Top 12 Open-Source Alternatives to Penman

Product categories

AI AI Writing APIs Chat GPT Note Taking Notes Open Source Personal Notes Productivity Project Management Task Management Todos

Summary

The top open-source alternatives to Penman are Flipper Zero, Zoho CRM, and window.ai. One of the criteria for ordering this list is the number of mentions that products have on reliable external sources. You can suggest additional sources through the form here.

Flipper Zero Landing Page
1

Flipper Zero

A portable multi-tool device styled as a Tamagotchi
Pricing:
- Open Source
#Health And Fitness #iPhone #Productivity 143 social mentions
Zoho CRM Landing Page
2

Zoho CRM

Omnichannel CRM for Businesses of all sizes
Pricing:
- Open Source
- Freemium
- Free Trial
- $14.0 / Annually ($14 USD/monthly on Annual Subscription.)
#CRM #Productivity #CMS 1 social mentions
window.ai Landing Page
3

w

window.ai

Use your own AI models on the web
Pricing:
- Open Source
#AI #Productivity #Writing Tools
ChatGPT for Google Landing Page
4

ChatGPT for Google

Show ChatGPT response alongside search engines
Pricing:
- Open Source
#Productivity #Marketing #AI 2 social mentions
ChatGPT for Search Engines Landing Page
5

ChatGPT for Search Engines

ChatGPT For Search Engine - Extension for web browsers that shows ChatGPT's response alongside search results
Pricing:
- Open Source
- Free
#Browser Extension #Productivity #Internet Search 1 social mentions
Notabase.io Landing Page
6

Notabase.io

Notabase is a powerful and easy-to-use note-taking app for networked thinking. Connect your ideas together and write more effortlessly.
Pricing:
- Open Source
- Freemium
- Free Trial
#Notes #Note Taking #Personal Knowledge Base 8 social mentions
Logseq Landing Page
7

Logseq

Logseq is a local-first, non-linear, outliner notebook for organizing and sharing your personal knowledge base.
Pricing:
- Open Source
- Free
#Knowledge Management #Note Taking #Knowledge Base 280 social mentions
QuickJots Landing Page
8

QuickJots

Jot down quick notes and auto-save them with QuickJots. Use GitHub Flavoured Markdown to easily embed images, or even task-lists to track to-dos. It's private — all notes stay local; no login or downloads are needed. There's a dark mode too!
Pricing:
- Open Source
- Free
#Note Taking #Task Management #Markdown Editor
Hive Landing Page
9

Hive

Seamless project management and collaboration for your team.
Pricing:
- Open Source
- $12.0 / Monthly (Per user)
#Productivity #Project Management #Task Management 9 social mentions
Trello Landing Page
10

Trello

Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.
Pricing:
- Freemium
- Free Trial
- $12.5 / Monthly (Per user - Business Class)
#Project Management #Task Management #Productivity 231 social mentions
Cal.com Landing Page
11

Cal.com

Cal.com (formerly Calendso) is the open source Calendly alternative.
Pricing:
- Open Source
#APIs #Open Source #Calendar And Scheduling 53 social mentions
Joplin Landing Page
12

Joplin

Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks. The notes are searchable, tagged and modified either from the applications directly or from your own text editor.
Pricing:
- Open Source
- Free
#Note Taking #Notes #Todos 350 social mentions