The sccn org is the home of EEGLAB — a widely used EEG processing toolbox — together with its ~150-plugin ecosystem, the EEGPrep Python port, the NEMAR/NSG data infrastructure, Lab Streaming Layer (real-time acquisition), BIDS tooling, and two decades of research code.

This README is a starting point for new contributors: it outlines important and most active repositories, the EEGLAB plugin landscape, and the inactive repositories.

Status legend: 🟢 active (≤90d) · 🟡 maintenance (≤12mo) · 🟠 dormant (>12mo) · ⚫ archived · ⬜ empty

"Important" combines three signals: adoption (stars), foundational role, and current activity. Some widely used repositories have not had a commit in years but remain central (core algorithms, components bundled into EEGLAB, or the standard tool in their area), so the section is split into actively developed (§1a) and foundational but stable/dormant (§1b). LOC is git-tracked source lines (own code; vendored or bundled code is noted). EEGLAB plugins are also catalogued in §2.

The 13 repositories with recent commit activity.

¹ eeglab LOC includes bundled plugin submodules (clean_rawdata, dipfit, EEG-BIDS, firfilt, ICLabel, …); the core toolbox alone is ~100k. ² eegprep own src/ is ~82k; ~150k including tests/examples. ³ liblsl own src/+include/ is ~14k; the tree carries ~170k more lines of vendored lslboost/thirdparty. ⁴ labstreaminglayer is a super-repo of git submodules (~300 lines of glue in the super-repo itself; each app/library lives in its own submodule). ⁵ sccn.github.io is mostly Markdown/content (not counted as code); the ~2.2k is HTML/JS.

Most recent activity is concentrated in eegprep (516 commits in 90 days, well ahead of the next repo at 34), alongside eeglab, the LSL libraries, nemar_reanalysis, and the website.

Repositories that are not actively developed but remain widely used or central to EEGLAB. Several are also EEGLAB plugins and appear again in §2.

Much of the org is the EEGLAB plugin ecosystem — standalone toolboxes that extend EEGLAB. Most are feature-complete and see little ongoing change; a few are actively maintained. Sorted by stars; the full list (all families) is in repo_inventory.csv.

Forks bundled as plugins (not separate development lines): firfilt (FIR filtering), zapline-plus (line-noise removal). Dozens of smaller single-purpose plugins (std_*, NIMA, groupSIFT, PACT, fMRIb, neuroscanio, nwbio, …) are listed in repo_inventory.csv.

About 95 repositories are dormant, archived, or empty. The ones below are the clearest candidates for archival or consolidation; they are listed for reference, not as a decision.

Some inactive repositories are still widely used or foundational (BCILAB, xdf, SIFT, amica, ICLabel, …). These are listed in §1b rather than here, since inactivity alone does not make a repository a cleanup candidate.

Scope note: Several headline lab projects are not in the sccn org — EEG-Dash lives at github.com/eegdash/EEGDash; EEG Many Artifacts and EEG+fMRI have no public sccn repo. See all_sccn_repos_summary.md for details.

LOC computed 2026-06-24 from git-tracked source files in the local clones. All other metrics from the 2026-06-21 inventory (git log/shortlog + gh api). Star/issue counts are live GitHub values at generation time; raw commit totals are inflated by forks/snapshots.