RepoFOMO

What RepoFOMO is

Every week we scan the entire public GitHub ecosystem and surface the top ~1,500 fastest-moving repositories — ranked by how fast they are gaining stars right now, not by absolute popularity. A small repo growing quickly will outrank a large repo that has plateaued. The goal: surface what developers are paying attention to this week, before it shows up everywhere else.

How FomoRank is calculated

FomoRank is a blended momentum score combining four signals:

1. 7-day new stars — captures this-week momentum.
2. 30-day new stars — captures monthly trend.
3. 60-day new stars — smooths out short-term spikes.
4. Fork velocity — new forks in the same windows; a stronger signal of intent than stars.

Each signal is percentile-normalised across the full set of top movers so repos of different sizes are comparable. The four percentiles are then blended (roughly 60% momentum, 40% raw star rate) into a single FomoRank score between 0 and 100. The Leaderboard uses FomoRank by default.

How the top ~1,500 are chosen

The starting point is every public repository on GitHub. From that universe we keep the union of:

• The top movers surfaced by the weekly event-stream aggregation across all public GitHub activity.
• Repositories already on RepoFOMO from prior weeks (so we can track week-over-week movement).
• A long-tail of fast-growing repos picked up by the fork-velocity filter.

Archived, deleted, and private repositories are dropped from each rebuild. The final ~1,500 are whichever repositories have the strongest current momentum across the entire GitHub ecosystem.

Glossary

FomoRank

The blended momentum score described above. Higher means hotter right now.

Total ★

Lifetime star count from GitHub at the time of the last refresh.

7d new ★ / 30d new ★ / 60d new ★

New stars gained in the rolling N-day window ending on the refresh date.

7d% / 30d% / 60d%

The new-star count expressed as a percentage of the repo's total stars at the start of the window.

Forks

Total fork count, and (when shown) new forks in the same rolling windows.

Age

How many days since the repository was first created on GitHub.

Momentum gauge

The small dial on the star-history tooltip — visualises the rate of change at the end of the chart.

What RepoFOMO is not

• Not a real-time feed — data is at most one week old.
• Not a quality signal — high star velocity correlates with attention, not code quality.
• Not a search engine — we surface the fastest movers across all of GitHub, but we don't index every public repo.

Citations & reuse

RepoFOMO data may be freely cited for journalism, research, and analysis. When citing, please link to the relevant homepage URL and note the refresh date shown on the page.