments help you record what to look for. The product does not automatically grade, rank, or make hiring decisions.

Are reference comments visible to candidates?

No. Owner reference comments are private. Each candidate has a separate session and their own comments. Once submitted, that candidate’s review becomes read-only. Finalize the branch comparison before inviting people, since existing sessions follow the assessment’s selected comparison.

MEET YOUR NEXT CODE REVIEWER

Know the code.
Understand the candidate.

Upload a ZIP. Invite your candidates. Review their feedback. All for free, forever.

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