SkillProof vs HackerRank vs Codility
How SkillProof compares to HackerRank and Codility: SkillProof evaluates real GitHub work, while HackerRank and Codility run timed coding tests. Here's when to use each.
HackerRank and Codility are well-known technical assessment platforms built around timed coding challenges. SkillProof takes a different approach: it evaluates a developer's real, already-shipped work on GitHub. This page compares the approaches so you can choose the right tool — or combine them.
The core difference
HackerRank and Codility measure how a candidate performs on standardized problems under time pressure. SkillProof measures what a developer has actually built over years of real projects.
Timed tests are good at filtering for algorithmic fluency. Evidence from real work is good at judging engineering judgement, depth, and the ability to ship maintainable software.
When timed assessments fit
- High-volume early-funnel screening where consistency matters.
- Roles where data-structures-and-algorithms proficiency is central.
- Candidates with little or no public code.
When evidence-from-work fits
- Senior and specialist roles where judgement and depth matter more than puzzle speed.
- Candidates with a substantial public footprint on GitHub.
- Reducing false negatives: strong engineers who interview or test poorly under artificial time pressure.
Using them together
Many teams pair the two: use a timed assessment as a baseline filter, then use SkillProof to understand the depth and real-world skill behind the candidates who pass — and to surface strong engineers whose evidence lives in their repositories rather than in a test score.
Frequently asked questions
Is SkillProof a replacement for HackerRank or Codility?
It can be, for roles where real shipped work is the best signal. Many teams use both: timed tests for breadth-of-funnel filtering and SkillProof for depth and evidence-based decisions.
Does SkillProof require candidates to take a test?
No. SkillProof analyzes public GitHub activity (and optional supporting signals), so there is no separate timed test for the candidate to complete.