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Install Download.sa on iPhone or iPad: tap the Share button, then choose “Add to Home Screen”.

Open-source alternatives to Apostrophe

Projects with an open-source licence: you can inspect, modify and self-host the code.

Same categories and verticals plus the editors' list, in an independent order. Partners and ads never change it.

  1. ONLYOFFICE Desktop Editors

    Ascensio System SIA (ONLYOFFICE)

    87

    Modern document editors with high compatibility

    Open source 85 WindowsLinuxmacOS
  2. PDFsam Basic

    Sober Lemur S.r.l.s. (PDFsam)

    87

    Merge and split PDF files for free

    Open source 85 WindowsLinuxmacOS
  3. GnuCash

    GnuCash Project

    87

    Accounting for individuals and small businesses

    Open source 80 WindowsLinuxmacOS
  4. Kile

    KDE e.V.

    87

    LaTeX Frontend

    Open source 77 Windows
  5. 87

    One command-line tool for Drive, Gmail, Calendar, Sheets, Docs, Chat, Admin, and more. Dynamically built from Google Discovery Service. Includes AI agent skills.

    Open source 60 Windows
  6. LibreOffice

    The Document Foundation

    77

    Free office suite compatible with Office files

    Open source 80 WindowsLinuxmacOS
  7. Thunderbird

    MZLA Technologies (Thunderbird)

    77

    Free email and calendar

    Open source 80 WindowsLinuxmacOSAndroid
  8. KatanA Desktop

    HiroyukiFuruno

    72

    KatanA Desktop

    Open source 77 Windows
  9. Okular

    KDE e.V.

    72

    View and annotate documents

    Open source 72 Linux
  10. Time tracker

    Open source 77 macOS
  11. Actual Budget

    Actual Budget

    67

    A local-first personal finance app

    Open source 77 WindowsLinux
  12. 67

    Memory training application

    Open source 77 LinuxmacOS
  13. AppFlowy

    AppFlowy-IO

    67

    The Open Source Alternative To Notion.

    Open source 77 WindowsLinuxmacOS
  14. 67

    基于大模型的文档校对、格式调整与降低 AI 率软件

    Open source 77 Windows
  15. CalDavSynchronizer

    Gerhard Zehetbauer

    67

    Sync Outlook Everywhere

    Open source 77 Windows
  16. CherryTree

    Giuseppe Penone

    67

    A hierarchical note taking application, featuring rich text and syntax highlighting, storing data in a single xml or sqlite file.

    Open source 77 WindowsLinux
  17. CopyQ

    Lukas Holecek

    67

    Clipboard manager with advanced features

    Open source 77 WindowsLinux
  18. Corresync

    nkiyohara

    67

    Local-first guarded mail and calendar CLI and MCP server

    Open source 77 Windows
  19. 67

    Multi-platform client-side cloud file encryption tool

    Open source 77 LinuxmacOS
  20. Dangerzone

    Freedom of the Press Foundation

    67

    Take potentially dangerous PDFs, office documents, or images and convert them to safe PDFs

    Open source 77 Windows
  21. 67

    Turn books, documents and comics (EPUB, PDF, MOBI, FB2, CBZ and more) into local HTML you can read, then translate with your browser's own page translation. OCR for scans. Optional Google Cloud or Ollama translation.

    Open source 77 Windows
  22. 67

    Dictionary and translator app

    Open source 77 macOS
  23. EbookTalker

    DeXPeriX

    67

    Application for converting normal books to audio books

    Open source 77 Windows
  24. 67

    Cross-platform Text Expander written in Rust

    Open source 77 macOS
  25. FreeShow

    ChurchApps

    67

    FreeShow is a free and open-source, user-friendly presenter software.

    Open source 77 Windows
  26. gam

    GAM Team - google-apps-manager@googlegroups.com

    67

    command line management for Google Workspace

    Open source 77 Windows
  27. Gemini Desktop

    Suresh Janaki Reddy

    67

    Modern native desktop client for Gemini CLI via Agent Client Protocol (ACP)

    Open source 77 WindowsLinux
  28. GLab

    GitLab

    67

    An open-source GitLab command line tool bringing GitLabs cool features to your command line

    Open source 77 WindowsLinux
  29. GNU Emacs

    GNU Project

    67

    An extensible, customizable, free/libre text editor - and more.

    Open source 77 WindowsLinux
  30. gogcli

    Peter Steinberger

    67

    gog unifies Gmail, Calendar, Drive, Contacts, Tasks, Sheets, Docs, Slides, and People under one CLI — with JSON output and sane defaults.

    Open source 77 Windows

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Install Download.sa on iPhone or iPad: tap the Share button, then choose “Add to Home Screen”.