401.AltraMayor / gatekeeper
The first open-source DDoS protection system
- dpdk
- ddos
- ddos-mitigation
- ddos-protection
- anti-ddos
+27 stars
from 1,625 · score 3.33
Trending repositories
Ranked by Attention Score: stars gained over the last 90 complete days
401–500 of 919 by Attention Score · Aug 7, 2026 – Nov 4, 2026 (UTC)
402.uNetworking / uSockets
Miniscule cross-platform eventing, networking & crypto for async applications
+27 stars
from 1,486 · score 3.33
403.hapostgres / pg_auto_failover
Postgres extension and service for automated failover and high-availability
- postgresql
- postgres
- postgresql-extension
- high-availability
- auto-failover
+27 stars
from 1,370 · score 3.33
404.aerospike / aerospike-server
Aerospike Database Server – flash-optimized, in-memory, nosql database
+27 stars
from 1,363 · score 3.33
405.kolemannix / ffc.h
Single-header c99 accelerated float/double parsing. Port of the fast_float library.
+27 stars
from 198 · score 3.33
406.eunomia-bpf / ActPlane
eBPF Information Flow Enforcement for AI Agent safety, security and effectiveness
- ebpf
- harness
- ifc
- policy-engine
+27 stars
from 82 · score 3.33
407.tjko / jpegoptim
jpegoptim - utility to optimize/compress JPEG files
- image-optimization
- libjpeg
- jpegoptim
- jpeg-encoder
+26 stars
from 1,802 · score 3.30
408.libtom / libtomcrypt
LibTomCrypt is a fairly comprehensive, modular and portable cryptographic toolkit that provides developers with a vast array of well known published block ciphers, one-way hash functions, chaining modes, pseudo-random number generators, public key cryptography and a plethora of other routines.
- libtomcrypt
- cryptography
- c
- encryption
+26 stars
from 1,775 · score 3.30
409.Moddable-OpenSource / moddable
Tools for developers to create truly open IoT products using standard JavaScript on low cost microcontrollers.
+26 stars
from 1,543 · score 3.30
410.pganalyze / libpg_query
C library for accessing the PostgreSQL parser outside of the server environment
+26 stars
from 1,468 · score 3.30
411.JuliaStrings / utf8proc
a clean C library for processing UTF-8 Unicode data
+26 stars
from 1,281 · score 3.30
412.pmacct / pmacct
pmacct is a small set of multi-purpose passive network monitoring tools [NetFlow IPFIX sFlow libpcap BGP BMP RPKI IGP Streaming Telemetry].
- netflow
- ipfix
- sflow
- bgp
- bmp
- kafka
- +14 more
+26 stars
from 1,231 · score 3.30
+26 stars
from 771 · score 3.30
+25 stars
from 14,001 · score 3.26
415.B-Con / crypto-algorithms
Basic implementations of standard cryptography algorithms, like AES and SHA-1.
+25 stars
from 2,029 · score 3.26
+25 stars
from 1,981 · score 3.26
+25 stars
from 149 · score 3.26
418.giltene / wrk2
A constant throughput, correct latency recording variant of wrk
+24 stars
from 4,614 · score 3.22
419.json-c / json-c
https://github.com/json-c/json-c is the official code repository for json-c. See the wiki for release tarballs for download. API docs at http://json-c.github.io/json-c/
- json
- c
- hacktoberfest
+24 stars
from 3,280 · score 3.22
420.liballeg / allegro5
The official Allegro 5 git repository. Pull requests welcome!
+24 stars
from 2,105 · score 3.22
421.libsndfile / libsndfile
A C library for reading and writing sound files containing sampled audio data.
- libsndfile
- audio-library
- c
- cmake
+24 stars
from 1,703 · score 3.22
422.Jafaral / bmon
bandwidth monitor and rate estimator
+24 stars
from 1,377 · score 3.22
423.datoviz / datoviz
⚡ Datoviz: high-performance GPU rendering for scientific data visualization
- visualization
- graphics
- data-visualization
- scientific-visualization
- gpu
- vulkan
- +6 more
+24 stars
from 799 · score 3.22
424.woesss / JL-Mod
J2ME emulator for Android (unofficial fork of https://github.com/nikita36078/J2ME-Loader)
- android
- j2me-emulator
- java
- opengles-android
- j2me
+24 stars
from 300 · score 3.22
425.edenhill / kcat
Generic command line non-JVM Apache Kafka producer and consumer
+23 stars
from 5,770 · score 3.18
426.h3xduck / TripleCross
A Linux eBPF rootkit with a backdoor, C2, library injection, execution hijacking, persistence and stealth capabilities.
+23 stars
from 1,969 · score 3.18
427.jeremycw / httpserver.h
Single header library for writing non-blocking HTTP servers in C
+23 stars
from 1,924 · score 3.18
+23 stars
from 1,304 · score 3.18
429.NetworkManager / NetworkManager
Read-only Mirror of the freedesktop.org repository. Please make pull requests against freedesktop.org.
+23 stars
from 494 · score 3.18
430.Mutasem-mk4 / procscope
Zero-overhead eBPF process tracer for Linux malware triage and incident response. Traces syscalls, network, and file events per-process without strace overhead.
- bpf
- ebpf
- forensics
- golang
- linux-security
- reverse-engineering
- +14 more
+23 stars
from 25 · score 3.18
431.boazsegev / facil.io
Your high performance web application C framework
- websocket-server
- http-protocol
- http-parser
- c
- concurrency
- framework
- +7 more
+22 stars
from 2,391 · score 3.14
432.luc-github / ESP3D
FW for ESP8266/ESP8285/ESP32 used with 3D printer
+22 stars
from 1,980 · score 3.14
433.vinniefalco / LuaBridge
A lightweight, dependency-free library for binding Lua to C++
+22 stars
from 1,769 · score 3.14
+22 stars
from 1,146 · score 3.14
+22 stars
from 740 · score 3.14
436.retro-esp32 / RetroESP32
Retro ESP32 is a turbo charged Odroid Go Launcher, Emulator and ROM Manager
- odroid-go
- gameboy-pocket
- gnuboy
- nesemu
- smsplusgx
- retro
- +13 more
+22 stars
from 722 · score 3.14
437.Cogmasters / concord
A Discord API wrapper library made in C
+22 stars
from 638 · score 3.14
438.Wargus / wargus
Importer and scripts for Warcraft II: Tides of Darkness, the expansion Beyond the Dark Portal, and Aleonas Tales
- help-wanted
+22 stars
from 426 · score 3.14
439.liquidaty / zsv
zsv+lib: tabular data swiss-army knife CLI + world's fastest (simd) CSV parser
+22 stars
from 393 · score 3.14
440.Cubified / tuibox
A single-header terminal UI (TUI) library, capable of creating mouse-driven, interactive applications on the command line.
+22 stars
from 322 · score 3.14
441.Xfennec / progress
Linux tool to show progress for cp, mv, dd, ... (formerly known as cv)
+21 stars
from 8,833 · score 3.09
442.jerryscript-project / jerryscript
Ultra-lightweight JavaScript engine for the Internet of Things.
- javascript-engine
- javascript
- jerryscript
- internet-of-things
- iot
- runtime
+21 stars
from 7,395 · score 3.09
+21 stars
from 6,279 · score 3.09
444.MayaPosch / NymphCast
Audio and video casting system with support for custom applications.
- streaming
- nymphcast-server
- audio
- audio-player
- video-player
- audio-streaming
- +3 more
+21 stars
from 2,553 · score 3.09
445.jedisct1 / libhydrogen
A lightweight, secure, easy-to-use crypto library suitable for constrained environments.
+21 stars
from 774 · score 3.09
446.ericstoneking / 42
Simulation for spacecraft attitude control system analysis and design
+21 stars
from 446 · score 3.09
447.andlabs / libui
Simple and portable (but not inflexible) GUI library in C that uses the native GUI technologies of each platform it supports.
+20 stars
from 10,869 · score 3.04
448.visit1985 / mdp
A command-line based markdown presentation tool.
+20 stars
from 5,261 · score 3.04
449.vanhoefm / krackattacks-scripts
The repository host gives no description.
+20 stars
from 3,517 · score 3.04
450.amerkoleci / Vortice.Windows
.NET bindings for Direct3D12, Direct3D11, WIC, Direct2D1, XInput, XAudio, X3DAudio, DXC, Direct3D9 and DirectInput.
- direct3d
- direct3d11
- direct3d12
- graphics
- gamedev
- game-development
- +8 more
+20 stars
from 1,225 · score 3.04
451.michaelrsweet / pdfio
PDFio is a simple C library for reading and writing PDF files.
- c
- pdf-generation
- pdf-document
- pdf-document-api
- pdf-document-processor
+20 stars
from 340 · score 3.04
+19 stars
from 6,025 · score 3.00
453.tboox / tbox
🎁 A glib-like multi-platform c library
+19 stars
from 5,110 · score 3.00
454.okbob / pspg
Unix pager (with very rich functionality) designed for work with tables. Designed for PostgreSQL, but MySQL is supported too. Works well with pgcli too. Can be used as CSV or TSV viewer too. It supports searching, selecting rows, columns, or block and export selected area to clipboard.
- c
- ncurses
- tui
- postgres-pager
- postgresql
- psql
- +11 more
+19 stars
from 2,724 · score 3.00
+19 stars
from 2,391 · score 3.00
456.h2o / picohttpparser
tiny HTTP parser written in C (used in HTTP::Parser::XS et al.)
+19 stars
from 2,094 · score 3.00
+19 stars
from 1,986 · score 3.00
458.Kode / Kha
Ultra-portable, high performance, open source multimedia framework.
+19 stars
from 1,624 · score 3.00
459.brannondorsey / naive-hashcat
Crack password hashes without the fuss :cat2:
+19 stars
from 1,410 · score 3.00
460.CobaltFusion / DebugViewPP
DebugView++, collects, views, filters your application logs, and highlights information that is important to you!
- outputdebugstring
- filter
- logfile
- regular-expression
- dbgview
- debugview
- +1 more
+19 stars
from 1,258 · score 3.00
461.kondrak / vkQuake2
id Software's Quake 2 v3.21 with mission packs and Vulkan support (Windows, Linux, macOS, FreeBSD, Raspberry Pi 4)
- vulkan
- vulkan-api
- quake
- quake2
- gpu
- 3d-graphics
- +10 more
+19 stars
from 1,003 · score 3.00
462.fragglet / c-algorithms
A library of common data structures and algorithms written in C.
- algorithm
- data-structures
- c
- library
- isc
+18 stars
from 3,598 · score 2.94
+18 stars
from 1,564 · score 2.94
464.ring-lang / ring
A simple, lightweight, flexible, embeddable, portable and multi-paradigm dynamic programming language for developing applications, tools, and domain-specific languages
- programming-language
- compiler
- virtual-machine
- ring
- language
- ring-programming-language
- +14 more
+18 stars
from 1,452 · score 2.94
465.wmcbrine / PDCurses
A curses library for environments that don't fit the termcap/terminfo model.
- pdcurses
- curses
- ncurses
+18 stars
from 1,237 · score 2.94
466.irontec / sngrep
Ncurses SIP Messages flow viewer
+18 stars
from 1,197 · score 2.94
467.holzschu / ios_system
Drop-in replacement for system() in iOS programs
+18 stars
from 1,059 · score 2.94
468.hasherezade / mal_unpack
Dynamic unpacker based on PE-sieve
- libpeconv
- pe-sieve
- memory-forensics
- malware-unpacker
- malware-analysis
+18 stars
from 826 · score 2.94
469.libtom / libtommath
LibTomMath is a free open source portable number theoretic multiple-precision integer library written entirely in C.
- mpi
- libtommath
- c
- math
- multi-precision
+18 stars
from 795 · score 2.94
470.Dn-Programming-Core-Management / Dn-FamiTracker
modifications and improvements for 0CC-FamiTracker (based on j0CC-FamiTracker 0.6.3)
- nes
- famicom
- nsf
- chiptune
- chiptune-tracker
- 0cc-famitracker
- +2 more
+18 stars
from 517 · score 2.94
+17 stars
from 5,132 · score 2.89
472.jmcnamara / libxlsxwriter
A C library for creating Excel XLSX files.
- xlsx-files
- libxlsxwriter
- c
- xlsxwriter
- spreadsheet
- xlsx
+17 stars
from 1,749 · score 2.89
473.Cyan4973 / FiniteStateEntropy
New generation entropy codecs : Finite State Entropy and Huff0
- huffman
- c
- fse
- compression
- entropy
+17 stars
from 1,490 · score 2.89
474.samtools / htslib
C library for high-throughput sequencing data formats
- htslib
- bioinformatics
- sam
- bam
- cram
- vcf
- +2 more
+17 stars
from 939 · score 2.89
+17 stars
from 908 · score 2.89
+17 stars
from 861 · score 2.89
+17 stars
from 723 · score 2.89
478.daandemeyer / reproc
A cross-platform (C99/C++11) process library
+17 stars
from 646 · score 2.89
479.redeclipse / base
Base environment for Red Eclipse and associated source files.
- game
- game-engine
- main-project
- source-code
- hacktoberfest
+17 stars
from 527 · score 2.89
+17 stars
from 419 · score 2.89
481.lc-soft / LCUI
C library for building user interfaces
- gui-framework
- c
- gui-toolkit
- cross-platform-gui
- windows
+16 stars
from 4,332 · score 2.83
482.jakogut / tinyvm
TinyVM is a small, fast, lightweight virtual machine written in pure ANSI C.
+16 stars
from 3,314 · score 2.83
483.EnterpriseDB / repmgr
A lightweight replication manager for PostgreSQL (Postgres)
- repmgr
- replication
- postgresql
- postgres
- ha
- failover
- +3 more
+16 stars
from 1,704 · score 2.83
484.ChristopheJacquet / PiFmRds
FM-RDS transmitter using the Raspberry Pi's PWM
+16 stars
from 1,579 · score 2.83
485.cr-marcstevens / sha1collisiondetection
Library and command line tool to detect SHA-1 collision in a file
+16 stars
from 1,407 · score 2.83
+16 stars
from 1,327 · score 2.83
487.uclouvain / openjpeg
Official repository of the OpenJPEG project
- openjpeg
- c
- jpeg2000
- reference-implementation
- reference
+16 stars
from 1,105 · score 2.83
+16 stars
from 983 · score 2.83
489.DroneBridge / DroneBridge
DroneBridge is a system based on the WifiBroadcast approach. A bidirectional digital radio link between two endpoints is established using standard WiFi hardware and a custom protocol. DroneBridge is optimized for use in UAV applications and is a complete system. It is intended be a real alternative to other similar systems, such as DJI Lightbridge or OcuSync.
- msp
- telemetry
- wifibroadcast
- dronebridge
- aerial-imagery
- inav
- +14 more
+16 stars
from 939 · score 2.83
490.pathtofile / bad-bpf
A collection of eBPF programs demonstrating bad behavior, presented at DEF CON 29
+16 stars
from 695 · score 2.83
491.dyne / frei0r
A large collection of free and portable video plugins
+16 stars
from 579 · score 2.83
492.SafeExamBrowser / seb-mac
Safe Exam Browser for macOS and iOS
- seb
- seb-mac
- macos
- xcode
- e-assessment
- webbrowser
- +6 more
+16 stars
from 131 · score 2.83
+15 stars
from 9,125 · score 2.77
494.ZipArchive / ZipArchive
ZipArchive is a simple utility class for zipping and unzipping files on iOS, macOS and tvOS.
- unzipping-files
- ziparchive
- swift
- objective-c
- objective-c-library
- swift-library
- +1 more
+15 stars
from 5,589 · score 2.77
495.Celtoys / Remotery
Single C file, Realtime CPU/GPU Profiler with Remote Web Viewer
+15 stars
from 3,304 · score 2.77
+15 stars
from 3,168 · score 2.77
497.swiftlang / swift-corelibs-libdispatch
The libdispatch Project, (a.k.a. Grand Central Dispatch), for concurrency on multicore hardware
+15 stars
from 2,592 · score 2.77
498.skaiworldwide-oss / agensgraph
AgensGraph, a high performance transactional graph database based on PostgreSQL
- graph-database
- multi-model-database
- postgresql
- enterprise
- nosql
- graphdb
- +4 more
+15 stars
from 1,501 · score 2.77
+15 stars
from 1,461 · score 2.77
+15 stars
from 1,369 · score 2.77