Open-source alternatives to popular software
OSS Alternatives covers a small number of proprietary tools in depth rather than a large, shallow directory. Each page below ranks genuinely open-source alternatives by GitHub activity and spells out license, self-hosting, and pricing so you can pick one with confidence.
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Productivity alternatives
DeskTime
Employee time tracking and productivity monitoring
6 alternatives
Suite CRM
Open-source CRM suite for sales and marketing
4 alternatives
Calendesk
Booking and appointment scheduling software
3 alternatives
Brainscape
Flashcard app with confidence-based repetition
1 alternative
MacKeeper
Mac cleaning and optimization utility
3 alternatives
AppCleaner
Free Mac app uninstaller
3 alternatives
Memrise
Language learning app with spaced repetition
1 alternative
TimeCamp
Time tracking and timesheet software
7 alternatives
Insightly
CRM and project management for small businesses
11 alternatives
ZohoCRM
CRM from the Zoho suite
9 alternatives
Fathom
AI meeting recorder with summaries and highlights
4 alternatives
Keap
CRM and marketing automation for small businesses
6 alternatives
3Commas
Crypto trading bots and portfolio tools
2 alternatives
Dext
Receipt capture and bookkeeping automation
8 alternatives
PocketGuard
Personal budgeting and spending tracker
8 alternatives
Jamie AI
AI meeting notes that work without a bot
4 alternatives
Fireflies
AI meeting assistant that records, transcribes, and summarizes calls
4 alternatives
Zoho
Suite of business, CRM, and productivity apps
2 alternatives
Any.do
To-do list, tasks, and daily planner
12 alternatives
Xero
Cloud accounting software for small businesses
4 alternatives
PandaDoc
Document automation, proposals, and e-signatures
5 alternatives
Clay
Data enrichment and outbound sales automation
5 alternatives
Doodle
Meeting scheduling polls and booking pages
3 alternatives
HootSuite
Social media management platform for scheduling, monitoring, and analytics
3 alternatives
Rocket Money
Personal finance app that tracks spending, subscriptions, and bills
4 alternatives
tl;dv
AI meeting recorder for Zoom, Teams, and Google Meet
4 alternatives
Pipedrive
Sales CRM built around deal pipelines
9 alternatives
Otter.ai
AI meeting assistant that records, transcribes, and summarizes meetings
4 alternatives
Post Bridge
Social media scheduling and cross-posting tool for short videos and posts
4 alternatives
Toggl
Time tracking and reporting for freelancers and teams
6 alternatives
Mint
Personal finance app from Intuit for budgeting and spending, since discontinued
11 alternatives
Splitwise
Shared expense tracking and bill splitting
3 alternatives
Resend
Developer email API for transactional and marketing email
12 alternatives
Google Drive
Cloud file storage and collaboration
12 alternatives
Google Keep
Quick notes, checklists, reminders, and sticky-note cards
14 alternatives
Google Translate
Free service for translating text, documents, and web pages
2 alternatives
Superwhisper
Voice dictation app for macOS that types speech into any text field
5 alternatives
Clockify
Time tracking and timesheet software for teams and freelancers
6 alternatives
DocuSign
Electronic signature and agreement management platform
4 alternatives
Buffer
Social media scheduling and publishing tool for creators and small teams
3 alternatives
Apple Notes
Note-taking app synced across Apple devices with iCloud
10 alternatives
Google Workspace
Productivity suite with Gmail, Drive, Docs, Sheets, and Meet
5 alternatives
SAP
Enterprise resource planning software for finance, supply chain, and HR
4 alternatives
Grammarly
AI writing assistant for grammar, spelling, tone, and style
2 alternatives
HubSpot
CRM and marketing platform for sales, marketing, service, and content
13 alternatives
CCleaner
System cleaner for junk files, browser data, registry, and startup items
3 alternatives
Microsoft Office
Word, Excel, PowerPoint, and Outlook productivity suite
3 alternatives
Calendly
Scheduling and booking links for meetings and appointments
3 alternatives
Salesforce
Enterprise CRM platform for sales, service, marketing, and customization
12 alternatives
Attio
Customizable CRM with flexible data models and AI automation
13 alternatives