A simple, fast and free app to remove unnecessary files from your computer.

Features

• Written in memory-safe Rust - almost 100% unsafe code free
• Amazingly fast - due to using more or less advanced algorithms and multithreading
• Free, Open Source without ads
• Cache support - second and further scans should be much faster than the first one
• CLI frontend - for easy automation
• GUI frontend
• No spying - Czkawka does not have access to the Internet, nor does it collect any user information or statistics
• Multilingual - support multiple languages like Polish, English or Italian

Multiple tools to use:

• Duplicates - Finds duplicates based on file name, size or hash
  Empty Folders - Finds empty folders with the help of an advanced algorithm
• Big Files - Finds the provided number of the biggest files in given location
• Empty Files - Looks for empty files across the drive
• Temporary Files - Finds temporary files
• Similar Images - Finds images which are not exactly the same (different resolution, watermarks)
• Similar Videos - Looks for visually similar videos
• Same Music - Searches for similar music by tags or by reading content and comparing it
• Invalid Symbolic Links - Shows symbolic links which point to non-existent files/directories
• Broken Files - Finds files that are invalid or corrupted
• Bad Extensions - Lists files whose content not match with their extension

Perfect for anyone who wants a lightweight, reliable, and transparent way to declutter their system.

Postal is a complete, open-source mail delivery platform designed for websites and web servers. Think SendGrid, Mailgun, or Postmark — but fully self-hosted and under your control. Key features:

✉️ Full-featured mail server for transactional and bulk email

⚙️ Built-in web interface for managing domains, queues, and logs

🔒 Privacy and security: keep all data on your own servers

🌍 Scalable for small projects or enterprise-level deployments

🧩 Open-source transparency, community-driven development

🚀 Ideal for developers and organizations who want independence from third-party email providers

Perfect for anyone who needs reliable, flexible, and private email delivery without relying on external services.

Picocrypt-NG (New Generation) is a very small, very simple, yet highly secure file encryption utility. Designed to be the go-to tool for protecting sensitive files, it emphasizes security, simplicity, and reliability. Key features:

🛡️ Uses modern cryptography: XChaCha20 cipher + Argon2id key derivation

📦 Lightweight and portable — minimal footprint, no unnecessary complexity

🔒 Strong focus on security and reliability, with open-source transparency

⚙️ Easy to use: straightforward interface for quick encryption/decryption

🌍 Cross-platform support for everyday file protection needs

Perfect for anyone who wants fast, trustworthy encryption without bloat.

HostsMan is a freeware application that makes managing your Windows hosts file simple and efficient. It provides built-in tools to update, edit, and troubleshoot hosts entries. Key features:

🔄 Built-in hosts file updater with support for multiple sources

✏️ Integrated editor to easily add, remove, or modify entries

🛡️ Fix errors, remove duplicates, and detect possible hijacks

📦 Backup manager to save and restore previous versions

⚙️ Troubleshooter for common issues with hosts file configuration

✅ Lightweight, fast, and designed for everyday network security tasks

Perfect for anyone who wants easy control over their hosts file without manual editing.

Rethink DNS + Firewall is a free, open-source Android app that makes it easy to monitor app activity, block ads and trackers, and circumvent Internet censorship. Key features:

🛡️ Android firewall: prevent apps from connecting to the Internet over Wi-Fi or mobile data

🚫 Content blocking: ads, trackers, malware, and more

🌍 Anti-censorship: encrypts DNS requests to bypass restrictions, with presence in 200+ locations worldwide

📊 Monitoring: logs every app’s connections and data usage

⚙️ Automated reports flag suspicious connections and reveal surveillance attempts

🔒 Privacy-first design, no accounts required

Perfect for anyone who wants system-wide privacy and control over their Android device.

SimpleX Chat is a free, open-source messenger designed for maximum privacy. Unlike other messaging networks, SimpleX has no identifiers assigned to users — not even random ones. Key features:

🔒 End-to-end encryption with no usernames, phone numbers, or public keys

📱 Private connections via link or QR code for messaging and calls

🌐 Pairwise anonymous addresses hide communication metadata from servers and observers

🛡️ Option to connect via Tor for extra anonymity

💻 Cross-platform support: Android, iOS, and desktop

🌍 Community-driven, open-source transparency

Perfect for anyone who wants truly private communication without digital footprints.

WiFi Analyzer (open-source) helps you examine surrounding WiFi networks and optimize your own connection. Designed with privacy in mind, it uses as few permissions as possible and requires no internet access. Key features:

📶 Measure signal strength of nearby WiFi networks

📊 Identify crowded channels to improve performance

🔒 Privacy-focused: no data collection, no hidden tracking

⚙️ Lightweight and open-source, fully transparent

📱 Android support with a clean, intuitive interface

Perfect for anyone who wants to boost WiFi performance and reliability while keeping privacy intact.

Loop Habit Tracker is a free, open-source Android app that helps you create and maintain good habits over time. It’s lightweight, privacy-respecting, and completely ad-free. Key features:

📈 Detailed charts and statistics to visualize progress

🔔 Flexible reminders to keep you on track

🔒 Privacy-first: no accounts, no tracking, all data stored locally

⚙️ Customizable habit frequency (daily, weekly, custom intervals)

🌍 Open-source transparency with active community contributions

📱 Clean, intuitive design optimized for long-term habit building

Perfect for anyone who wants to achieve long-term goals through consistent habit tracking without sacrificing privacy.

dupeGuru is a free, open-source tool to find duplicate files on your computer. It can scan filenames or file contents, making it versatile for cleaning up clutter. Key features:

🔍 Filename scan with fuzzy matching to catch duplicates even when names differ slightly

🎵 Music mode: scans tags and shows music-specific info in results

🖼️ Picture mode: fuzzy image scanning to detect similar photos

⚙️ Customizable matching engine to fine-tune duplicate detection

🛡️ Safe design: grouping system prevents accidental deletion of important files

💻 Cross-platform support: Windows, macOS, Linux

Perfect for anyone who wants a reliable way to declutter storage and organize files without risk.

Technitium DNS Server is a free, open-source authoritative and recursive DNS server that can be self-hosted for maximum privacy and control. It works out-of-the-box with minimal configuration and provides a user-friendly web console. Key features:

🔒 Supports encrypted DNS protocols: DNS-over-TLS, DNS-over-HTTPS, DNS-over-QUIC

⚡ Performance boost: local caching makes websites load faster

🛡️ Network-wide control: block domains, route DNS traffic securely

📊 DNS logs and stats for deeper insights into your network

💻 Cross-platform: Windows, Linux, macOS, Raspberry Pi

🌍 Ideal for home networks or organizations seeking independence from ISP or third-party DNS providers

Perfect for anyone who wants privacy, security, and control over DNS resolution without relying on external services.

HomeBank is a free, open-source personal finance software designed for everyone. It helps you manage your money, track expenses, and analyze your financial habits with ease. Key features:

📊 Detailed charts and statistics to visualize spending and income

💳 Import data from popular formats (OFX, QIF, CSV) for easy migration

🔔 Budget management with customizable categories and alerts

💻 Cross-platform support: Windows, Linux, macOS, FreeBSD

🌍 Multilingual interface with active community contributions

🛡️ Free forever, no subscriptions or hidden costs

Perfect for anyone who wants clear, reliable, and user-friendly money management without sacrificing privacy or paying for premium tools.

Kdenlive is a powerful, free, open-source non-linear video editor built on the MLT framework. It integrates a wide range of plugins and effects for video and audio processing, making it a complete studio for video creation. Key features:

🎞️ Multi-track editing with a customizable timeline

✨ Wide range of video/audio effects and transitions

🖋️ Advanced titling tool for text and graphics

📀 DVD authoring with menus for distribution

⚙️ Proxy editing for smoother performance on lower-end hardware

🌍 Cross-platform support: Linux, Windows, macOS

🛡️ Free Software under GNU GPL — no subscriptions, no locked features

Perfect for creators who want professional-grade editing freedom without the cost.

OpenShot Video Editor is an easy-to-use, quick-to-learn, and surprisingly powerful video editing tool. Designed for accessibility and creativity, it’s perfect for beginners and pros alike. Key features:

💻 Cross-platform support: Linux, macOS, Windows

✂️ Video trimming: easily cut and trim clips

🎞️ Animation & keyframes: add dynamic motion to your projects

🖼️ Layer support: multiple layers for watermarks, background videos, audio tracks, and more

🎨 Video effects: remove backgrounds, adjust brightness, invert colors, and more

🔊 Audio visualization: display audio as waveforms

📝 Title templates: use built-in templates or create custom titles

🎮 Playback control: reverse, slow down, speed up, and animate playback speed

📂 Drag-and-drop import for video, audio, and images

Perfect for anyone who wants powerful yet approachable video editing freedom without the cost.

Web to PDF is a simple Chrome extension that lets you convert any web page into a PDF for offline reading, sharing, or archiving. Key features:

🎨 Preserve styles and clickable links for accurate formatting

📄 Flexible layouts: choose page breaks or single-page format

⚡ High quality: uses Chrome’s built-in PDF tool for clear results

🔒 Secure: saves directly to your device, protecting privacy

🖱️ One-click conversion for fast, hassle-free use

Perfect for anyone who needs a quick and reliable way to save content offline.

Long PROMPTs Splitter is an open-source tool designed to help you split long text prompts into smaller chunks, making them suitable for usage with ChatGPT or other language models that have character limitations. Key features:

📏 Automatically divides text into safe chunks (default: up to 15,000 characters per request, customizable)

🖥️ Easy-to-use web interface for inputting long text and selecting chunk size

📋 Copy chunks individually for seamless pasting into AI systems

⚙️ Works with any AI platform where prompt length exceeds limits

🌍 Open-source transparency, free to use

Perfect for anyone who wants to handle oversized prompts without losing context.

Tox is a free, open‑source instant messaging platform designed for maximum privacy. Unlike mainstream services, it has no ads, no fees, and no corporate oversight. Key features:

• End‑to‑end encrypted messaging, voice, and video calls

• Decentralized, peer‑to‑peer architecture — no central servers

• Onion routing for enhanced anonymity

• Cross‑platform support (Windows, macOS, Linux, Android, iOS)

• Community‑driven, transparent, and forever free

Perfect for: Anyone who wants secure communication without surveillance or hidden costs.

Betterbird is a fine‑tuned version of Mozilla Thunderbird, designed to deliver a smoother, more feature‑rich email experience.

🔧 Exclusive new features not yet in Thunderbird

🐞 Bug fixes unique to Betterbird

⚡ Performance and usability improvements

🖥️ Cross‑platform support (Windows & Linux)

🌐 Open‑source, community‑driven project

Perfect for: Users who love Thunderbird but want faster updates, extra features, and fewer bugs.

KeePassDX is an open‑source password manager for Android that keeps your digital identities safe in one encrypted file.

🔐 Store and manage passwords securely

✏️ Edit encrypted keys and identities

📝 Autofill forms with strong credentials

🔄 Compatible with other KeePass products

📱 High security + interoperability across devices

Perfect for: Android users who want a reliable, open‑source solution for managing passwords without compromising privacy.

Okular is a powerful, multi‑platform document viewer that goes beyond PDFs. It supports comics, ePub books, images, Markdown, and more — all in one sleek interface.

📖 Read PDFs, comics, and ePub books

🖼️ Browse images and visualize Markdown documents

📝 Annotate your PDFs with ease

✍️ First‑class signature support

💻 Fast, feature‑packed, and cross‑platform (Windows & Linux)

Perfect for: Users who want a versatile, free, and open‑source document viewer that handles almost any format.

RustDesk is a full‑featured, open‑source alternative to TeamViewer, giving you secure remote control with minimal configuration.

🔑 End‑to‑end encryption for secure connections

🌐 Self‑hosted option for maximum privacy

⚡ Fast performance with minimal setup

🛠️ Cross‑platform support (Windows, macOS, Linux, Android, iOS)

🤝 Community‑driven and transparent development

Perfect for: Users who want a reliable, private, and flexible remote desktop solution without vendor lock‑in.