Top 8 Open-Source Alternatives to Best Of Themes

Product categories

CSS Framework Calendar Communication Dashboard Design Collaboration Design Tools Developer Tools Development Tools Email Email Clients Enterprise Communication Prototyping

Summary

The top open-source alternatives to Best Of Themes are Slack Themes, Rainglow Color Themes, and Spark Mail. 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.

Slack Themes Landing Page
1

ST

Slack Themes

Make your Slack pretty with custom themes
Pricing:
- Open Source
#Email #Email Clients #Communication 1 social mentions
Rainglow Color Themes Landing Page
2

Rainglow Color Themes

320+ color themes for a variety of editors and software.
Pricing:
- Open Source
#Email #Developer Tools #Design Tools 2 social mentions
Spark Mail Landing Page
3

Spark Mail

Spark helps you take your inbox under control. Instantly see what’s important and quickly clean up the rest. Spark for Teams allows you to create, discuss, and share email with your colleagues
Pricing:
- Open Source
#Email #Email Clients #Calendar 30 social mentions
Mailspring Landing Page
4

Mailspring

Mailspring is a mail client for Mac, Windows and Linux.
Pricing:
- Open Source
#Email #Email Clients #Calendar 25 social mentions
Static Site Boilerplate Landing Page
5

Static Site Boilerplate

A better workflow for building modern static websites.
Pricing:
- Open Source
#Developer Tools #Development Tools #React
Angle 2 Mockups Landing Page
6

Angle 2 Mockups

A giant Sketch Library for creating app presentations
Pricing:
- Open Source
#Design Tools #Prototyping #Website Design 24 social mentions
Bootstrap Landing Page
7

Bootstrap

Simple and flexible HTML, CSS, and JS for popular UI components and interactions
Pricing:
- Open Source
#CSS Framework #Development Tools #Design Tools 326 social mentions
Loopple Landing Page
8

Loopple

With Loopple, you can build your next Bootstrap Dashboard easily using drag and drop.
Pricing:
- Open Source
#Dashboard #Web App #Web Design