Free All-in-One Developer Tools
A comprehensive collection of free, fast, and secure developer utilities. Format code, convert files, edit images, and manage PDFs — all directly in your browser with no server uploads.
Hot Tools
QR Code Generator
Free Custom QR Code Generator. Create QR codes for URLs, Wi-Fi access, WhatsApp, and Emails. Customize colors, add logos, and download as high-resolution PNG or SVG files.
Age Calculator
Free Accurate Age Calculator. Calculate your exact age in years, months, weeks, days, hours, and minutes. See your next birthday countdown and fun life statistics.
JSON Formatter
Best Free Online JSON Formatter & Validator. Beautify, debug, and minify JSON data instantly. Fix syntax errors and structure your data for better readability.
Strong Password Generator
Strong Password Generator. Create secure, random passwords with custom length, symbols, and numbers. Prevent hacks with high-entropy, uncrackable keys.
Image Resizer
Free Online Image Resizer. Resize JPG, PNG, and WebP images by pixels or percentage. Maintain aspect ratio and download high-quality images instantly.
Image Compressor
Advanced Image Compressor. Compress PNG, JPG, and WebP images without losing quality. Reduce file size significantly for faster website loading speeds.
Lorem Ipsum Generator
Lorem Ipsum Generator. Generate placeholder text for successful designs. Create paragraphs, sentences, or words. Copy as plain text or HTML tags instantly.
Web Development Tools
Color Picker
Free Advanced Color Picker & Palette Generator. Instantly get Hex, RGB, HSL, and CMYK values. Upload images to extract dominant colors and create beautiful color palettes for your web designs.
Gradient Generator
Visual CSS Gradient Generator. Create stunning linear and radial gradients with ease. Copy cross-browser compatible CSS code instantly to enhance your website backgrounds.
CSS Box Shadow Generator
Advanced CSS Box Shadow Generator. Design soft, realistic, and layered shadows for modern user interfaces. Preview changes in real-time and copy the CSS code.
CSS Border Radius Generator
Interactive CSS Border Radius Generator. Visually create custom rounded corners and organic 'blob' shapes. Copy the concise CSS output for your buttons and containers.
CSS Clip-path Maker
Advanced CSS Clip-path Maker. Visually create custom shapes using the CSS clip-path property. Drag points on a canvas to generate complex polygon shapes.
SVG Blob & Wave Generator
Create unique, organic SVG shapes and section dividers for your website. Generate random blobs and smooth waves with customizable complexity and gradients.
Responsive Image Generator
Free Responsive Image Generator. Automatically create 'srcset' lines for multiple screen sizes. Improve your SEO, page load speeds, and Core Web Vitals scores.
Flexbox Playground
Interactive Flexbox Playground. Visually build and test CSS Flexbox layouts. Generate code instantly.
Meta Tag Generator
Ultimate SEO Meta Tag Generator. Craft SEO-friendly Titles, Meta Descriptions, and Open Graph tags. Boost your search engine rankings and improve Click-Through Rates (CTR).
Robots.txt Generator
Robots.txt Generator & Validator. Create standard robots.txt files to control how search engines crawl your site. Protect sensitive areas and optimize your crawl budget.
Favicon Generator
Professional Favicon Generator. Create high-quality favicons from text, emojis, or logos. Generates all formats (.ico, .png) for Web, Android, and iOS devices.
Misc Tools
QR Code Generator
Free Custom QR Code Generator. Create QR codes for URLs, Wi-Fi access, WhatsApp, and Emails. Customize colors, add logos, and download as high-resolution PNG or SVG files.
Barcode Generator
Online Barcode Generator. Instantly create EAN-13, UPC, Code-128, and Code 39 barcodes. Perfect for product labeling, inventory tracking, and retail management systems.
Age Calculator
Free Accurate Age Calculator. Calculate your exact age in years, months, weeks, days, hours, and minutes. See your next birthday countdown and fun life statistics.
Text / Code Formatting
JSON Formatter
Best Free Online JSON Formatter & Validator. Beautify, debug, and minify JSON data instantly. Fix syntax errors and structure your data for better readability.
XML Formatter
Free Online XML Formatter & Validator. Beautify and minify XML data to produce clean code. Validate structure and format complex XML documents with ease.
YAML Formatter
Online YAML Validator & Formatter. Automatically format YAML files, fix indentation errors, and validate syntax. Essential for Kubernetes and Docker configurations.
HTML Formatter
Best HTML Formatter & Beautifier. Indent, organize, and clean up messy HTML code. Minify your HTML files to improve website performance and loading speeds.
CSS Beautifier
Instantly Beautify and Format CSS. Organize messy stylesheets, fix indentation issues, and minify CSS code for optimized website performance.
JavaScript Beautifier
Online JavaScript Beautifier & Deobfuscator. Format and organize minified JS code. Improve readability, debug scripts, and standardise your JavaScript code.
Markdown Formatter
Format and Beautify Markdown Content. Convert raw text into clean Markdown syntax. Automatically align tables, fix lists, and standardize headers for documentation.
SQL Formatter
Free SQL Formatter for Developers. Beautify complex SQL queries for MySQL, PostgreSQL, and SQL Server. Format keywords and indent logic for better readability.
Regex Tester
Advanced Regex Tester & Debugger. Test and validate regular expressions in real-time. Supports JavaScript RegEx syntax with instant match highlighting.
Encoders / Decoders
Base64 Converter
Secure Online Base64 Converter. Encode and decode text or files instantly. 100% client-side processing ensures your data remains private and never hits a server.
URL Encoder/Decoder
Free URL Encoder and Decoder. Encode special characters (Percent-encoding) for safe transmission or decode complex URLs into readable text instantly.
HTML Entity Encoder
HTML Entity Encoder & Decoder. Convert special characters to HTML entities and back. Protect your site against XSS attacks and ensure safe code rendering.
Hash Generator
Secure Online Hash Generator. Generate MD5, SHA-1, SHA-256, and SHA-512 hashes. Verify file integrity and secure your passwords with client-side hashing.
JWT Decoder
Debug and Decode JSON Web Tokens (JWT). Inspect headers and payload claims locally. View token structure without signature verification for quick debugging.
Converter Tools
JSON to CSV Converter
Convert JSON to CSV and CSV to JSON Instantly. Visualize data in a table format and export for Excel analysis. Handles large datasets efficiently in your browser.
JSON to XML Converter
Convert JSON to XML and XML to JSON. Transform complex data structures for API integration. Validate input structure and ensure compatibility across systems.
JSON to YAML Converter
Convert JSON to YAML and YAML to JSON. The essential tool for Kubernetes, Docker Compose, and DevOps configuration management. Validate and format instantly.
HTML to Markdown Converter
Convert HTML to Markdown and Markdown to HTML. Simplify content migration for blogs and documentation. Produces clean, semantic, and readable output.
Number Base Converter
Universal Number Base Converter. Instantly convert numbers between Binary, Octal, Decimal, and Hexadecimal systems. Essential for low-level programming.
Unix Timestamp Converter
Unix Timestamp Converter. Convert Epoch Unix timestamps to human-readable dates and local time zones. Supports seconds, milliseconds, and microseconds.
Unit Converter
Universal Unit Converter. Instantly convert Storage (KB/GB), Length (mm/km/ft), and Weight (kg/lb). Accurate real-time calculations for students and pros.
Image to Base64 Converter
Convert Images to Base64 Strings. Embed images directly in HTML/CSS to reduce HTTP requests. Supports PNG, JPG, GIF, and SVG formats with instant preview.
ASCII Art Generator
Convert text and images into ASCII art. Use stylish fonts for text or turn your photos into character-based art. Copy or download the result.
Security & Cryptography Tools
Strong Password Generator
Strong Password Generator. Create secure, random passwords with custom length, symbols, and numbers. Prevent hacks with high-entropy, uncrackable keys.
UUID Generator
Online UUID Generator (GUID). Generate universally unique identifiers (UUID v1 & v4). Perfect for database keys, testing, and software development.
Token Generator
Random Token & API Key Generator. Create secure, high-entropy tokens, secrets, and session IDs. Supports Hex and Base64 formats for maximum security.
RSA Key Generator
RSA Key Pair Generator. Generate secure Public & Private RSA keys (PEM format) locally. Supports 1024, 2048, and 4096-bit encryption for secure communications.
SSL Checker
Free Online SSL Checker. Verify SSL/TLS certificate validity, expiry date, and chain details for any domain. Ensure your site is secure and trusted.
Whois Lookup
Free Whois Domain Lookup. Check domain registration details, ownership, expiry date, and nameservers. Supports all TLDs with recursive queries.
DNS Lookup
Free DNS Record Lookup. Check A, AAAA, MX, NS, TXT, and CNAME records instantly. Verify domain propagation and mail server configuration.
Subnet Calculator
Advanced IP Subnet Calculator. Calculate network address, broadcast, netmask, and usable host range from CIDR. Ideal for network engineers.
Chmod Calculator
Visual Chmod Calculator. Generate Linux file permissions (755, 644) using an interactive grid. Convert symbolic and octal formats instantly.
API / Backend Tools
Cron Expression Generator
Visual Cron Expression Generator. Easily create and debug cron schedules for Linux and Quartz. Translate complex cron strings into human-readable text.
SQL Query Playground
Free Online SQL Playground. Run SQLite queries directly in your browser. Practice SELECT, JOIN, and GROUP BY. Test SQL logic safely without server setup.
Image & Media Tools
Image Resizer
Free Online Image Resizer. Resize JPG, PNG, and WebP images by pixels or percentage. Maintain aspect ratio and download high-quality images instantly.
Image Compressor
Advanced Image Compressor. Compress PNG, JPG, and WebP images without losing quality. Reduce file size significantly for faster website loading speeds.
PNG/JPG/WebP Converter
Convert Images to Different Formats. Instantly convert between PNG, JPG, and WebP. Batch processing with 100% client-side privacy for your photos.
Signature Generator
Free Online Digital Signature Generator. Draw your signature or generate one from text. Download transparent PNG for use in documents and emails.
Writing & Content Tools
Lorem Ipsum Generator
Lorem Ipsum Generator. Generate placeholder text for successful designs. Create paragraphs, sentences, or words. Copy as plain text or HTML tags instantly.
Text Case Converter
Text Case Converter. Convert text to UPPERCASE, lowercase, Title Case, camelCase, snake_case, and more instantly. Perfect for coding and content formatting.
Word Counter
Free Word and Character Counter. Count words, characters (with/without spaces), sentences, and paragraphs. Real-time analysis for writers and students.
Readability Checker
Readability Score Checker. Analyze text complexity using Flesch-Kincaid and other algorithms. Improve your writing clarity and engagement rankings.
Diff Checker
Online Text Diff Checker. Compare two text files or code snippets side-by-side. Highlight added, removed, and modified lines to spot differences instantly.
SEO Tools
Keyword Extractor
Free Keyword Extractor. Analyze text frequency to find prominent keywords and phrases. Calculate keyword density to optimize your content for SEO.
URL Cleaner
URL Param Cleaner. Automatically remove tracking parameters (UTM, fbclid, gclid) from URLs. Create clean, private links for safer sharing.
Schema Markup Generator
Schema Markup Generator (JSON-LD). Create structured data for Articles, FAQs, Organizations, and more. Boost SEO with Google Rich Snippets.
Link Preview Tool
Social Media Link Preview Tool. Visualize how your link appears on Facebook, Twitter, and LinkedIn. Debug Open Graph tags for perfect social sharing.
PDF Tools
PDF Merger
Merge PDF Files Online. Combine multiple PDF documents into a single file directly in your browser. 100% private and secure document processing.
Image to PDF
Convert Images to PDF. Turn JPG, PNG, and WebP images into a single professional PDF document. Adjust page orientation and margins easily.
PDF to Image
Convert PDF to Images. Extract pages from any PDF and save them as high-quality JPG or PNG images. Download individually or as a ZIP archive.
PDF Compressor
Compress PDF Files Online. Reduce file size significantly by optimizing images and content. Choose your preferred compression level for the best results.
Business Tools
Comprehensive Developer Toolkit
Web Development
Optimize your web workflow with essential utilities. Generate meta tags for SEO, create robots.txt files, and build responsive images with srcset generation to ensure your site performs perfectly across all devices.
Code Formatters
Clean, validate, and beautify your code instantly. Use our JSON Formatter, HTML Beautifier, and SQL Formatter to fix indentation and readability issues. We also support standard CSS and XML formatting.
Data Converters
Transform data between different formats effortlessly. Convert JSON to CSV for spreadsheets, YAML to JSON for configuration, or Markdown to HTML for content management. Accurate conversions with zero server uploads.
Image Processing
Edit and optimize images directly in the browser. Compress PNG and JPG files to reduce file size without quality loss, resize images for social media, or convert to modern formats like WebP.
Security & Encryption
Secure your data with client-side cryptography. Generate strong RSA key pairs, create random passwords and UUIDs, or secure strings with SHA/MD5 hashing.
PDF Utilities
Manage your documents easily. Merge multiple PDFs into a single file, convert images to PDF, or extract pages using our PDF to Image converter. All operations are performed locally for maximum privacy.
About ToolsAid
ToolsAid is a comprehensive suite of free, client-side utilities designed specifically for developers, designers, and digital professionals.
Our mission is to provide fast, secure, and accessible tools that help you boost productivity without compromising your data privacy. From SQL playgrounds and JSON formatters to image compressors and CSS generators, we've got you covered.
Frequently Asked Questions
Is it really free?
Yes, all tools are completely free to use. Additional features are constantly being added based on community feedback.
Is my data safe?
Absolutely. All processing happens locally in your browser. We never upload your files or data to any server.
Can I work offline?
Since most tools run client-side, many functionalities will work even without an active internet connection once loaded.
Privacy First
All processing happens directly in your browser. Your data never leaves your device.
Blazing Fast
Instant results with no server latency. Built for performance and efficiency.
Free Forever
Completely free utilities for developers worldwide.
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