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Description

JetBrains Junie is an innovative AI coding assistant that works inside many JetBrains IDEs to streamline programming efforts and boost efficiency. This agent leverages advanced AI to help developers write, test, and inspect code without leaving their familiar development environment. Junie offers both code execution and interactive collaboration, allowing programmers to switch between automated code writing and brainstorming sessions for features and improvements. By deeply understanding the codebase, Junie identifies the best ways to tackle tasks and ensures all changes meet quality standards through syntax and semantic checks. It also runs tests to minimize errors and keep the project healthy, freeing developers from routine tasks. Many developers have successfully built complex applications and games using Junie, highlighting its flexibility across different languages and frameworks. The AI adapts to each task’s complexity and workflow, making coding less tedious and more focused on creativity. Whether you are building a simple web app or a complex game, Junie offers smart support throughout the development cycle.

Description

Streamline your development process by automating the generation of pull request summaries. When you open a pull request, you'll receive a concise overview of the changes in mere seconds. This feature allows for quick comprehension of the impact of minor pull requests while also providing a significant advantage when dealing with larger ones. The process of code review often consumes a lot of time due to the necessary dialogue between the reviewer and the author, frequently over trivial changes that could be automated instead. By commenting on specific lines of code with the command /wtd and outlining your desired modifications, What The Diff will propose those adjustments directly within the pull request, enabling you to accept them effortlessly with a single click. Additionally, What The Diff evaluates the modifications in your pull requests and presents a summary in straightforward language, eliminating the need for manual summaries. With extensive training on a vast array of code data, it supports nearly all programming languages. You can easily install the GitHub app for free and test it out on any of your repositories, making it a valuable tool for enhancing team collaboration. Embrace this technology to significantly reduce the workload associated with code reviews.

API Access

Has API No 

API Access

Has API No 

Screenshots View All

Screenshots View All

Integrations

GitHub Yes 
Claude Fable 5.5 Yes 
Claude Mythos 5 Yes 
Claude Opus 4.8 Yes 
GPT-5 nano Yes 
GPT-5.1 Yes 
GPT-5.1-Codex-Max Yes 
GPT-5.2-Codex Yes 
GPT-5.3 Instant Yes 
GPT-5.4 Yes 
GPT-5.4 Pro Yes 
GPT-5.4 mini Yes 
GPT‑5.4 Thinking Yes 
Gemini 3 Deep Think Yes 
Gemini 3.1 Pro Yes 
Gemini 3.5 Flash Yes 
Gemini 3.5 Flash-Lite Yes 
PhpStorm Yes 
Slack No 
Spawn Yes 

Integrations

GitHub Yes 
Claude Fable 5.5 No 
Claude Mythos 5 No 
Claude Opus 4.8 No 
GPT-5 nano No 
GPT-5.1 No 
GPT-5.1-Codex-Max No 
GPT-5.2-Codex No 
GPT-5.3 Instant No 
GPT-5.4 No 
GPT-5.4 Pro No 
GPT-5.4 mini No 
GPT‑5.4 Thinking No 
Gemini 3 Deep Think No 
Gemini 3.1 Pro No 
Gemini 3.5 Flash No 
Gemini 3.5 Flash-Lite No 
PhpStorm No 
Slack Yes 
Spawn No 

Pricing Details

Free
Free Trial No 
Free Version Yes 

Pricing Details

$19 per month
Free Trial No 
Free Version Yes 

Deployment

Web-Based No 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows Yes 
Mac Yes 
Linux Yes 
Chromebook No 

Deployment

Web-Based Yes 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows No 
Mac No 
Linux No 
Chromebook No 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support Yes 

Customer Support

Business Hours No 
Live Rep (24/7) No 
Online Support Yes 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person No 

Types of Training

Training Docs No 
Webinars No 
Live Training (Online) No 
In Person No 

Vendor Details

Company Name

JetBrains

Founded

2000

Country

Netherlands

Website

www.jetbrains.com/junie/

Vendor Details

Company Name

What The Diff

Website

whatthediff.ai/

Product Features

Application Development

Access Controls/Permissions No 
Code Assistance Yes 
Code Refactoring Yes 
Collaboration Tools No 
Compatibility Testing No 
Data Modeling No 
Debugging No 
Deployment Management No 
Graphical User Interface No 
Mobile Development No 
No-Code No 
Reporting/Analytics No 
Software Development No 
Source Control No 
Testing Management No 
Version Control No 
Web App Development No 

Artificial Intelligence

Chatbot No 
For Healthcare No 
For Sales No 
For eCommerce No 
Image Recognition No 
Machine Learning No 
Multi-Language No 
Natural Language Processing No 
Predictive Analytics No 
Process/Workflow Automation No 
Rules-Based Automation No 
Virtual Personal Assistant (VPA) No 

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