TekToolHub Guides

Tutorials, guides, and tips to help you get the most out of our tools.

api-tester

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.

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landing-page-generator

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.

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typing-speed

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.

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yaml-json

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.

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editor

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.

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signer

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.

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button

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.

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navbar

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.

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box-shadow

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.

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border-radius

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.

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grid

CSS Grid Generator: Design Complex Layouts

Create complex 2D layouts with CSS Grid. Define rows, columns, and gaps visually, then copy the code.

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flexbox

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.

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color-picker

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.

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ip

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.

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cron

Cron Expression Helper: Schedule Jobs Easily

Write and debug Cron expressions for scheduling tasks. Our helper translates complex cron strings into human-readable descriptions.

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uuid

UUID Generator: Create Unique Identifiers

Generate version 4 UUIDs (Universally Unique Identifiers) instantly. Perfect for database keys, session IDs, and testing.

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jwt

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.

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url

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.

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regex

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.

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markdown

Markdown Preview: Live Editor & Viewer

Write and preview Markdown in real-time. Perfect for writing READMEs, guides posts, and documentation with instant feedback.

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base64

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.

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json

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.

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csv-json

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.

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sql

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.

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beautifier

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.

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diff

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.

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unit

Universal Unit Converter: Length, Weight, & More

Convert between metric and imperial units easily. Our Unit Converter handles length, weight, temperature, area, and volume conversions.

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text-case

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.

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rotate

Rotate PDF Pages: Fix Orientation Permanently

Scanned a document upside down? Rotate PDF pages 90, 180, or 270 degrees and save the changes permanently.

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split

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.

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merge

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.

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image-to-pdf

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.

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color-palette

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.

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favicon

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.

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remove-exif

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.

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exif

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.

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convert

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.

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compress

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.

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upscale

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.

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crop

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.

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resize

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.

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remove-bg

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.

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password

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.

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qr-code

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.

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outline

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.

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photo-id

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.

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