236 + Open Source tools and resources
MailDev
SMTP server & web interface for viewing and testing emails during development.
90-Day Cybersecurity Study Plan
Resources and materials for learning various cybersecurity concepts and technologies.
JSONView
View JSON in a browser, with syntax highlighting, collapsible arrays and objects, and nice readable formatting.
Pitest
State of the art mutation testing system, providing gold standard test coverage for Java and the jvm.
Mailpit
An email and SMTP testing tool with API for developers and automated integration testing.
Winded
An online tool to test responsive layouts that lets you view multiple device sizes simultaneously, just enter a URL to test.
Sniffnet
A user-friendly network monitoring tool, built with Rust, to help you easily keep track of your Internet traffic.
YATTIE
A tool to help testers test by supporting the entire process of exploratory testing, from gathering evidence to generating test reports.
Faker.js UI
Easiliy generate fake (but realistic) data for testing and development using Faker.js.
Monte Media Library
A Java library for processing media data. Supported media formats include still images, video, audio and meta-data.
CSV generator
Web CSV Generator is a web-based random CSV data generator written in JavaScript. It allows to generate CSV files.
Mock Service Worker
Mock API by intercepting requests on the network level. Seamlessly reuse the same mock definition for testing, development, and debugging.
Lockfile Lint
Lint an npm or Yarn lockfile to analyze and detect security issues via predefined security policies.
WebPageTest
A web performance tool providing deep diagnostic information about how a page performs under a variety of conditions.
It Tools
Aggregated set of useful tools that every developer and tester may need once in a while.
