Free and open source multiphysical simulation software Elmer is computational tool for multi-physics problems. Elmer includes physical models of fluid dynamics, structural mechanics, electromagnetics, heat transfer and acoustics, for example. These are described by partial differential equations which Elmer solves by the Finite Element Method (FEM). Additional information:Developer: CSC – IT Center for Science Ltd.License: LGPL-2.0-onlyVersion: 26.2.1

Double-entry accounting and payroll for small business indiAccounting is a complete double-entry accounting and payroll application for small businesses, with a native desktop interface. It keeps a real general ledger behind the scenes, so your invoices, bills, and payroll all flow into proper financial statements — no spreadsheets, no monthly fees. Features include: Invoices and estimates, with customer payments and recurring invoices Bills, vendor payments, and purchase orders with receiving Accrual-basis double-entry general ledger and manual journal entries Payroll with federal and all-50-state withholding, FICA, FUTA, SUTA, and prevailing-wage / certified payroll Sales tax tracking by jurisdiction, reporting, and filing Inventory and product/service catalog Bank statement import and reconciliation Financial reports: profit and loss, balance sheet, trial balance, cash flow, A/R and A/P aging, and general ledger 1099-NEC vendor reporting and W-2 payroll forms Budgets with budget-vs-actual Mileage and time tracking Late fees, payment reminders, and customer statements CSV import and export, and PDF invoices and estimates Receipt capture and document attachments Automatic verified local backups indiAccounting respects your privacy and works entirely offline. Your company's books are stored in a local file on your own computer and never leave your machine. Additional information:Developer: Indomitus GroupLicense: LicenseRef-proprietary=https://indomitusgroup.com/indiaccounting/indiaccounting-license/Version: 1.0.2

Rename batches of files Stencil is a batch file renamer for GNOME. Build a rename queue from stackable operations and preview every result before you commit. Operations include: Number - add a sequential counter Set Extension - change, normalize or remove the extension Insert Text - add text before, after or at a position Find & Replace - literal or regular-expression replacement Change Case - lower, upper, title or sentence case Trim & Remove - drop characters and clean up whitespace Date & Time - prefix or suffix a formatted timestamp Save your operation queues as presets, import and export them, and undo any rename. Additional information:Developer: René FouquetLicense: GPL-3.0-or-laterVersion: 1.0.3

Grab the audio from your CD-ROMs Audex is a CD ripper application. It lets you extract the audio from your CDs to let you listen to them on your computer and your other devices. It includes CDDB and MusicBrainz integrations to fetch the metadata and covers for your CDs if available. Additional information:Developer: KDELicense: GPL-2.0Version: 26.04.2

Recover passwords from their hash.Lockpicker is essentially a GUI frontend to hashcat, an advanced password recovery utility. Using lockpicker, you can recover a password from its hash straight from a modern GNOME-native interface without the hassle of dealing with hashcat syntax. Lockpicker is meant for academic purposes, and is an ideal tool to start learning about password recovery or to work with CTF (capture the flag) assignments. Note that Lockpicker ships with vanilla Hashcat, and does not provide any functionality that is not available from hashcat itself. However, you can easily provide your own wordlists or hashcat modules or kernels from the GUI. Additional information:Developer: Sjoerd StendahlLicense: GPL-3.0-or-laterVersion: 1.1.0

Radio Signals Recognition Manual Artemis is a software designed to assist radio frequency (RF) signal identification and storage. It simplifies real-time spectrum analysis by leveraging one of the most extensive and community-driven databases, containing over 500 recognized signals. This comprehensive software solution allows users to collect RF signals with specific parameters such as frequency, bandwidth, modulation, etc. Users can also store spectrum waterfalls, audio samples, and all types of documents for future reference. Artemis provides a robust platform to manage a wide range of RF data with precision and ease. Artemis enhances RF propagation analysis with comprehensive space weather tracking. It offers near real-time (5-minute) data and forecasts to help users anticipate the effects of solar and geomagnetic conditions on RF communications. Additional information:Developer: AresValleyLicense: GPL-3.0-or-laterVersion: 4.1.0

Challenging pentomino puzzlePentominos are used as jigsaw pieces and there are many different board shapes to fill with them. Additional information:Developer: Thorsten RothLicense: GPL-3.0-or-laterVersion: 1.5.1

Browse and edit source codeSource-code editor, with basic project support. It can be enhanced with extensions. Main features: Syntax highlighting Dark/light themes Project browser Search in file or project, with regex support Symbols of active source file Extendable command bar Block/column edition mode Additional information:Developer: the EdiTidE authorsLicense: CC0-1.0 AND CC-BY-SA-3.0 AND LGPL-2.1-or-laterVersion: 4.0.1

Privacy-focused Telegram forkMercurygram Desktop is an unofficial, privacy and security focused fork of Telegram Desktop. It is the desktop counterpart of the Mercurygram Android client, built by rebasing Mercurygram patches on top of upstream Telegram Desktop. It connects to the regular Telegram network over the MTProto protocol while adding extra privacy and anti-tracking mitigations on top of the upstream client. Its headline feature is support for end-to-end encrypted secret chats on the desktop — something the official Telegram Desktop client and most other desktop forks do not offer. Mercurygram is not affiliated with or endorsed by Telegram FZ-LLC. Builds are signed with Mercurygram's own update keys and the in-app updater points at the Mercurygram release server. Please report Mercurygram issues to the Mercurygram project, not to upstream Telegram. As a Telegram client it offers the familiar messaging experience: Messages, chats, groups and channels stay synced across all your devices, with the client running standalone without needing your phone connected. Send and receive media and files of any type, with chat history stored in the Telegram cloud. Group chats and channels, bots, photo and video editing, animated stickers, emoji and customizable themes. Additional information:Developer: Mercurygram ContributorsLicense: GPL-3.0-or-laterVersion: 6.9.3

Digs Torrents From The Internet Torrents Digger is a tool to dig torrents from the Internet. You can search torrents from different sources. Features : Multi Source/Sites Support. Shows Torrent Creation Date, Seeders, Leechers, Total Downloads, Torrent Size. User can choose Category, Filters, Sortings, Sortings Order. Bookmark : User can Bookmark torrents. Copy magnet link to Clipboard. Opens Torrent Downloader Apps for Downloading Torrents. Default Trackers Lists : User can Select a Default Trackers List and that trackers List will be added to magnet links. Custom Listings : There are numbers of Custom Listings that shows certain types of torrents. (Like Trending , Latests, etc.) Multiple Themes. Proxy Support : User can use Proxy to route Traffic. Supported Proxy Protocols -> ( HTTP, HTTPS, SOCKS4 & SOCKS5. ) Database Import/Export : User can Export and Import App Database. Cross Platform ( Available for Android, Windows & Linux ). Additional information:Developer: ForTheCommunityLicense: UnlicenseVersion: 1.2.5

Search text in files SeekFast searches text in many document types and shows the most relevant results with document context. It can search documents, PDF files, spreadsheets, presentations, e-books, email files, media metadata, and plain text/source files. Additional information:Developer: Slaviana Soft Ltd.License: LicenseRef-proprietary=https://seekfast.org/termsVersion: 7.4

Pocket Science LabAn all-in-one open-source laboratory for scientific experiments and electronic measurements. The Pocket Science Lab (PSLab) app pairs with open-source PSLab hardware to give you an array of essential measuring instruments in a single interface. Designed for makers, educators, and engineers. Available instruments: Oscilloscope Multimeter Logic Analyzer Waveform Generator Power Source Luxmeter Barometer Accelerometer Gyrometer Compass Thermometer Gas Sensor Dust Sensor Robotic Arm Controller Additional information:Developer: FOSSASIALicense: Apache-2.0Version: 4.17.68

MeshCore mesh network client Meshy is a client for MeshCore LoRa mesh networking devices. Connect to your companion device over Bluetooth to send and receive encrypted messages, manage contacts, configure channels, and monitor your mesh network. Features: Bluetooth LE and USB serial connectivity End-to-end encrypted messaging Public, private, and hashtag channels Contact management with location tracking Interactive map view with route tracing Device and repeater management QR code scanning for quick contact exchange Additional information:Developer: Jiri EischmannLicense: GPL-3.0-or-laterVersion: 26.06

A relaxing polyomino puzzle game for GNOME Fill the board using reusable polyomino pieces. Rotate, flip and combine shapes to solve handcrafted levels or play endlessly generated puzzles. Additional information:Developer: LlucioccLicense: GPL-3.0-or-laterVersion: 1.1.0

A free graphical user interface for data boxes**Note: This is a community package of Mobile Datovka and not officially supported by CZ.NIC.** Datovka is a multiplatform mobile application for accessing data boxes. A data box is an electronic storage site in Czech Republic. It is intended for delivery of official documents and for communication with public authority bodies. Mobile Datovka allows receiving and sending of data messages together with some useful functions. Additional information:Developer: CZ.NIC, z.s.p.o.License: GPL-3.0-or-laterVersion: 2.6.4

Data analysis for engineers With ScryLab, data from a running Python environment or from measurement files can be explored in interactive plots for side-by-side comparison and analysis. It includes line, scatter, XY, frequency and spectrogram views, plus tools from simple operations like addition, derivative and integral to advanced analysis such as FFT and STFT, including moving averages and regression. Supports MDF (.mf4, .mf3) and HDF5 (.h5, .hdf5) measurement files and provides a local REST API for signal upload from any programming environment or toolchain. Additional information:Developer: Dominik TirschlerLicense: LicenseRef-proprietary=https://scrylab.de/terms-and-conditions/Version: 0.1.10

Playback of files ripped from CDsCD Files Play is a group of programs used to configure and play audio CD files, using the MusicBrainz online music database. The main GUI application accesses a directory of CD binary files (ripped directly from CDs) and matching TOC/CUE files. It plays these files directly, storing the artist names, CD titles, track titles, etc, locally in config files. It also features downloading, displaying and browsing of the CD cover art. Additional information:Developer: Mark J. SkinnerLicense: GPL-2.0-onlyVersion: 0.2

Add digital signatures to PDF documentsJSignPdf is a free, open source application that adds digital signatures to PDF documents. It supports visible and hidden signatures, certificate levels, timestamping, and batch processing from the command line. Features: Visible and hidden digital signatures Certificate levels and timestamping (TSA) PDF encryption and rights management Certificate revocation checks (CRL, OCSP) Command-line batch processing PKCS#11 hardware token support Additional information:Developer: JSignPdf ProjectLicense: MPL-2.0 AND LGPL-2.1-onlyVersion: 2.3.0

Encrypt your files Xecrets Ez is a true zero-knowledge desktop file and text encryption application that uses strong AES-256 encryption to password protect your files. Encrypted files use the .axx extension and remain protected wherever they go — cloud storage, email, USB drives or backups — because the encryption always follows the file. No data or passwords will ever leave your device. Unlike container-based or folder-based encryption solutions, Xecrets Ez encrypts files individually so protection is never lost when a file is moved or copied. It works entirely offline: no internet connection, no servers, no accounts required. Features include (some require Premium): AES-256 encryption Encrypt and decrypt individual files or all files in folders Encrypt text messages directly in the application Open and edit encrypted files with automatic re-encryption YubiKey hardware security key support SLIP-39 Shamir's Secret Sharing for password backup Available in English, Français, Deutsch, Italiano, Español, Português and Svenska No internet connection is ever used 100% compatible with AxCrypt Cross-platform: Linux, Windows and macOS It is entirely free for encryption and decryption of files, with full security. Premium features require a low-cost subscription with a 10-day free trial. A 3-day premium trial is also available without a credit card. Additional information:Developer: Axantum Software ABLicense: LicenseRef-proprietary=https://www.axantum.com/terms AND GPL-3.0-or-laterVersion: 2.3.1573

A cross-platform Jellyfin client Fladder is a modern, cross-platform Jellyfin client that provides a seamless media streaming experience. Built with Flutter, it offers a beautiful and intuitive interface for accessing your Jellyfin media library. Features: Stream movies, TV shows, and music from your Jellyfin server Beautiful and responsive user interface Hardware-accelerated video playback Support for multiple profiles Offline media downloads Cross-platform compatibility Additional information:Developer: DonutWareLicense: GPL-3.0-onlyVersion: 0.10.3

Create and manage network tunnels Carabiner is an easy-to-use utility for HTTP, UDP, or TCP services. Share local web servers, game servers, or other network services. Ngrok, Playit, and Cloudflare tunnels. Simple setup wizards for creating new tunnels Live monitoring of tunnel status and details Background service support for persistent tunnels Additional information:Developer: SugarycandybarLicense: GPL-3.0-or-laterVersion: 1.0.2

Minimalist note taking widgetWhisp is a beautifully simple, gesture-driven note-taking application designed for GNOME. Features include: Live Markdown formatting (bold, italics, headers, code, lists) Swipe navigation between notes Searchable note list directly from the header Instant saving and Native UI styling Additional information:Developer: Tanay BhomiaLicense: GPL-3.0-or-laterVersion: 1.3.3

Gestion des feuilles de match**This app is only available in French.** FDME - FFHandball est l’application officielle de la FFHandball pour réaliser la feuille de match électronique, du pré‑match à l’export dans GestHand. Saisie des compositions d'équipes et des licenciés Enregistrement des événements de match en temps réel Validation et signature électronique des feuilles Synchronisation automatique avec les serveurs Gesthand Fonctionnement hors ligne après téléchargement préalable de la base. Additional information:Developer: Fédération Française de HandballLicense: LicenseRef-proprietary=https://www.ffhandball.fr/politique-de-confidentialite-fdme/Version: 1.0.61

A sleek, multi-engine download manager Tur is a modern, native download manager built on a high-performance Rust core (tur-rs). It supports multiple download engines including its own adaptive range-stealing engine and external engines like aria2c, with yt-dlp integration for media downloads. Features: Multi-engine support: native tur-rs, aria2c, yt-dlp Persistent download queue with SQLite (UUID v7 IDs) Parallel segmented downloading for maximum speed Clean, modern UI with per-download instance view System tray integration and notifications Configurable settings per engine Additional information:Developer: greykaizenLicense: GPL-3.0-or-laterVersion: 0.5.0

Event and task manager Eventix is an iCalendar event and task manager for Linux desktops supporting CalDAV and Microsoft 365 (Exchange). It runs a local web server that provides a calendar UI, and ships a GTK desktop wrapper that embeds that UI in a native application window with system tray integration. Most important features: Monthly, weekly, and list calendar views Event and task management with full create / edit / delete support Recurrent events and tasks Organized events with attendees and accept/decline Alarm / notification system with per-calendar personal alarm overrides CalDAV synchronization via vdirsyncer (bundled) Microsoft 365 synchronization via DavMail (bundled) Local filesystem calendar support (no sync required) iCalendar (.ics) file import via a GTK dialog System tray icon showing due-today and overdue task counts Additional information:Developer: Nils AsmussenLicense: GPL-3.0-or-laterVersion: 1.0.10

3D model viewer MegaMesh is a 3D model viewer with fast GPU accelerated rendering and support for a variety of mesh formats. Key features: Custom Vulkan based renderer Support for OBJ, FBX, STL and other popular formats Customizable, per object, material properties including diffuse and specular colors Flexible camera controls including adjustable speed, orbiting and free flight Support for loading multiple models onto the scene Additional information:Developer: Atanas GeorgievLicense: GPL-3.0-or-laterVersion: 1.0.5

Secure Messenger, No trackingDiscover Keet, the ultimate decentralized, peer-to-peer communication platform. Enjoy secure, private, and efficient messaging and file sharing without intermediaries. Experience true digital privacy and freedom with Keet. Features: Decentralized Communication: No central servers, ensuring privacy. Peer-to-peer Messaging: Direct, secure conversations. End-to-end Encryption: Full privacy and security for all messages. Enhanced Video Calls: High-quality, secure video communications. Unlimited File Sharing: Share files without size limitations. Additional information:Developer: Tether Data S.A. de C.V.License: LicenseRef-proprietary=https://keet.io/application-terms/Version: 4.17.1

Linux music player for NetEase Cloud MusicCloudMusicPlayer is a Linux music player for NetEase Cloud Music. It provides desktop playback, playlists, synced lyrics, comments, and optimizations for large music libraries. The original upstream project is NetEase Cloud Music Gtk. This project is not affiliated with NetEase Cloud Music. Additional information:Developer: b1nggggLicense: GPL-3.0-or-laterVersion: 1.0.3

Free train simulator OpenBVE is an open-source train driving simulator. It features detailed per-car simulation of the brake systems, friction, air resistance, toppling and more. Additional information:Developer: OpenBVE ProjectLicense: BSD-2-ClauseVersion: 1.13.0.2

Native music clientNative music client for your music servers and local music folders, with built-in Discord and Last.fm integration Can connect to multiple Jellyfin, Subsonic, Navidrome servers as well as multiple local folders, and can seamlessly switch between them Built-in Last.fm, Libre.fm, and ListenBrainz scrobbling Discord Rich Presence Automatic lyrics/cover art lookup Smart playlists that support multiple combinations And other music player basics Additional information:Developer: screwysLicense: GPL-3.0-or-laterVersion: 0.7.7