Code Bhai — est. for Developers and Testers

You ship software.
We give you the tools to build better.

Interview courses, hands-on labs, and everyday Dev and QA utilities — free, no ads, built for engineers who test for a living.

Utilities Tech Blog RSS

💡 The first computer virus for MS-DOS was called "Brain", created in 1986.

explore the site

Dev & QA Tools

JSON & data

JSON Compare | Beautify JSON/XML → CSV JSON Schema Validator Data Generator

Encode, hash & text

Base64 Encoder/Decoder URL Encoder/Decoder Hash Generator Markdown Editor Regex Tester Text Diff

API & network

JWT Decoder HAR Viewer cURL Parser OpenAPI Viewer Timestamp Converter

Automation & UI

XPath / CSS Selectors Browser Resolution UUID Generator Test String Generator QR Code Generator

Courses Designed to Fit Your Needs

Whether you are starting out or levelling up for interviews, each course is built around real QA scenarios — practical examples, not theory for its own sake.

View all courses

API Course REST APIs, status codes, and interview-style Q&A. Selenium Course Web UI automation concepts for testers. Manual Testing Functional testing fundamentals and practices. GIT Course Version control workflows testers use daily. SQL Course Queries and data validation for test engineers. Linux Course CLI basics for testers and automation.

Tech blog Downloads Subscribe to RSS

Main Menu

You ship software.
We give you the tools to build better.

Popular tools

Dev & QA Tools

JSON & data

Encode, hash & text

API & network

Automation & UI

Courses Designed to Fit Your Needs

Main Menu

QA Practice Labs

Dev & QA Tools

Agile Tools

Courses

You ship software.We give you the tools to build better.

Popular tools

Dev & QA Tools

JSON & data

Encode, hash & text

API & network

Automation & UI

Courses Designed to Fit Your Needs

You ship software.
We give you the tools to build better.