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12 popular tools
Popular Tools
Discover the most frequently used free utilities on ToolLok, selected to help you get useful results faster without unnecessary complexity.
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CSS Micro-Interaction & Animation Builder
Visual UI editor for generating pure CSS animations, progress bars, and geometric morphing effects.
JSON Toolkit – Formatter, Validator, Beautifier & Converter | ToolLok
Free online JSON Toolkit to format, validate, beautify, minify, repair, analyze, transform, and convert JSON into TypeScript, JSON Schema, CSV, YAML, and JavaScript.
QR Code, Barcode & Multi-Format Generator
Generate custom QR codes and professional barcodes for websites, Wi-Fi, contacts, products, events, and payments. Customize, preview, and download individual or bulk codes.
API Mock Server & Synthetic Data Generator
Design custom mock REST endpoints, simulate network latency and chaos testing, and export Express.js server scripts.
Text Difference Checker
Compare two text files or text versions online. Highlight added, removed, and unchanged lines, ignore whitespace, and export differences for free.
Interactive Regex Tester & Visualizer
Real-time regular expression evaluation with visual syntax breakdown trees and natural language explainers.
Legacy Codebase Refactorer & Modernizer
Instantly parse legacy JavaScript, jQuery, and React Class components into modern TypeScript and React Hooks.
XML Formatter & Validator
Format, beautify and validate XML documents online with customizable indentation, syntax error detection and private browser-based processing.
SQL Formatter
Beautify and format SQL queries online with support for popular database dialects, customizable keyword casing, indentation and downloadable SQL output.
YouTube Thumbnail Analyzer & Previewer
Preview thumbnails and titles across YouTube desktop, mobile, and feed layouts in light and dark mode.
Cinematic Code Snippet Animator
Convert static code snippets into 4K 60fps animated typing videos for tutorials, Reels, and Shorts.
Browser-Based Audio Stem Separator
Isolate vocals, drums, and background music tracks locally in your browser using WebGL audio processing.