Testing Tools

textual

Build terminal and web UIs with Python's modern web-inspired API

★ 37k · v8.2.8 · python

tokei

Count lines of code across 150+ languages in seconds

★ 15k · v14.0.0 · rust

ali

Real-time HTTP load testing with interactive terminal charts

★ 3.9k · v0.8.0 · go

pudb

Step through Python code with an interactive visual debugger in your terminal

★ 3.2k · v2025.1.5 · python

loadtest

Simulate real-world server loads with precise control and detailed metrics

★ 2.6k · javascript

ink

Build interactive CLIs with React components and Flexbox layouts

★ 40k · v7.1.1 · typescript

scc

Count lines of code, complexity, and project costs in seconds

★ 8.6k · v3.7.0 · go

hurl

Define and execute HTTP requests in plain text format

★ 19k · v8.0.1 · rust

vhs

Record terminal sessions as code, generate shareable GIFs and videos

★ 21k · v0.11.0 · go

lychee

Lightning-fast link validation for any document format

★ 3.8k · vlychee-v0.24.2 · rust

bacon

Real-time Rust code checking with zero friction

★ 3.4k · v3.24.0 · rust

bats-core

Write and run tests for Bash scripts with simple, readable syntax

★ 6.2k · v1.14.0 · shell

gdb-dashboard

Visual debugging interface that displays program state automatically

★ 12k · python

ast-grep

Find, lint, and refactor code using structural patterns instead of text

★ 15k · v0.45.0 · rust

trippy

Advanced network diagnostics combining traceroute and ping capabilities

★ 7.5k · v0.13.0 · rust

mitmproxy

Intercept, inspect, and modify HTTP traffic in real-time

★ 45k · v12.2.3 · python

posting

Terminal-based HTTP client with Vim keybindings and SSH support

★ 12k · v2.10.0 · python

shellcheck

Catch shell script errors before they cause problems

★ 40k · v0.11.0 · haskell

hyperfine

Measure command performance with statistical precision and detailed analysis

★ 29k · v1.20.0 · rust

A curated collection of the best test runners, coverage, and assertion utilities.