Image Compressor: Compress, Resize & Convert Images Online for Free
Merge PDF Files Online: Combine, Reorder & Extract PDF Pages for Free
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Image Compressor: Compress, Resize & Convert Images Online for Free
Compress, resize, and convert JPG, PNG, WebP, and AVIF images directly in your browser with ToolLok's free local image optimization tool.
Merge PDF Files Online: Combine, Reorder & Extract PDF Pages for Free
Merge multiple PDF files, reorder documents, and extract specific pages securely in your browser with ToolLok's free local PDF merger.
Local .env & Secret Token Scanner: Detect API Keys, Credentials & Leaked Secrets
Scan .env files, source code, Git diffs, JSON and YAML for API keys, tokens, database credentials and private keys with ToolLok's free browser-based secret scanner.
API Mock Server & Data Generator: Build and Test APIs Without a Backend
Learn how to create mock REST and API endpoints, simulate latency and errors, generate synthetic JSON data, test requests, and work with OpenAPI using ToolLok's free API Mock Server & Data Generator.
Options & Derivatives Payoff Calculator: Visualize Profit, Loss & Greeks
Learn how options payoff diagrams work, calculate potential profit and loss, understand option Greeks, and visualize multi-leg derivatives strategies with ToolLok.
Password & API Key Analyzer: Check Password Strength, Entropy & Generate Secure Keys
Learn how password entropy works, analyze password strength, generate cryptographic keys, and understand API key security with ToolLok's free developer security tool.
JSON Formatter, Beautifier & Validator – Free Online JSON Formatter Tool
Format, validate, beautify, and minify JSON instantly with our free online JSON Formatter. Fix JSON errors, improve readability, and optimize JSON for APIs.
CSS Micro-Interaction & Animation Builder: The Complete Beginner's Guide
Learn how to generate beautiful, lightweight CSS animations visually and copy production-ready code in seconds without writing complex keyframes manually.