koreader / koreader

A document viewer for e-ink readers that opens PDF, DjVu, EPUB, FB2 and other ebook formats on Kindle, Kobo, PocketBook and other devices.

qgis / QGIS

Free, open-source desktop geographic information system for viewing, editing, analyzing, and mapping spatial data on Linux, Windows, and macOS.

Autumn-27 / ScopeSentry

Distributed security asset discovery platform covering subdomain enumeration, port scanning, vulnerability scanning, and page monitoring.

jgm / pandoc

Haskell library and command-line tool that converts documents between many markup formats, such as Markdown, LaTeX, HTML, DOCX, and EPUB.

Anxcye / anx-reader

Cross-platform e-book reader for EPUB, MOBI, AZW3, FB2, TXT and PDF, built with Flutter.

aonez / Keka

A macOS and iOS file archiver that compresses and extracts files in many formats, with optional encryption.

deckerst / aves

Android gallery and metadata explorer app built with Flutter, handling images, videos, and exotic formats like multi-page TIFFs and SVGs.

hughhowey / neo

A local, distraction-free desktop word processor for writing novels, with a bookshelf library and manuscripts formatted like books as you type.

ankidroid / Anki-Android

Android app for studying Anki spaced-repetition flashcards, an official port of the Anki system.

thewhiteh4t / seeker

Hosts a fake location-permission page that captures a smartphone's GPS coordinates and device details from a visitor who clicks through.

greenshot / greenshot

Greenshot is a free Windows screenshot tool for capturing regions, windows, or full screens with annotation and export options.

AssetRipper / AssetRipper

GUI application that extracts and converts assets from Unity game files into the native Unity engine format for analysis.

nix-community / disko

Declaratively defines and applies disk partitioning, formatting, and mounting for NixOS using Nix configuration.

exiftool / exiftool

Perl library and command-line tool for reading, writing and creating metadata (EXIF, IPTC, XMP and more) across hundreds of file formats.

pglombardo / PasswordPusher

Web app for sharing passwords, text, files, and URLs via links that expire after a set number of views or time.

oxsecurity / megalinter

Runs a bundle of linters, formatters, and security scanners over a repository in CI, via GitHub Action, other CI systems, or locally.

docker-library / repo-info

Scripts that generate reports of extended metadata (licenses, layer details) for Docker Official Images.