# ToolXDev - Developer Tools and Blog > Exploring the bleeding edge of web development, tools, and best practices. ## About Us We share insights, tutorials, and updates about the tools we are building for the developer community. ## Latest Articles ### [How to Convert JSON to CSV in JavaScript](https://toolxdev.org/blog/how-to-convert-json-to-csv/) - Date: 2026-05-11 - Summary: Learn how to efficiently parse and convert nested JSON arrays into flat CSV strings for data exporting inside your web applications. ### [OpenRouter Chat Interface](https://toolxdev.org/tools/openrouter/) - Date: 2026-05-11 - Summary: Use this secure, client-side interface to chat with various AI models provided by OpenRouter. Your API key is stored locally in your browser and is never sent to our servers. OpenRouter API Key Local Storage Select Model Llama 3 8B Free Gemini 1.5 Flash Claude 3 Haiku GPT-4o Welcome to the OpenRouter Chat Interface Enter your API key above, select a model, and type your prompt below to start. Send Prompt ### [Welcome to the ToolXDev Blog](https://toolxdev.org/blog/hello-world/) - Date: 2026-05-11 - Summary: We’re launching our new blog to share insights, tutorials, and updates about the tools we are building for the developer community. Dive into our minimal card grid design. ### [5 Regex Patterns Every Developer Should Know](https://toolxdev.org/blog/regex-patterns-every-dev-should-know/) - Date: 2026-05-09 - Summary: Stop writing complex string parsing logic. Master these 5 essential regular expressions for emails, URLs, passwords, and HTML tags. ### [Quick Tips for Formatting Huge JSON Files](https://toolxdev.org/blog/json-formatter-tips/) - Date: 2026-05-01 - Summary: Dealing with 50MB+ JSON files can crash your browser or IDE. Discover our top strategies for formatting and inspecting massive JSON payloads. ### [This Is Test for post](https://toolxdev.org/tools/test/) - Date: 2026-04-24 - Summary: Hello sakib how are you ?? Hello sakib how are you ?? Hello sakib how are you ?? Hello sakib how are you ?? ### [Regex Tester — Free Online Regular Expression Tester](https://toolxdev.org/tools/regex-tester/) - Date: 2026-04-24 - Summary: What is a Regular Expression? A regular expression (regex) is a sequence of characters that defines a search pattern. They are used to match, search, and manipulate text. Regex is supported in virtually every programming language including JavaScript, Python, Go, Rust, and more. Common Use Cases Validation — Email, phone numbers, URLs, passwords Extraction — Pull specific data from strings Replacement — Find and replace text patterns Parsing — Split strings by complex delimiters ### [JSON to CSV Converter — Free Online Tool](https://toolxdev.org/tools/json-csv/) - Date: 2026-01-01 - Summary: ### [About DevToolX](https://toolxdev.org/about/) - Date: 0001-01-01 - Summary: About DevToolX DevToolX is a collection of free, browser-based developer tools designed to make your workflow faster and more efficient. Every tool runs entirely in your browser — no server roundtrips, no data collection, no accounts required. Our Mission We believe developer tools should be fast, free, and private. Too many online tools are bloated with ads, require sign-ups, or send your data to remote servers. DevToolX is different: 100% Browser-Based — All processing happens on your device. Your data never touches our servers. No Login Required — Every tool is available instantly. No accounts, no email verification, no friction. Forever Free — No premium tiers, no feature gates, no subscriptions. Every feature is free for everyone. Open Source — Our code is transparent. You can inspect, contribute, and trust what you’re using. What We Offer DevToolX provides a growing suite of essential developer tools: ### [Contact Us](https://toolxdev.org/contact/) - Date: 0001-01-01 - Summary: Contact Us We’d love to hear from you! Whether you have a question, found a bug, or want to suggest a new tool, here’s how to reach us. Get In Touch 📧 Email For general inquiries and support hello@devtoolx.com 🐛 Bug Reports Found something broken? Let us know Report on GitHub 💡 Feature Requests Have an idea for a new tool? Suggest a Feature Frequently Asked How quickly do you respond? We aim to respond to all inquiries within 48 hours. Bug reports on GitHub are typically addressed faster. ### [Cookie Policy](https://toolxdev.org/cookie-policy/) - Date: 0001-01-01 - Summary: Cookie Policy Last updated: January 1, 2026 This Cookie Policy explains how DevToolX uses cookies and similar technologies. What Are Cookies? Cookies are small text files stored on your device when you visit a website. They help websites remember your preferences and improve your experience. Cookies We Use Essential Cookies These cookies are necessary for the website to function properly: Cookie Purpose Duration devtoolx-theme Stores your dark/light mode preference Persistent (localStorage) Analytics Cookies We may use privacy-respecting analytics to understand how visitors use our site. These cookies collect anonymized, aggregated data only. ### [Disclaimer](https://toolxdev.org/disclaimer/) - Date: 0001-01-01 - Summary: Disclaimer Last updated: January 1, 2026 General Disclaimer The information and tools provided by DevToolX are for general informational and development purposes only. All tools are provided “as is” without any representations or warranties, express or implied. No Professional Advice DevToolX does not provide professional, legal, financial, or technical consulting advice. The tools are designed to assist developers with common tasks but should not be relied upon as the sole source of truth for any critical application. ### [Privacy Policy](https://toolxdev.org/privacy/) - Date: 0001-01-01 - Summary: Privacy Policy Last updated: January 1, 2026 At DevToolX, your privacy is our top priority. This Privacy Policy explains how we handle information when you use our website and tools. 1. Data We Collect We collect minimal data. DevToolX tools run entirely in your browser. We do not collect, store, or transmit any data you input into our tools. What we may collect: Analytics Data — We may use privacy-respecting analytics to understand general usage patterns (page views, popular tools). This data is anonymized and aggregated. Cookies — We use minimal cookies for essential functionality like theme preferences. See our Cookie Policy for details. What we do NOT collect: ### [Terms of Service](https://toolxdev.org/terms/) - Date: 0001-01-01 - Summary: Terms of Service Last updated: January 1, 2026 By accessing and using DevToolX (“the Service”), you agree to these Terms of Service. Please read them carefully. 1. Acceptance of Terms By using DevToolX, you agree to be bound by these terms. If you do not agree, please do not use the Service. 2. Description of Service DevToolX provides free, browser-based developer tools including but not limited to JSON converters, formatters, regex testers, and code utilities. All tools are provided “as is” and run entirely in your browser.