Top 6 Open-Source Alternatives to LottaTools

Product categories

API Tools Accounting Communication Developer Tools Document Converter File Converter Group Chat & Notifications HTML To PDF PDF Editor PDF Readers And Editors PDF Tools Productivity

Summary

The top open-source alternatives to LottaTools are Sioyek, Franz, and Anvil API Suite. 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.

Sioyek Landing Page
1

S

Sioyek

Sioyek is a PDF viewer designed for reading research papers and technical books.
Pricing:
- Open Source
#PDF Tools #PDF Editor #iPhone 18 social mentions
Franz Landing Page
2

Franz

Franz is your messaging app for WhatsApp, Facebook Messenger, Slack, Gmail, Telegram and many many more.
Pricing:
- Open Source
- Freemium
- €4.0 / Monthly
#Group Chat & Notifications #Messaging #Communication 28 social mentions
Anvil API Suite Landing Page
3

Anvil API Suite

A flexible API for creating, filling, and signing PDFs.
Pricing:
- Open Source
#API Tools #PDF Tools #PDF Conversion API
DjVuLibre Landing Page
4

DjVuLibre

DjVuLibre: Open Source DjVu library and viewer
Pricing:
- Open Source
#PDF Tools #PDF Readers And Editors #File Converter 1 social mentions
CoolNew PDF Landing Page
5

CoolNew PDF

Word to pdf or pdf to word can be easily done with CoolNew PDF. Best pdf editor and totally free pdf reader，easy to use
Pricing:
- Open Source
- Freemium
- Free Trial
- $6.0 / Monthly (Pro,1 user)
#PDF #PDF Tools #PDF Readers And Editors 2 user reviews
Serverless Invoices Landing Page
6

Serverless Invoices

Free, serverless invoice generator - open sourced
Pricing:
- Open Source
#Productivity #User Experience #Developer Tools