3D Printing
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Algorithms
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Authentication
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Best Practices
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data-to-viz Build unique React charts How the train crash in eastern India unfolded RATH
Automated data exploratory analysis and visualization tools.
Data Viz Project
A website trying to present all relevant data visualizations, so you can find the right visualization and get inspired how to make them.
Penrose
Create beautiful diagrams just by typing notation in plain text.
Visual Information Theory How to build a network stack in Ruby HTTPS explained with carrier pigeons MyIP
A better IP Toolbox. Easy to check what’s your IPs, IP informations, check for DNS leaks, examine WebRTC connections, speed test, and test website availability.
IP Info API
Free IP information query APIs / 免费IP信息查询API接口
IPS
Git In The Trenches Using Git Commit Message Templates to Write Better Commit Messages Git飞行规则(Flight Rules) Tails
A portable operating system that protects against surveillance and censorship.
Starting a new digital identity Linux 中如何安全地抹去磁盘数据？ How I stay reasonably anonymous online satellite-track
satellite-track 是一款追踪卫星轨道的程序，使用cesium、vue、satelliteJS开发。支持24小时之内(性能考虑)的卫星和卫星星座轨道显示；同时也支持自定义的卫星轨道数据（TLE）加载。数据来源于celestrak。
Berty
Messaging, Secure, Multiplatform, Bluetooth(BLE)
Devpod: Improving Developer Productivity at Uber with Remote Development
Infra, Collaboration, Repo
Rewrite, refactor, or reinvent? Trends in Twitter’s Architecture Kubernetes is a red flag signalling premature optimisation. Gitness
Gitness is an open source development platform packed with the power of code hosting and automated DevOps pipelines.
How Instagram scaled to 14 million users with only 3 engineers How Pinterest scaled to 11 million users with only 6 engineers 67 Weird Debugging Tricks Your Browser Doesn’t Want You to Know How to Copy Uncopyable Texts on Windows Building a collaborative text editor in Go The UX of UUIDs pragmatic-drag-and-drop
Fast drag and drop for any experience on any tech stack
spotube
An open source, cross-platform Spotify client compatible across multiple platforms
VueTube
A simple and open source video streaming client aimed to recreate ALL the features from their respective apps (and more!)
Alock
一款免费用于隐藏指定 App 的应用。使用 Alock 可以彻底地从 iPhone/iPad 上隐藏指定的 App，隐藏后的 App 在主屏幕、App资料库、搜索、系统设置中均不可见。最大程度保护您的隐私。
Restfox
Offline-first web HTTP client
Json Parser in Standard C (C99)
JSON parser in standard C
Haven
Haven is for people who need a way to protect their personal areas and possessions without compromising their privacy.
On-Device Sensors, Camera, Power
pho
A serverless application for viewing and synchronizing photos to cloud storage
Multiplatform
YuzuMarker.FontDetection
CJK（中日韩）字体识别以及样式提取 YuzuMarker的字体识别模型与实现
Chitchatter
Chitchatter is a free (as in both price and freedom) communication tool. Designed to be the simplest way to connect with others privately and securely.
Tails
A portable operating system that protects against surveillance and censorship.
Csv2ImageApp
Convert Csv into png image.
Swift
IceCubesApp
IceCubesApp is an open source application for accessing the decentralized social network Mastodon! It’s built entirely in SwiftUI, making it fast, lightweight, and easy to use.
Sniffnet
Application to comfortably monitor your Internet traffic Multithreaded, cross-platform, reliable
Multilanguage
tracker-control-android
TrackerControl is an Android app that allows users to monitor and control the widespread, ongoing, hidden data collection in mobile apps about user behaviour (’tracking’).
Android-Touch-Helper
Plane
Open Source JIRA, Linear and Height Alternative.
ONLYOFFICE Community Server
ONLYOFFICE Community Server is a free open-source collaborative system developed to manage documents, projects, customer relationship and email correspondence, all in one place.
basic-computer-games
An updated version of the classic “Basic Computer Games” book, with well-written examples in a variety of common MEMORY SAFE, SCRIPTING programming languages.
Today I Learned
A collection of concise write-ups on small things I learn day to day across a variety of languages and technologies.
Pot (派了个萌的翻译器)
Easydict
schedule-x
Material design calendar and date picker
中国历朝代视频讲解 Postal
A fully featured open source mail delivery platform for incoming & outgoing e-mail
briefsky
A free weather frontend to a variety of weather providers
Awesome Cloudflare Magic Wormhole
Get things from one computer to another, safely.
Black Candy
A self hosted music streaming server
excalidraw
An open source virtual hand-drawn style whiteboard.
Berty
Messaging, Secure, Multiplatform, Bluetooth(BLE)
Devpod: Improving Developer Productivity at Uber with Remote Development
Infra, Collaboration, Repo
Rewrite, refactor, or reinvent? Trends in Twitter’s Architecture Kubernetes is a red flag signalling premature optimisation. Gitness
Gitness is an open source development platform packed with the power of code hosting and automated DevOps pipelines.
How Instagram scaled to 14 million users with only 3 engineers How Pinterest scaled to 11 million users with only 6 engineers 67 Weird Debugging Tricks Your Browser Doesn’t Want You to Know How to Copy Uncopyable Texts on Windows Building a collaborative text editor in Go The UX of UUIDs Scratch
Scratch is the world’s largest coding community for children and a coding language with a simple visual interface that allows young people to create digital stories, games, and animations.
Chat2DB
Chat2DB is an intelligent, universal SQL client and data reporting tool that integrates AI capabilities.
ntfy.sh
Send push notifications to your phone or desktop via PUT/POST
Kopia
a fast and secure open-source backup/restore tool
container
a tool that you can use to create and run Linux containers as lightweight virtual machines on your Mac
Am I online?
if it was connected to the internet.
Engineering Blog Posts from Top Tech Companies
Latest software engineering articles, tutorials, and insights from Google, Meta, OpenAI, and more
MiroTalk SFU
MiroTalk SFU stands for Selective Forwarding Unit, built on Mediasoup, a powerful media server that routes video/audio streams between participants.
OpenCut
The open-source CapCut alternative
Clone Wars
Open source clones of popular sites
openDesk
openDesk is the customisable office and collaboration suite designed specifically for your needs in public administration.
Alle
MagicMirror
an open source modular smart mirror platform
Umi-OCR文字识别工具 Build your own X
This repository is a compilation of well-written, step-by-step guides for re-creating our favorite technologies from scratch.
Ory Kratos
Headless cloud-native authentication and identity management written in Go.
LibrePods
LibrePods unlocks Apple’s exclusive AirPods features on non-Apple devices.
Standard Go Project Layout MicroQuickJS
MicroQuickJS (aka. MQuickJS) is a JavaScript engine targeted at embedded systems.
Sentry
Sentry is the debugging platform that helps every developer detect, trace, and fix issues.
Supabase
Supabase is the Postgres development platform. We’re building the features of Firebase using enterprise-grade open source tools.
Nextcloud
A safe home for all your data
Seafile
an open source cloud storage system with privacy protection and teamwork features
AirScan-QR
一款极简、高效的开源Web工具，在通过二维码动态流（QR Code Stream）解决跨设备、跨网络环境下的数据传输痛点。
Manim
Manim is an engine for precise programmatic animations, designed for creating explanatory math videos.
Remotion
Remotion is a framework for creating videos programmatically using React.
Memos
An open-source, self-hosted note-taking service.
daedalOS
Desktop environment in the browser
immich
High performance self-hosted photo and video management solution
π RuView
See through walls with WiFi
Project N.O.M.A.D.
Project N.O.M.A.D, is a self-contained, offline survival computer packed with critical tools, knowledge, and AI to keep you informed and empowered—anytime, anywhere.
Meilisearch
A lightning-fast search engine that fits effortlessly into your apps, websites, and workflow.
Puter
The Internet Computer! Free, Open-Source, and Self-Hostable.
Apprise
send a notification to almost all of the most popular notification services
Postal
Postal is a complete and fully featured mail server for use by websites & web servers.
ZoneMinder
ZoneMinder is an integrated set of applications which provide a complete surveillance solution
code-server
Awesome-Selfhosted
A list of Free applications which can be hosted on your own servers
Rclone
A command-line program to sync files and directories to and from different cloud storage providers.
LocalSend
An open-source cross-platform alternative to AirDrop
WSL
Windows Subsystem for Linux
LaunchNext
Bring your Launchpad back in MacOS26+
Bluetooth Numbers Database Maigret
Maigret collects a dossier on a person by username only, checking for accounts on a huge number of sites and gathering all the available information from web pages.
Qwerty Learner
Anime.js
Anime.js is a fast, multipurpose and lightweight JavaScript animation library with a simple, yet powerful API.
The Book of Secret Knowledge
A collection of inspiring lists, manuals, cheatsheets, blogs, hacks, one-liners, cli/web tools, and more.
CloakBrowser
Stealth Chromium that passes every bot detection test.
jsQR
A pure javascript QR code reading library.
canvas-confetti
performant confetti animation in the browser
Perspectives
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Squircle CE
Squircle CE is a fast and free multi-language code editor for Android.
Aegis
A free, secure and open source app for Android to manage your 2-step verification tokens.
GPT Assistant
这是一个基于ChatGPT的安卓端语音助手，允许用户通过手机音量键从任意界面唤起并直接进行语音交流，用最快捷的方式询问并获取回复
京墨
『京墨』开源的古诗词文（名句）、歇后语、成语、传统节日、绕口令等的阅读APP
京墨文库（鸿蒙版） Doze Buster
This app disables the Android battery saving feature Doze
DroidDock
A sleek macOS desktop application for browsing Android device files via ADB (Android Debug Bridge).
dadb
A Kotlin/Java library to connect directly to an Android device without an adb binary or an ADB server
Chucker
An HTTP inspector for Android & OkHTTP (like Charles but on device)
SMS Gateway for Android
Turns your smartphone into an SMS gateway for sending and receiving messages via API.
phyphox
Your smartphone is a mobile lab.
aShell You
A beautifully crafted Material You app for executing ADB commands directly on your Android device.
Jira Clone
A simplified Jira clone built with React/Babel (Client)
Github Gitlab Space is a complete software development platform
Integrated with JetBrains IDEs
CodeBerg
Codeberg is a collaboration platform and Git hosting for Free and Open Source Software, content and projects.
One Dev
Self-hosted Git Server with CI/CD and Kanban
sourcehut
This suite of open source tools is the software development platform
Forgejo
Forgejo is a self-hosted lightweight software forge.
Easy to install and low maintenance, it just does the job.
Bruno
Bruno - Opensource IDE for exploring and testing APIs.
Maestro
Maestro is the simplest and most effective UI testing framework for Mobile and Web.
CLOUDFLARE Speed Test IP GUIDE
Look up IP, Network, and ASN data.
Hippotat
Hippotat is a system to allow you to use your normal VPN, ssh, and other applications, even in broken network environments
cloudping.info
Use this page to measure latency from your browser to various cloud provider datacenters.
下载或定制适用于您设备的OpenWrt固件 MAC Address Lookup Git Command Explorer
Find the right commands you need without digging through the web.
gitignore
git-cliff
A highly customizable Change log Generator that follows Conventional Commit specifications
Clean GIT history with BFG Repo-Cleaner Git-Sim: Visually Simulate Git Operations In Your Own Repos Live Starlink Satellite and Coverage Map 帮小忙
nosignup.tools
Handpicked no-signup tools, you can use in 10 seconds
高等院校三千所 AnyBT
日文排版工具 Plug & socket types Send text securely Open source virtual / remote desktop infrastructure for everyone! AnyDesk Windows
Windows in a Docker container.
Microsoft PowerToys: Utilities to customize Windows Mosh(mobile shell)
Remote terminal application that allows roaming, supports intermittent connectivity, and provides intelligent local echo and line editing of user keystrokes.
中日文翻译
Code Language Converter How to receive SMS online MultiTranslate NATIONAL VULNERABILITY DATABASE URLhaus
URLhaus is a project from abuse.ch with the goal of sharing malicious URLs that are being used for malware distribution.
GeoSpy
Photo location prediction using AI.
Lessons in Electric Circuits diode
Build, program, and simulate hardware in the browser.
Electronic Circuit Simulator in the Browser Google Public DNS DNS Look Up IP 地址库 Old Internet Files
Lists of domains, root servers, and so forth.
MessWithDNS
Online Cryptography Toolbox An open source multi-tool for exploring and publishing data Database of Databases THEY SEE YOUR PHOTOS
Your photos reveal a lot of private information.
TV garden
Free live TV streaming from anywhere.
DummyJSON
your go-to free online REST API for instantly generating placeholder data without the hassle of setting up a server.
美国地址生成器
美国地址生成器是专为开发者、测试人员和教育工作者设计的专业工具。它能生成符合真实格式的美国地址数据，包括个人信息、联系方式以及全美50个州的地理数据。
Shields IO
Concise, consistent, and legible badges in SVG and raster format
all text in nyc
a search engine that finds text in New York City’s Google Street View images.
Etcher
Flash OS images to SD cards & USB drives, safely and easily.
v86
Run KolibriOS, Linux or Windows 98 in your browser.
taken.
You opened this page. It already knows the following.
Blow Your Mind
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THE STARTUP GRAVEYARD The Cloudflare Radar 2025 Year in Review Who Still Uses Cash? 关于破解加拿大航空飞机网络限制的一件小事 The Secret History of Tor: How a Military Project Became a Lifeline for Privacy Web fingerprinting is worse than I thought I used o3 to profile myself from my saved Pocket links Watching o3 guess a photo’s location is surreal, dystopian and wildly entertaining Yes, Claude Code can decompile itself. Here’s the source code. Collection of insane and fun facts about SQLite Glass Antenna Turns Windows Into 5G Base Stations WI-FI 7 SIGNALS THE INDUSTRY’S NEW PRIORITY: STABILITY Qualcomm wants to replace eSIMs with iSIMs, has the first certified SoC Wikimedia DNS How to find a domain’s authoritative nameservers Use DNS TXT lookup to gain quick insights which services companies are using What happens if you point two CNAMEs at each other? These incredible drone displays show what unfinished buildings could look like Undefined claims 4.5-min flight for its “silent” ion-propulsion drone The Law of Large Numbers, or Why It Is a Bad Idea to Go to the Casino The 18 biggest unsolved mysteries in physics Apple allows applications to track user locations without authorization How companies spy on their employees as they push return-to-office — from monitoring badge swipes to tracking breaks Exploring EXIF Apple vs Meta: The Illusion of Privacy The “Location Off” switch on your phone is a lie. In search of the perfect URL validation regex(https://mathiasbynens.be/demo/url-regex )
Solving Wordle using Regex (and a little bit of Python)(https://dov.is/notebooks/solving-wordle-regex.html )
Regular Expression Tester and Visualizer(https://devtoolcafe.com/tools/regex )
How to Match a Phone Number with Regex and JavaScript(https://indepthjavascript.dev/how-to-match-a-phone-number-with-regex-and-javascript )
China to begin constructing its own megaconstellation later this year Amazon reveals its squared-off Project Kuiper satellite internet dishes Thermal Attacks - How Heat From Fingertips Can Reveal Passwords 一张照片，就能知道你在哪里？丨网络迷踪初探 How to Bypass TOTP-Based 2FA Login Flows With Playwright Encrypted traffic interception on Hetzner and Linode targeting the largest Russian XMPP (Jabber) messaging service 高德地图官方首度揭秘：红绿灯倒计时功能是如何实现的 The most copied StackOverflow snippet of all time is flawed! 64-Bit Bank Balances ‘Ought to be Enough for Anybody’? Shift to Memory-Safe Languages Gains Momentum On-skin Telehaptic Device Allows Users to Transmit Touch Remotely カゴメとNECが世界の農業に革新を起こす！ THIS SMART BANDAGE DOES THE WORK OF A DOCTOR Spider-like robotic AI arms can be attached to and controlled by humans New Bioinspired Robot Flies, Rolls, Walks, and More Pizza Hut Will Deliver Your Resume Printed on a Pizza Box to Prospective Employers Null Island
A design reflection about the representation of missing values.
U.S. military-run slot machines earn $100 million a year from service members overseas What’s the most beautiful web game you’ve seen? Please make more USB-C cables like this BARCELONA SUPERCOMPUTING CENTER
Why a ‘hologram revolution’ could be on the way
Adobe Introduces Project Primrose, a Digital Animated Dress That Can Change Patterns U2’s Concert at The Sphere Went Viral—and It May Change How We Watch Live Music A German Circus Uses Stunning Holograms Instead of Live Animal Performers
Stories From The Year Thirty Forty Two MIT engineers build a battery-free, wireless underwater camera 无线充电有望解除电动汽车“里程焦虑” Working with Claire: an unauthorized guide
Update on Meta’s Year of Efficiency Scientist has world’s worst solution to Europe’s declining population History of Web Browser Engines from 1990 until today A Programmer Turned an Open Source Tool Into a $7,500,000,000 Empire
WebRcade
The San Francisco FogCam!
Fogcam! is the oldest continuously operating webcam in the world.
Querying the GitHub archive with the ClickHouse playground Japanese man travels 4,000 miles to spell ‘marry me’ on Google Earth
Small teams
impressive things accomplished by small teams.
XEROX PARC’S ENGINEERS ON HOW THEY INVENTED THE FUTURE Chrome, 10 years later
how many redirects should a browser follow?
Deployment and infrastructure for a bootstrapped webapp with 150k monthly visits
blue-green deployment, server, routing
A history of ARM, part 1: Building the first chip