GitHub gems: open-source software from small creators1,155 projects

HahaNote is a file-based + E2EE note taking and syncing app, can sync your notes to Dropbox/WebDav Server/Github(and other git platforms), support Windows/Linux/Android.

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IPTV player for Mac, Windows, Android and Android TV: Xtream Codes and M3U, instant search, built-in mpv player, subtitles, Picture in Picture, catch-up. Open source, GPL-3.0.

Jellyfin Custom Integration for Home Assistant.

Agentless server management GUI over plain SSH.

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Memerist is a photo editing program, available on Linux.

MobiFlight is an open source project that allows you to create your own home cockpit for your favorite flight simulator in a flexible, affordable and extremely user-friendly way.

Check your agent's changes, fast. A light, native git client for macOS, Windows and Linux, built with MyGo.

ESP32 firmware for the NRSuite security research toolkit. Wi-Fi/BLE attack and capture modules (deauth, beacon spam, captive portal, BLE HID, BadUSB) over USB serial.

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A simple and minimalistic open source notes app.

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Free, open-source chemical drawing for Mac, Windows and Linux. Opens and saves ChemDraw files (CDXML, CDX). Works offline.

All in one emulator on Android!

OpenGarage: open-source WiFi-enabled garage door opener.

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Portable touchscreen SDR for M5Stack Tab5 + RTL-SDR dongles — spectrum, waterfall, FM/AM, Shortwave, ADS-B, FT8, P25, LoRa, RF tools, and Wi-Fi analysis without a PC.

Native macOS sticky notes — menubar quick capture,floating notes, Markdown, iCloud sync.

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Browse illustrations and manga.

PiperOS Tool for Android: browser, media player, device utilities, notifications and an on-device terminal.

A cross-platform image viewer which supports reading raw Luminance/YUV/RGB/ARGB/Bayer pixels data from file and rendering it.

A lightweight, opinionated, field-friendly ESP32 CYD HAM Clock.

A series of codes for conducting the quantum entanglement experiments as showcased on my YouTube Channel. Using a non-linear crystal made of Beta-Barium Borate (BBO) I am able to generate 2 entangled photon beams of…

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Sudoku, Nonogram, Minesweeper, Word Search & more. No ads, fully offline.

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Track quitting progress, milestones, journals, and recovery reminders.

Offline Japanese and Arabic dictionary for Android, with fast search, detailed entries, bookmarks, history, Yomitan format support, and Anki export.

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Free, open-source screenshot tool, screen recorder, and video editor for Mac. Auto-zoom, smooth cursor, captions, OCR, scrolling capture, and annotations. Native, private, no account.

SquachWatch is a firmware for the Cheap Yellow Display that gamifies detecting things like Flock Cameras, Trackers, Meta Glasses and so much more!

Next-generation Windows-native HDR screenshot tool — full 16-bit HDR pipeline, region snipping / clipboard history / OCR / AVIF·JXL·PNGv3 encoding / color management, natively built on WinUI 3.

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Prayer times, Adhan notifications, Qibla and the Quran for Android and iOS. Free, offline by design, no ads, no tracking. Kotlin Multiplatform.

Open-source multicloud sync, streaming, search and encrypted collaboration for Linux, Windows, macOS and Android.

Backup, restore and migrate virtual machines on UGREEN NAS with UGOS VM App integration and disaster recovery.

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Unvanquished is a real-time strategy game, available on Windows and Linux.

Local-First Personal Knowledge Management in Vanilla JS.

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Varia is a download manager, available on Windows and Linux: playlists.

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Secure offline password and identity wallet manager.

A small operating system for the ESP32-S3: easy to use, secure by default, and useful even where there is no internet.

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Free, offline voice dictation for Windows. Hold a hotkey, talk, and the text is typed into any app.

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Bulk file renamer for Linux and Windows. Stack rules — regex, case, numbering, EXIF/ID3/video metadata — and watch a live before/after preview with collisions flagged before anything moves.

Red-team wireless pentesting firmware for the ESP32. Audit WiFi, BLE, IR, Sub-GHz, 2.4 GHz, RFID.

alpha-fairy is a microcontroller program: debugging and command-line use.

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Free open-source self-hosted backup software: Windows & Linux servers and PCs, Proxmox VE, VMware ESXi and Hyper-V VMs (also failover clusters), SQL Server, PostgreSQL, MySQL, NAS and Microsoft 365.

One Bluetooth LE keyboard and mouse for three computers (ESP32-S3).

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Open-source CLI to back up a Supabase project to your own S3/R2/B2 bucket (Postgres, Auth users when your role can read them, Storage files once you add the project's Storage S3 keys), then restore-drill it to prove the…