LeetCode vs Project Euler:Which is searched more?
In September 2026, LeetCode had more branded searches than Project Euler among coding challenge brands worldwide. LeetCode had about 3.4 million branded searches, while Project Euler had 27,100. LeetCode made up 67.5% of all coding challenge brand searches we track, and Project Euler accounted for 0.55%. These are worldwide searches for English-language branded terms.
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Is LeetCode or Project Euler more popular in search?
Compare the coding challenge brands people buy. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time.
Share of searches by month for LeetCode, Project Euler. The figures are in the table below the chart.
View monthly share of searches table
| Month | LeetCode | HackerRank | Codeforces | Codewars | Exercism | HackerEarth | HireVue | CoderPad | CodeSignal | Project Euler | Codility |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 2025 | 55.1% | 20.2% | 13.5% | 3.3% | 1.8% | 1.2% | 1.2% | 1% | 1.2% | 0.81% | 0.55% |
| Nov 2025 | 59.4% | 17.8% | 11.9% | 3.6% | 1.6% | 1.3% | 1.1% | 0.88% | 1.1% | 0.72% | 0.59% |
| Dec 2025 | 60.1% | 18% | 12.1% | 2.9% | 1.3% | 1.6% | 0.89% | 0.73% | 1.1% | 0.73% | 0.49% |
| Jan 2026 | 62.7% | 15.4% | 12.6% | 3.1% | 1.4% | 1.1% | 0.93% | 0.76% | 0.93% | 0.62% | 0.51% |
| Feb 2026 | 62.6% | 15.4% | 12.6% | 2.5% | 1.7% | 1.7% | 0.92% | 0.76% | 0.92% | 0.62% | 0.41% |
| Mar 2026 | 63.2% | 15.5% | 10.4% | 2.5% | 2.1% | 2.1% | 1.1% | 0.93% | 0.93% | 0.63% | 0.51% |
| Apr 2026 | 59.7% | 17.9% | 12% | 2.9% | 2% | 1.6% | 1.1% | 0.88% | 0.88% | 0.59% | 0.48% |
| May 2026 | 65.6% | 13.2% | 10.8% | 3.2% | 1.8% | 1.4% | 0.97% | 0.97% | 0.97% | 0.65% | 0.43% |
| Jun 2026 | 68.5% | 13.7% | 9.2% | 2.3% | 1.8% | 1.2% | 0.83% | 0.83% | 0.68% | 0.55% | 0.37% |
| Jul 2026 | 67.6% | 16.6% | 9.1% | 1.8% | 1.5% | 0.82% | 0.67% | 0.67% | 0.55% | 0.45% | 0.3% |
| Aug 2026 | 67.3% | 16.5% | 9% | 1.8% | 1.5% | 0.99% | 0.81% | 0.66% | 0.66% | 0.45% | 0.3% |
| Sep 2026 | 67.5% | 16.6% | 9.1% | 1.8% | 1.2% | 0.82% | 0.82% | 0.67% | 0.67% | 0.55% | 0.3% |
How has the LeetCode and Project Euler comparison changed over the last 12 months?
3 findings
- LeetCode was ahead of Project Euler in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, LeetCode’s share of searches among coding challenge brands worldwide moved from 55.1% to 67.5%, and its estimated monthly branded searches moved from 2.2M to 3.4M.
- Across the 12 months ending September 2026, Project Euler’s share of searches among coding challenge brands worldwide moved from 0.81% to 0.55%, and its estimated monthly branded searches moved from 33.1K to 27.1K.
How did search popularity change for coding challenge brands worldwide in September 2026?
2 changes
Estimated monthly branded searches for LeetCode worldwide rose 49.6% over 12 measured months, from 2.2M to 3.4M in September 2026.
Estimated monthly branded searches for Project Euler worldwide fell 18.1% over 12 measured months, from 33.1K to 27.1K in September 2026.
How are branded searches counted?
2 search terms
Brandwave collects information about searches that people make online using LeetCode’s and Project Euler’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.
LeetCode
1 branded search term
- leetcode
Project Euler
1 branded search term
- project euler
Other head-to-heads among coding challenge brands
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