Sextant

Extension Developer Tools2 users

Overview

Adds a lines-of-code panel to GitHub repository pages. Total SLOC, file count, per-language breakdown.

Sextant adds a "Lines of code" panel to the right-hand sidebar of every GitHub repository page. You see total SLOC, file count, and a top-10 per-language breakdown the moment a repo page loads — no click required. Three data sources, picked automatically in this order: 1. codetabs.com (free public API) for public repos under 500 MB. Zero setup. 2. The Sextant backend at sextant.octago.nl for private repos and large repos that codetabs can't handle. Counts SLOC with the scc tool against a shallow, blob-filtered clone — accurate and fast even on multi-gigabyte monorepos. Results are cached by commit SHA. 3. A byte estimate from GitHub's languages API (labelled "≈") as a last-resort fallback if the backend is unreachable. For tiers 2 and 3 you connect GitHub once — either click "Connect GitHub" for OAuth, or paste a fine-grained Personal Access Token with Contents: Read on the repos you want Sextant to see. Tokens never leave your browser except to authenticate a single clone; the backend does not persist them. The credit line under each panel says which tier produced the number, so you always know whether you're looking at exact SLOC or a ballpark estimate. Privacy policy: https://sextant.octago.nl/privacy

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Details

Version
1.0.0
Updated
May 22, 2026
Flag concern
Offered by
Octagonl
Size
53.46KiB
Languages
English
Developer
Octagonl
103 Byewaters Watford WD18 8WH GB
Email
ncr@octago.nl
Non-trader
This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.

Privacy

Manage extensions and learn how they're being used in your organization

Sextant has disclosed the following information regarding the collection and usage of your data. More detailed information can be found in the developer's privacy policy.

Sextant handles the following:

Authentication information

Website content

This developer declares that your data is

Not being sold to third parties, outside of the approved use cases
Not being used or transferred for purposes that are unrelated to the item's core functionality
Not being used or transferred to determine creditworthiness or for lending purposes

Support

RepoWiki

5.0

Open any GitHub repo in DeepWiki, CodeWiki, and more

PR Dashboard for GitHub

5.0

Zero-config PR dashboard. View your GitHub Pull Requests directly in the side panel without API tokens.

GitHub Smart Downloader

5.0

Download GitHub repositories, folders, or selected files as ZIP archives directly from your browser.

Github Repo Trending

5.0

Chrome extension for displaying GitHub trending repository statistics

Graph Tab for GitHub

5.0

Adds a Graph tab to GitHub repositories. Renders the commit graph without requiring any permissions.

GitHub File Uploader

5.0

Upload files to GitHub, manage repositories, change visibility, and create pull requests with drag-and-drop interface

Gloc

4.3

Github Gloc - counts locs on GitHub pages

GitHub Direct Download

5.0

Download individual files or entire folders from GitHub with correct structure.

GitHub Quick Metadata

0.0

Display GitHub repository metadata including creation date, update time, and customizable fields directly in the About section

OctoCounts – GitHub SLOC & Code Statistics

5.0

See per-language SLOC, file counts, code lines, comments, and blanks directly on public GitHub repositories.

Kongyo GitHub Custom

0.0

Adds DeepWiki, Code Wiki, and Repomix buttons to GitHub repository pages.

LLM-Ready GitHub PR Review Exporter

5.0

Export GitHub PR review comments with file paths, line numbers, and code suggestions. Customize with AI-assisted review prompts.