PromptHub Blog & Tutorials

Jun 27, 2026 • 7 min read • 50

Flow Expense Tracker: Why Developers Are Ditching Subscriptions

Flow is a free, open-source expense tracker built with Flutter that works fully offline with no subscriptions, no trackers, and complete data control. Features URI-based automation, infinite currencies, and AI receipt parsing.

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I Deployed a Dark Web Scanner in 5 Minutes Here's What It Found

Cybersecurity

Jun 20, 2026 • 15 min read • 57

I Deployed a Dark Web Scanner in 5 Minutes Here's What It Found

Deploy osintph/darkweb-scanner in 5 minutes: a self-hosted threat intelligence platform with dark web crawling, ransomware tracking, Telegram monitoring, and daily intelligence digests. Built for Southeast Asian security teams.

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Stop Using Bloated Engines! Cocos Creator Is the Secret Weapon Top Indie Devs Use

Open Source Tools

Jun 11, 2026 • 11 min read • 128

Stop Using Bloated Engines! Cocos Creator Is the Secret Weapon Top Indie Devs Use

Discover why millions of developers choose Cocos Creator for 2D/3D games. This free, open-source, cross-platform game engine delivers high performance, tiny package sizes, and native support for instant gaming platforms like WeChat and TikTok.

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Stop Overpaying for Circle to Search! This Free Android App Beats Google

Open Source Tools

Jun 05, 2026 • 15 min read • 291

Stop Overpaying for Circle to Search! This Free Android App Beats Google

CircleToSearch brings multi-engine reverse image search to ANY Android device with privacy-first offline OCR. No flagship required, no Google lock-in. Built with Kotlin and Jetpack Compose, this open-source tool supports Google Lens, Bing, Yandex, TinEye, ChatGPT and Perplexity—working entirely offline for text recognition.

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Stop Wasting Hours on Threat Intel: IntelOwl Does It in Seconds

Cybersecurity

Jun 02, 2026 • 16 min read • 143

Stop Wasting Hours on Threat Intel: IntelOwl Does It in Seconds

Discover how IntelOwl revolutionizes threat intelligence by aggregating 100+ analyzers through a single API. This complete guide covers installation, real code examples, and production deployment strategies for security teams.

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OpenOCR: The OCR Toolkit Developers Need

Computer Vision

Apr 26, 2026 • 16 min read • 261

OpenOCR: The OCR Toolkit Developers Need

OpenOCR from Fudan University revolutionizes document parsing with an ultra-lightweight 0.1B parameter model achieving 90.57% accuracy on OmniDocBench. This open-source toolkit unifies text detection, formula recognition, and table extraction for both research and production.

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GeoSentinel: The Geospatial Monitoring Platform

Open Source Tools

Apr 23, 2026 • 16 min read • 232

GeoSentinel: The Geospatial Monitoring Platform

GeoSentinel is a revolutionary open-source geospatial monitoring platform that unifies real-time flight, vessel, and satellite tracking with AI-powered analysis and privacy-first features. Learn installation, advanced usage, and how it outperforms commercial alternatives.

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OpenHaystack: Build Your Own AirTags Today

Open Source Tools

Mar 27, 2026 • 20 min read • 749

OpenHaystack: Build Your Own AirTags Today

OpenHaystack is the revolutionary open-source framework that lets you build DIY AirTags using Apple's Find My network. Learn installation, cryptography, and real-world use cases in this comprehensive 2000+ word technical guide.

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Awesome AI Apps: 100+ Agents for Modern Developers

Open Source Tools

Mar 23, 2026 • 17 min read • 261

Awesome AI Apps: 100+ Agents for Modern Developers

Discover 100+ production-ready AI agents and LLM applications in rohitg00's Awesome AI Apps repository. Complete implementations for OpenAI, Gemini, Claude, and local models with real-world RAG, multi-agent teams, and multimodal capabilities.

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Cybersecurity

Feb 27, 2026 • 14 min read • 477

awesome-malware-analysis: The Essential Cybersecurity Arsenal

Discover the ultimate curated list of 100+ malware analysis tools in awesome-malware-analysis. From honeypots to memory forensics, this comprehensive guide shows you how to build a professional cybersecurity lab, automate analysis workflows, and join the global threat intelligence community.

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CourseLit: The Open Source LMS Revolutionizing Online Education

Open Source Tools

Feb 17, 2026 • 15 min read • 375

CourseLit: The Open Source LMS Revolutionizing Online Education

Discover CourseLit, the revolutionary open-source LMS that empowers creators to sell courses and digital downloads from their own branded websites. This comprehensive guide covers installation, code examples, and real-world use cases.

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IT Service Management

Jan 30, 2026 • 5 min read • 378

Why Combodo/iTop is the Ultimate IT Service Management Tool

Combodo/iTop is an open-source, web-based IT service management platform with a fully customizable CMDB, helpdesk system, and document management tool. It's ITIL compliant and highly customizable with a range of add-ons and web services.

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