CoreTools - Developer Tools Suite
A comprehensive collection of 22+ powerful tools designed to streamline your development workflow. From code validation to data analysis, we've got everything you need.
Why Choose CoreTools?
We've created a platform that makes developers' work easier, faster, and more efficient
Instant Processing
All tools work in real-time without delays
Data Security
Your data is processed locally and not stored on servers
24/7 Availability
We work around the clock with 99.9% guaranteed uptime
Responsive Design
Works great on all devices: computers, tablets, and phones
Open Source
Transparency and ability to contribute to project development
Free Forever
All tools are available for free without hidden payments
How It Works?
Just three simple steps to get results
Choose Tool
Browse our collection of 22+ tools and select the one you need
Upload Data
Paste text, upload file, or enter data for processing
Get Result
Instantly get processed result ready for use
Popular Tools
Most used tools by our community
AI Token & Price Calculator
Calculate token usage and estimate costs for AI models. Get accurate token counts and pricing estimates for your AI applications.
JSON Validator & Formatter
Validate and format your JSON data. Get instant feedback and properly formatted output.
YouTube Comments Analyzer
Analyze comments from any YouTube video. Get insights into the most popular comments and their responses.
Password Generator & Checker
Generate strong, secure random passwords with customizable options and check the security of your existing passwords with comprehensive analysis.
What Our Users Say
Join thousands of satisfied developers
Alex Petrov
Senior Developer • TechCorp
"CoreTools has become an indispensable assistant in my daily work. I especially love the JSON validator and password generator."
Maria Sidorova
Data Analyst • DataFlow
"CSV Viewer is simply amazing! Now I can quickly analyze large data files without installing additional software."
Dmitry Kozlov
DevOps Engineer • CloudTech
"I use CoreTools to check configuration files. Fast, reliable, and always at hand."
New Tools
Recently added tools
Color Picker & Converter
NewChoose and convert colors between HEX, RGB, HSL, and CMYK formats. Get instant color conversions with a visual color picker and comprehensive color format support.
CSV Viewer & Table Formatter
NewUpload and view CSV files in a beautiful table format with filtering, searching, and export capabilities. Perfect for data analysts, project managers, and marketers.
Regex Tester & Highlighter
NewTest and debug regular expressions with real-time highlighting. Features regex validation, match highlighting, capture groups, history tracking, and export capabilities. Includes pre-built templates for common patterns like email validation, phone numbers, URLs, dates, IP addresses, credit cards, and more. Perfect for developers working with text processing, data validation, and pattern matching in their applications.
Detailed Statistics
Platform in numbers
Tool Categories
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Frequently Asked Questions
Answers to the most popular questions
Ready to Get Started?
Join thousands of developers who trust CoreTools for their daily workflow
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