Top 7 syntax-sugar Open-Source Projects

continuable

3 809 5.2 C++

C++14 asynchronous allocation aware futures (supporting then, exception handling, coroutines and connections)
MLStyle.jl

5 387 6.6 Julia

Julia functional programming infrastructures and metaprogramming facilities

Project mention: Mlstyle.jl: “Functionalprogramming.jl” | news.ycombinator.com | 2023-05-22
InfluxDB

www.influxdata.com
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DuctTape

0 176 0.0 Swift

📦 KeyPath dynamicMemberLookup based syntax sugar for Swift.
sspipe

1 145 0.0 Python

Simple Smart Pipe: python productivity-tool for rapid data manipulation
rails_or

0 94 3.6 Ruby

Cleaner syntax for writing OR Query in Rails 5, 6. And also add #or support to Rails 3 and 4.
LangTrans

8 38 7.1 Python

Customize programming languages
Options

1 5 0.0 Swift

Easily create OptionSets from enums in Swift.
WorkOS

workos.com
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The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020). The latest post mention was on 2023-05-22.