Top Open‑Source Tools for Developers: From Go Alerts to Python Style Guides

Below is a curated list of open‑source software discovered up to September 2019, covering languages such as Ruby, Python, Rust, C, JavaScript, and Go, and including tools for web development, operations, and developer utilities.

sampler

A visual alert tool that runs in the shell; developers configure a simple YAML file to operate. Implemented in Go.

URL: https://github.com/sqshq/sampler

hyperfine

A command‑line performance benchmark tool.

URL: https://github.com/sharkdp/hyperfine

Tiler

A tool for creating various image styles and sizes, supporting multiple shapes. Written in Python.

URL: https://github.com/nuno-faria/tiler

bic

A REPL for C, written in C.

URL: https://github.com/hexagonal-sun/bic

Webhint

A customizable code linting tool that checks best practices and common errors, helping improve website usability, performance, and cross‑browser compatibility. Written in TypeScript.

URL: https://github.com/webhintio/hint

pychubby

A facial deformation tool similar to effects found in TikTok.

URL: https://github.com/jankrepl/pychubby

hypothesis-auto

An extension for the Hypothesis project that automatically tests code annotations. Developed in Python.

URL: https://timothycrosley.github.io/hypothesis-auto/

dry-effects

A production‑ready implementation of algebraic effects in Ruby.

URL: https://dry-rb.org/gems/dry-effects/0.1/

wemake-python-styleguide

The most strict Python style guide ever, containing over 1000 rules covering code quality, best practices, algorithmic complexity, and naming. It can be integrated into existing codebases with a single command. Written in Python.

URL: https://github.com/wemake-services/wemake-python-styleguide