TekToolHub Guides
Tutorials, guides, and tips to help you get the most out of our tools.
Online API Tester | Free REST Client
Test REST APIs directly in your browser. Send GET, POST, PUT requests, manage headers, and inspect responses with our free online API testing tool.
AI Landing Page Generator | Create Professional Landing Pages Instantly
Generate complete, responsive landing pages in seconds using AI. No coding required - just describe your business and download ready-to-use HTML.
How to Test Your Typing Speed Online | Free WPM Test
Learn how to use our free typing speed test to measure your WPM (words per minute) and accuracy. Improve your typing skills with regular practice and tracking.
YAML to JSON Converter | Free Online Developer Tool
Convert YAML to JSON and JSON to YAML instantly with our free online tool. Features syntax validation, copy-paste functionality, and secure client-side processing.
PDF Editor: Edit PDF Files Online - Add Text, Images & Watermarks
Edit PDF files directly in your browser with our free online PDF editor. Add text, insert images, rotate pages, add watermarks, and more. 100% client-side processing - your files never leave your device.
PDF Signer: Sign Documents Online - Upload or Draw Your Signature Free
Sign PDF documents instantly with our free online PDF signer. Upload photos for AI background removal or draw signatures directly on-screen. Privacy-focused with localStorage storage.
CSS Button Generator: Create Beautiful Buttons with Hover Effects
Create stunning CSS buttons with our comprehensive generator. Choose from 8 presets including gradient, neon glow, and neumorphism. Customize colors, animations, and get instant CSS code.
Tailwind Navbar Generator: Create Responsive Navigation Bars
Generate responsive Tailwind CSS navigation bars instantly. Choose from 6 presets, customize colors and styles, toggle between desktop and mobile views, and get production-ready HTML and JavaScript code.
CSS Box Shadow Generator: Add Depth to Your UI
Create beautiful, realistic shadows. Adjust offset, blur, spread, and color to design the perfect elevation for your elements.
CSS Border Radius Generator: Soften Your Edges
Create rounded corners for your buttons and cards. Generate simple or complex (blob-like) border-radius shapes visually.
CSS Grid Generator: Design Complex Layouts
Create complex 2D layouts with CSS Grid. Define rows, columns, and gaps visually, then copy the code.
CSS Flexbox Generator: Visual Layout Editor
Master CSS Flexbox without memorizing syntax. Visually design your layout and get the code instantly with our Flexbox Generator.
Online Color Picker: HEX, RGB, & HSL
Pick the perfect color for your design. Get HEX, RGB, and HSL codes, and create beautiful shades and tints.
What Is My IP Address? Instant IP Lookup | Free Online Tool
Find your public IP address, location, and ISP details instantly. Useful for network debugging and security checks.
Cron Expression Helper: Schedule Jobs Easily
Write and debug Cron expressions for scheduling tasks. Our helper translates complex cron strings into human-readable descriptions.
UUID Generator: Create Unique Identifiers
Generate version 4 UUIDs (Universally Unique Identifiers) instantly. Perfect for database keys, session IDs, and testing.
JWT Decoder: Inspect JSON Web Tokens
Decode and debug JSON Web Tokens (JWT) instantly. View header, payload, and signature details without sending your token to a server.
URL Encoder & Decoder: Sanitize Your Links
Encode special characters in URLs to make them safe for the web, or decode messy URLs back to readable text.
Regex Tester: Test Regular Expressions Online
Debug and test your Regular Expressions (Regex) against sample text. Real-time matching and highlighting to help you master patterns.
Markdown Preview: Live Editor & Viewer
Write and preview Markdown in real-time. Perfect for writing READMEs, guides posts, and documentation with instant feedback.
Base64 Encoder & Decoder: Convert Data Instantly
Encode text and files to Base64 strings, or decode Base64 back to readable text. Essential for data transmission and debugging.
JSON Formatter & Validator: Debug Your Data
Validate, format, and minify JSON data. Our JSON Formatter helps you spot syntax errors and make API responses readable.
Convert CSV to JSON (and JSON to CSV) Online | Free Online Tool
Seamlessly convert data between CSV (Spreadsheet) and JSON (Web API) formats. Essential for developers and data analysts.
Format SQL Queries Online: Beautify Your Database Code
Turn unreadable SQL spaghetti into structured, professional queries. Our SQL Formatter supports standard SQL, MySQL, PostgreSQL, and more.
Beautify Code Online: HTML, CSS, & JavaScript
Clean up messy, minified code. Our Code Beautifier formats HTML, CSS, and JavaScript with proper indentation and spacing for readability.
Compare Text Files Online: Find Differences Instantly
Need to see what changed between two versions of a file? Our Diff Checker highlights additions, deletions, and modifications in seconds.
Universal Unit Converter: Length, Weight, & More
Convert between metric and imperial units easily. Our Unit Converter handles length, weight, temperature, area, and volume conversions.
Convert Text Case Online: Uppercase, Lowercase, & More
Accidentally left Caps Lock on? Convert text between Uppercase, Lowercase, Title Case, and Sentence Case instantly with our Text Case Converter.
Rotate PDF Pages: Fix Orientation Permanently
Scanned a document upside down? Rotate PDF pages 90, 180, or 270 degrees and save the changes permanently.
Split PDF Files: Extract Pages Instantly
Need just one page from a large PDF? Use our PDF Splitter to extract specific pages or separate a document into multiple files.
Merge PDF Files Online: Combine Documents for Free
Combine multiple PDF files into a single document. Our PDF Merger is fast, free, and secure—processing happens entirely in your browser.
Convert Images to PDF: Combine JPGs and PNGs
Turn your photos into a professional PDF document. Combine multiple images, adjust orientation, and download a single file.
Extract Color Palettes from Images Instantly | Free Online Tool
Love the colors in a photo? Extract the dominant color palette and get HEX, RGB, and HSL codes for your design projects.
Generate Favicons for Your Website in Seconds | Free Online Tool
Create the perfect favicon for your website. Our generator creates all the necessary sizes (ICO, PNG) for desktop, mobile, and tablets.
Protect Your Privacy: Remove EXIF Metadata from Photos
Before sharing photos online, strip sensitive metadata like GPS location and camera details. Use our free tool to clean your images instantly.
View Hidden Image Metadata with EXIF Viewer | Free Online Tool
Discover the hidden data in your photos. View camera settings, location data, date taken, and more with our free online EXIF Viewer.
Convert Images Between Formats (JPG, PNG, WebP) | Free Online Tool
Easily convert images between JPG, PNG, WebP, and GIF formats. Our free online converter handles single files or batches instantly.
Compress Images for Faster Websites | Free Online Tool
Reduce image file size by up to 80% without visible quality loss. Speed up your website and save storage space with our Image Compressor.
Upscale Images with AI: Enhance Quality Instantly
Turn low-resolution photos into high-definition masterpieces. Our AI Image Upscaler increases resolution while preserving details and reducing noise.
Crop Images Online: The Ultimate Guide
Crop your photos to focus on what matters. Use our free Image Cropper with preset aspect ratios for all major social media platforms.
Resize Images Online Without Losing Quality | Free Online Tool
Resize your images to exact dimensions for social media, web, or print. Our Image Resizer is fast, free, and runs entirely in your browser.
Remove Image Backgrounds for Free in Seconds | Free Online Tool
Need a transparent background? Our AI Background Remover tool automatically isolates subjects from their backgrounds with high precision. No signup required.
The Importance of Strong Passwords & How to Generate Them | Free Online Tool
Discover why strong passwords are crucial for your online security and how to generate random, secure passwords instantly.
How to Create Custom QR Codes for Free | Free Online Tool
Learn how to generate custom QR codes for URLs, Wi-Fi, and text using our free online tool. Customize colors, size, and download high-quality PNGs.
How to Outline Images Instantly with AI | Free Online Tool
Learn how to create professional outlines for your images in seconds using our free AI-powered Image Outliner tool. Perfect for stickers, thumbnails, and design projects.
Free Online ID and Document Photo Formatter | Free Online Tool
Easily crop, resize, and format photos for ID cards, badges, visas, and profiles. Supports common sizes like 2x2 inches and 35x45mm.