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Open Source Productivity & Utilities

A curated collection of the best open source everyday desktop and mobile utilities for notes, tasks, files, email, passwords, automation, screen capture, and keeping a machine tidy and fast.

See also:Office SuitesNote Taking & Knowledge ManagementPassword & Secret ManagementScreen Capture & RecordingFile Management & SyncEmail & CommunicationBrowsers & ExtensionsAutomationTime & Task ManagementPersonal Finance ManagementDesign & VisualizationBookmark & Content ManagementRemote Desktop & AccessSystem Cleanup & OptimizationInput & DictationMaps & Navigation
Favicon of OpenWispr

OpenWispr

AI
Voice-to-text that works offline, privately, on any app

  • Stars

    5,673

  • Last commit

    7 hours ago

  • License

    MIT
Dictation app powered by OpenAI Whisper and NVIDIA Parakeet. Runs locally on macOS, Windows, and Linux with zero data retention and 100+ language support.

Open Source Alternative to:

Favicon of Wispr Flow
Wispr Flow
Favicon of Tuta

Tuta

Secure email, calendar and contacts with end-to-end encryption

  • Stars

    7,866

  • Last commit

    2 days ago

  • License

    GPL-3.0
Tuta offers encrypted email, calendar and contacts with quantum-resistant security, protecting your privacy without ads or tracking.

Open Source Alternative to:

Favicon of Gmail
Gmail
Favicon of CryptPad

CryptPad

Secure collaboration with end-to-end encryption

  • Stars

    7,856

  • Last commit

    2 days ago

  • License

    AGPL-3.0
Open-source collaboration suite offering encrypted document editing, file sharing, and team workspaces with complete privacy protection.

Open Source Alternative to:

Favicon of Microsoft Word
Microsoft Word
Favicon of OpenCloud

OpenCloud

Self-hosted file sharing built for digital sovereignty

  • Stars

    5,846

  • Last commit

    2 days ago

  • License

    Apache-2.0
Self-hostable cloud file management and collaboration platform with an integrated office suite, zero-trust security, and GDPR compliance for teams and organizations.

Open Source Alternative to:

Favicon of Google Drive
Google Drive
Favicon of Requestly

Requestly

Intercept, modify, and debug HTTP(S) requests effortlessly

  • Stars

    6,750

  • Last commit

    2 days ago

  • License

    AGPL-3.0
A powerful browser extension and desktop app for developers to manipulate network requests, debug APIs, and improve web app testing

Open Source Alternative to:

Favicon of Postman
Postman
Favicon of ONLYOFFICE Docs

ONLYOFFICE Docs

Complete office suite for documents, spreadsheets & more

  • Stars

    6,846

  • Last commit

    1 month ago

  • License

    AGPL-3.0
Open-source online editor for documents, spreadsheets, presentations, and PDFs. Features real-time collaboration, AI integration, and accessibility tools.

Open Source Alternative to:

Favicon of Microsoft 365
Microsoft 365
Favicon of Plunk

Plunk

The open-source, affordable email platform

  • Stars

    5,384

  • Last commit

    1 day ago

  • License

    AGPL-3.0
Plunk unifies marketing, transactional, and broadcast emails into a single, complete solution for businesses of all sizes.

Open Source Alternative to:

Favicon of Resend
Resend
Favicon of Standard Notes

Standard Notes

Secure, encrypted notes for your digital life

  • Stars

    6,598

  • Last commit

    5 days ago

  • License

    AGPL-3.0
Cross-platform note-taking app with end-to-end encryption, offline access, and powerful organization features for privacy-conscious users.

Open Source Alternative to:

Favicon of Obsidian
Obsidian
Favicon of BleachBit

BleachBit

Clean your system and free disk space

  • Stars

    6,673

  • Last commit

    4 hours ago

  • License

    GPL-3.0
BleachBit frees disk space & protects privacy by deleting cache, cookies, history & temp files from Firefox, Chrome & more. Open source for Linux/Windows.

Open Source Alternative to:

Favicon of CCleaner
CCleaner
Favicon of ezBookkeeping

ezBookkeeping

Lightweight self-hosted bookkeeping with AI receipt scanning

  • Stars

    5,448

  • Last commit

    4 hours ago

  • License

    MIT
A privacy-first personal finance app with two-level accounts, multi-currency support, AI receipt recognition, and broad data import from formats like GnuCash and Firefly III.

Open Source Alternative to:

Favicon of YNAB
YNAB
Favicon of useSend

useSend

Pay per email sent, not for contact storage

  • Stars

    4,629

  • Last commit

    5 hours ago

  • License

    AGPL-3.0
Open source email platform for transactional and marketing emails. Self-host or use cloud service with transparent pricing - pay only for emails sent.

Open Source Alternative to:

Favicon of Resend
Resend
Favicon of Passbolt

Passbolt

Secure password management for teams

  • Stars

    6,086

  • Last commit

    3 days ago

  • License

    AGPL-3.0
Open source password manager focused on security, collaboration and privacy for organizations

Open Source Alternative to:

Favicon of LastPass
LastPass
Favicon of OSMAnd

OSMAnd

Navigate anywhere with detailed offline maps and GPS

  • Stars

    5,923

  • Last commit

    5 hours ago

  • License

    Unknown
Comprehensive offline navigation app with detailed maps, turn-by-turn guidance, and specialized routing for hiking, cycling, and walking worldwide.

Open Source Alternative to:

Favicon of Google Maps
Google Maps
Favicon of Kimai

Kimai

Effortless time tracking for teams and projects

  • Stars

    4,933

  • Last commit

    4 days ago

  • License

    AGPL-3.0
Open-source time tracking solution for businesses of all sizes. Manage projects, track billable hours, and generate insightful reports.

Open Source Alternative to:

Favicon of Clockify
Clockify
Favicon of Deta Surf

Deta Surf

Browser and notebook combined with local-first AI

  • Stars

    3,533

  • Last commit

    6 days ago

  • License

    Apache-2.0
A browser that doubles as a personal notebook, letting you research, summarize, and take notes on web pages, PDFs, and videos without switching apps.

Open Source Alternative to:

Favicon of NotebookLM
NotebookLM
Favicon of IronCalc

IronCalc

A spreadsheet engine you can embed, self-host, or run in the browser

  • Stars

    4,115

  • Last commit

    1 day ago

  • License

    Apache-2.0
IronCalc is an open-source, Rust-powered spreadsheet engine with .xlsx support, 300+ functions, and bindings for JavaScript and Python.

Open Source Alternative to:

Favicon of Microsoft Excel
Microsoft Excel
Favicon of Zen

Zen

System-wide ad-blocking and privacy protection, no extensions needed

  • Stars

    4,136

  • Last commit

    23 hours ago

  • License

    MIT
Free, open-source desktop app that blocks ads, trackers, and surveillance scripts across all browsers and apps on Windows, macOS, and Linux.

Open Source Alternative to:

Favicon of AdGuard
AdGuard
Favicon of Freescout

Freescout

Open-source helpdesk for seamless customer support

  • Stars

    4,497

  • Last commit

    3 days ago

  • License

    AGPL-3.0
Self-hosted email management system with shared inboxes, automation, and powerful collaboration features for efficient customer support.

Open Source Alternative to:

Favicon of Zendesk
Zendesk
Favicon of Wakapi

Wakapi

Track coding time effortlessly, gain insights instantly

  • Stars

    4,408

  • Last commit

    2 days ago

  • License

    MIT
Open-source, self-hosted time tracking solution for developers. Analyze coding habits, improve productivity, and visualize progress.

Open Source Alternative to:

Favicon of Clockify
Clockify
Favicon of LibreOffice

LibreOffice

Free office suite with Microsoft compatibility

  • Stars

    4,262

  • Last commit

    7 hours ago

  • License

    GPL-3.0
Complete free office suite compatible with Microsoft formats (.doc, .docx, .xls, .xlsx, .ppt, .pptx). Open source alternative with regular updates.

Open Source Alternative to:

Favicon of Microsoft Word
Microsoft Word
Favicon of Ueli

Ueli

Quick access to apps and files with keyboard shortcuts

  • Stars

    4,583

  • Last commit

    3 days ago

  • License

    MIT
A keyboard-driven launcher that helps you quickly find and open applications, files, and bookmarks across Windows, macOS, and Linux

Open Source Alternative to:

Favicon of Raycast
Raycast
Favicon of Collabora Online

Collabora Online

Open-source document editing suite for secure collaboration

  • Stars

    3,324

  • Last commit

    5 days ago

  • License

    Unknown
Powerful online document editor with Microsoft Office compatibility. Integrate into your infrastructure or use trusted hosting partners for secure team collaboration.

Open Source Alternative to:

Favicon of Microsoft Word
Microsoft Word
Favicon of Spliit

Spliit

Effortlessly split expenses with friends and roommates

  • Stars

    2,875

  • Last commit

    4 days ago

  • License

    MIT
A user-friendly app for tracking shared expenses, settling debts, and managing group finances with ease and transparency.

Open Source Alternative to:

Favicon of Splitwise
Splitwise
Favicon of Ryot

Ryot

Track your life, your way

  • Stars

    3,560

  • Last commit

    4 hours ago

  • License

    GPL-3.0
Ryot is a versatile platform for effortlessly tracking media, fitness, and more, replacing manual methods like spreadsheets.

Open Source Alternative to:

Favicon of Notion
Notion
Favicon of Sol

Sol

Fast and beautiful launcher for quick access to apps and tools

  • Stars

    3,075

  • Last commit

    4 days ago

  • License

    MIT
A modern macOS launcher that provides instant access to applications, utilities, and system functions through an elegant and efficient interface.

Open Source Alternative to:

Favicon of Raycast
Raycast
Favicon of Financial Freedom

Financial Freedom

Open-source personal finance management tool

  • Stars

    2,917

  • Last commit

    4 months ago

  • License

    GPL-3.0
Self-hosted alternative to Mint and YNAB for budgeting and building wealth while maintaining full control of your financial data.

Open Source Alternative to:

Favicon of YNAB
YNAB
Favicon of Ray.so

Ray.so

Create beautiful images of your code

  • Stars

    2,344

  • Last commit

    5 days ago

  • License

    MIT
Turn your code into beautiful images. Choose from a range of syntax colors, hide or show the background, and toggle between a dark and light window.
Favicon of CoMaps

CoMaps

Navigate anywhere offline with complete privacy

  • Stars

    2,003

  • Last commit

    4 hours ago

  • License

    Apache-2.0
Offline navigation app for hiking, biking, and driving. No tracking, no data collection, community-driven maps. Works without internet connection.

Open Source Alternative to:

Favicon of Google Maps
Google Maps
Favicon of Kanri

Kanri

Simplify your workflow with offline Kanban boards

  • Stars

    2,004

  • Last commit

    2 days ago

  • License

    GPL-3.0
Kanri is a free, open-source personal Kanban app that works offline, offering a modern and simple experience while respecting your privacy.

Open Source Alternative to:

Favicon of Monday
Monday
Favicon of Keila

Keila

Open-source email marketing for the privacy-conscious

  • Stars

    2,190

  • Last commit

    5 days ago

  • License

    AGPL-3.0
Self-hosted newsletter platform with powerful features, data protection, and full control over your mailing lists and campaigns.

Open Source Alternative to:

Favicon of Substack
Substack
Favicon of Sync-in

Sync-in

Open-source file storage with complete data sovereignty

  • Stars

    1,693

  • Last commit

    17 days ago

  • License

    AGPL-3.0
Secure, open-source platform for file storage, sharing, and collaboration. Host your data on your own infrastructure with full control and transparency.

Open Source Alternative to:

Favicon of Google Drive
Google Drive
Favicon of Peergos

Peergos

Secure, private, and decentralized file storage

  • Stars

    2,448

  • Last commit

    14 hours ago

  • License

    AGPL-3.0
A peer-to-peer encrypted filesystem for secure file storage, sharing, and collaboration with end-to-end encryption and user-controlled data.

Open Source Alternative to:

Favicon of Mega
Mega
Favicon of Vrite

Vrite

Collaborative content creation for technical teams

  • Stars

    1,993

  • Last commit

    2 days ago

  • License

    AGPL-3.0
A powerful platform for technical writing, offering real-time collaboration, version control, and seamless integrations.

Open Source Alternative to:

Favicon of Mintlify
Mintlify
Favicon of SeriesGuide

SeriesGuide

Track your TV shows and movies on Android

  • Stars

    2,146

  • Last commit

    2 days ago

  • License

    Unknown
Android app for tracking TV shows and movies you're watching, have watched, or plan to watch, powered by TMDb data.

Open Source Alternative to:

Favicon of TV Time
TV Time
Favicon of Amical

Amical

AI
Type 10x faster with AI-powered voice dictation

  • Stars

    1,503

  • Last commit

    3 days ago

  • License

    MIT
Open source AI dictation app that transforms speech to text with context-aware formatting. Fast, accurate transcription for meetings, notes, and hands-free typing.

Open Source Alternative to:

Favicon of Wispr Flow
Wispr Flow
Favicon of Padloc

Padloc

Secure password manager with end-to-end encryption

  • Stars

    2,922

  • Last commit

    1 year ago

  • License

    AGPL-3.0
Open-source password manager with end-to-end encryption for passwords, credit cards, notes, and documents. Cross-platform sync with secure sharing capabilities.

Open Source Alternative to:

Favicon of LastPass
LastPass
Favicon of Hexabot

Hexabot

AI
Build and manage AI-powered chatbots with ease

  • Stars

    1,201

  • Last commit

    13 hours ago

  • License

    AGPL-3.0
Hexabot is an open-source platform for creating intelligent, multilingual chatbots without coding complexity.

Open Source Alternative to:

Favicon of Manychat
Manychat
Favicon of Splitpro

Splitpro

Effortlessly split expenses with friends and groups

  • Stars

    1,408

  • Last commit

    7 days ago

  • License

    MIT
Free, open-source expense sharing app with multi-currency support, unequal splits, and receipt uploads. Import from Splitwise and enjoy PWA functionality.

Open Source Alternative to:

Favicon of Splitwise
Splitwise
Favicon of Sendportal

Sendportal

Self-hosted email marketing with unlimited everything

  • Stars

    2,159

  • Last commit

    2 years ago

  • License

    MIT
Open-source email marketing platform offering unlimited subscribers, campaigns, and workspaces. Self-hosted solution with powerful API and beautiful interface.

Open Source Alternative to:

Favicon of Resend
Resend
Favicon of XWiki

XWiki

Open-source knowledge management and collaboration platform

  • Stars

    1,301

  • Last commit

    9 hours ago

  • License

    LGPL-2.1
XWiki is a flexible, feature-rich wiki software that helps organizations structure and share knowledge efficiently.

Open Source Alternative to:

Favicon of Notion
Notion
Favicon of Hoodik

Hoodik

Secure self-hosted cloud storage with end-to-end encryption

  • Stars

    1,447

  • Last commit

    4 hours ago

  • License

    Unknown
Lightweight, self-hosted cloud storage built with Rust and Vue.js. Features end-to-end encryption, file sharing, search capabilities, and Docker deployment.

Open Source Alternative to:

Favicon of Mega
Mega
Favicon of UnInbox

UnInbox

Transform team email into efficient collaborative workflows

  • Stars

    1,755

  • Last commit

    6 months ago

  • License

    AGPL-3.0
Streamline team communication with shared inboxes, unlimited email addresses, and customizable workflows. Perfect for modern businesses seeking organized email management.

Open Source Alternative to:

Favicon of Gmail
Gmail
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