Gnumeric is an open-source spreadsheet program. The project states that it starts up quickly and handles large spreadsheets while remaining responsive. Its source code is available under the GNU General Public License version 2 or version 3. The site also lists release notes and resources such as a user's manual and mailing list.
Playscii is an open-source ASCII art, animation, and game creation tool by JP LeBreton for Windows, macOS, and Linux. It requires an OpenGL 2.1-capable video card with GLSL 1.30 support and is offered as a free download. The developer notes that the macOS build is 32-bit and not notarized.
Fastedit is a lightweight Windows text editor built with WinUI3 and C#. It offers tabbed editing, syntax highlighting, line numbers, session snapshots and undockable windows. The project is described as 100% free and open source.
Super Productivity is a free, open-source, privacy-first task manager with built-in time tracking, timeboxing, and focus mode. It works offline with no account required and is available for Windows, macOS, Linux, Android, iOS, and web. Tasks stay on the device by default, with optional sync via Super Sync, WebDAV, or Dropbox, and integrations for GitHub, GitLab, and Jira. All features and platforms are free forever.
Markpad is a markdown viewer and editor for Windows, macOS, and Linux, described as a tabbed Notepad alternative. It offers a GFM preview with syntax highlighting, KaTeX math, Mermaid diagrams, and an embedded Monaco editor with Vim keybindings. It is free and open source and is described as having zero telemetry.
Saber is a cross-platform notes app built for handwriting. Notes are encrypted and stored so the server cannot read them, and can be synced across phones, tablets, and computers. The highlighter renders underneath the text without overlapping itself, notes can be organized into nested folders, and dark mode darkens the notes as well as the interface. The software is free and open source.
FreeFileSync is a free open source data backup application for comparing and synchronizing files and folders on Windows, macOS and Linux. It determines differences between a source and target folder and transfers only the minimum data needed rather than copying every file. The website also references a separate Business Edition available for license extension.
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Playscii is an open-source ASCII art, animation, and game creation tool by JP LeBreton for Windows, macOS, and Linux. It requires an OpenGL 2.1-capable video card with GLSL 1.30 support and is offered as a free download. The developer notes that the macOS build is 32-bit and not notarized.
Fastedit is a lightweight Windows text editor built with WinUI3 and C#. It offers tabbed editing, syntax highlighting, line numbers, session snapshots and undockable windows. The project is described as 100% free and open source.
Super Productivity is a free, open-source, privacy-first task manager with built-in time tracking, timeboxing, and focus mode. It works offline with no account required and is available for Windows, macOS, Linux, Android, iOS, and web. Tasks stay on the device by default, with optional sync via Super Sync, WebDAV, or Dropbox, and integrations for GitHub, GitLab, and Jira. All features and platforms are free forever.
Markpad is a markdown viewer and editor for Windows, macOS, and Linux, described as a tabbed Notepad alternative. It offers a GFM preview with syntax highlighting, KaTeX math, Mermaid diagrams, and an embedded Monaco editor with Vim keybindings. It is free and open source and is described as having zero telemetry.
Saber is a cross-platform notes app built for handwriting. Notes are encrypted and stored so the server cannot read them, and can be synced across phones, tablets, and computers. The highlighter renders underneath the text without overlapping itself, notes can be organized into nested folders, and dark mode darkens the notes as well as the interface. The software is free and open source.
FreeFileSync is a free open source data backup application for comparing and synchronizing files and folders on Windows, macOS and Linux. It determines differences between a source and target folder and transfers only the minimum data needed rather than copying every file. The website also references a separate Business Edition available for license extension.
