Build Faster. Code Smarter.

Your all-in-one toolkit for comparing code, formatting JSON, running HTML/CSS/JS, and converting encoding, numbers, styles, text, and time formats—right in the browser. Join over 500,000 developers who trust ToolAska for seamless data transformation and daily development workflow.

500K+

Active Users

10M+

Files Processed

99.9%

Uptime

24/7

Available

Explore Tools Get Started Guide

How to Get Started with ToolAska

Choose Your Tool

Select from our suite of developer tools based on your current task. Whether you need to compare code, format JSON, or compile HTML/CSS/JS, we have you covered.

Input Your Data

Simply paste your code, JSON, or text into our intuitive interface. Our tools support various file formats and can handle large datasets efficiently.

Get Instant Results

Receive immediate feedback, formatted output, or comparison results. Download, copy, or share your results with your team instantly.

Professional Developer Tools

Accelerate your workflow with our all-in-one toolkit—featuring advanced converters for encoding, numbers, colors and styles, text formats, and time zones. ToolAska empowers developers with seamless solutions for every coding and data transformation challenge.

Advanced Diff Checker

Compare two pieces of code or text with intelligent highlighting. Features include side-by-side comparison, line-by-line analysis, merge conflict resolution, and export options. Perfect for code reviews, version control, and debugging.

• Syntax highlighting • Multiple diff algorithms • Export to PDF

Try Diff Checker

JSON Formatter & Validator

Validate, format, and beautify JSON data with comprehensive error detection. Includes minification, tree view, path finder, and schema validation. Essential for API development and data processing.

• Error detection • Schema validation • Tree view navigation

Try JSON Formatter

Online Code Compiler

Compile and run HTML, CSS, and JavaScript code with live preview. Features include auto-completion, error highlighting, responsive design preview, and project sharing capabilities.

• Live preview • Auto-completion • Responsive testing

Try Code Compiler

Encoding Converter Suite

Convert between Base64, URL, HTML, JWT, hash, and byte formats. Instantly encode or decode data for secure transmission, storage, and interoperability.

• Base64 • URL • HTML • JWT • Hash • Bytes

Try Encoding Tools

Number Converter Suite

Instantly convert between decimal, binary, hexadecimal, and other number systems. Includes timestamp and byte conversions for developers and data analysts.

• Decimal • Binary • Hex • Timestamp • Bytes

Try Number Tools

Style & Color Converter Suite

Convert between CSS, SCSS, and color formats. Instantly transform styles, preview colors, and generate code for web design and development.

• CSS • SCSS • Color Picker • Code Generator

Try Style Tools

Text Converter Suite

Transform text formats including JSON, CSV, XML, and more. Easily convert, clean, and reformat data for documentation, analysis, and sharing.

• JSON • CSV • XML • Text Cleaner

Try Text Tools

Time Converter Suite

Convert timestamps, time zones, and date formats. Instantly transform and compare time data for scheduling, logging, and analytics.

• Timestamp • Time Zone • Date Format

Try Time Tools

Features

User-Friendly

Intuitive and easy-to-use interface for quick access.

Fast Processing

High-performance tools that deliver results quickly.

Free to Use

Completely free online tools for developers and programmers.

No Installation

Accessible from any browser without any installation.

Why Choose ToolAska?

While there are many online tools out there, ToolAska stands apart with its focus on simplicity, performance, and community feedback. Every tool is crafted to solve real developer pain points with zero bloat and maximum speed. We don't just provide a tool—we ensure it's the best one for the job.

Built by Developers, for Developers

Created by experienced developers who understand your daily challenges. Every feature is designed with real-world workflows in mind.

Lightning-Fast & Mobile-Friendly

Optimized for speed and performance across all devices. Works seamlessly on desktop, tablet, and mobile.

Always Free to Use

No hidden costs, no premium tiers, no account required. All tools are completely free and will remain so.

Start Using Tools

Explore Our Tool Categories

ToolAska offers a diverse range of web tools to support developers, testers, students, and data analysts in their daily work. Here’s what you’ll find:

🧩 JSON & Data Tools

Format, minify, validate, and visualize your JSON. Also includes YAML, CSV, and XML utilities for seamless data manipulation.

🧪 Code Testing & Conversion

Instantly test code snippets, convert values, or run regex patterns. Great for debugging or quick checks without opening a full IDE.

🔍 Compare & Diff Tools

Compare JSON, text files, or URLs with our intuitive diff checker. Helpful when reviewing changes or analyzing API responses.

What Users Say About ToolAska

"ToolAska's JSON Formatter saved me hours of debugging time. It's fast, clean, and works perfectly every single time!"

Amit Verma

Frontend Developer, Pune

"I use the Diff Checker almost daily. It's simple, reliable, and does exactly what I need — no clutter, just results."

Sneha Reddy

Software Engineer, Hyderabad

"The Code Compiler tool is just brilliant! It helps me prototype ideas on the fly without setting up a local environment."

Rohit Sharma

Full Stack Developer, Delhi

Toolaska Reviews

Frequently Asked Questions

ToolAska is a suite of online developer tools that includes code comparison, JSON formatting, and HTML/CSS/JS compilation capabilities.

Yes, all our tools are completely free and open to use with no restrictions.

No, all our tools are publicly available and can be used immediately without any registration or account creation.

Browse More FAQs

Trusted by Thousands of Developers

See how our tools are helping the community every day.

250K+

JSON Formats Processed

120K+

Code Comparisons Done

90K+

Compilations Run

170+ Countries

Global Reach

Built with Performance in Mind

ToolAska is built using modern web technologies like JavaScript, Firebase, and Bootstrap 5 to ensure fast load times, zero server dependencies, and maximum scalability. We use local processing wherever possible to ensure that your data never leaves your browser—keeping your information secure and private.

Every tool goes through rigorous user testing and feedback collection before release. Our aim is to keep improving the performance, UI, and accessibility of each feature based on real-world use cases and community suggestions.

Pro Developer Tips

Code Comparison Best Practices

When comparing code files, use our diff checker's context view to understand changes better. Enable line numbers and whitespace highlighting for precise analysis. For large files, use the search function to jump to specific sections quickly.

Try Advanced Diff

JSON Optimization Techniques

Validate your JSON structure before deployment using our comprehensive validator. Use the tree view to navigate complex nested objects, and leverage our minification feature to reduce file size for production environments.

Optimize JSON

Rapid Prototyping

Use our online compiler for quick prototyping without local setup. Test responsive designs across different screen sizes, experiment with CSS frameworks, and share live demos with your team instantly.

Start Coding

Security & Privacy

All processing happens in your browser - your code never leaves your device. Our tools work offline after initial load, ensuring your sensitive code remains private and secure throughout your development process.

Privacy Details