Development & programming

686 tools available


Transform JavaScript code to make it difficult to understand and reverse-engineer while preserving functionality
Convert between backslashes and forward slashes in file paths and strings. Useful for converting Windows paths to Unix/Linux format and vice versa.
Calculate check digits using ISO 7064 MOD 97-10 algorithm. Commonly used for IBAN and LEI validation.
Convert between CSS length units including pixels (px), centimeters (cm), millimeters (mm), inches (in), points (pt), and picas (pc).
Interactive preview and reference for all CSS cursor values with live demonstration
Convert legacy Internet Explorer CSS to modern standards. Automatically transforms IE-specific filters (opacity, gradients), vendor prefixes (-ms-), old flexbox/grid syntax, selector hacks, and proprietary properties into clean, modern CSS equivalents.
Build Framer Motion spring transition configs with interactive sliders, preview the feel, and copy a ready-to-use snippet.
Test and validate glob patterns against file paths in real-time
Validate URLs against robots.txt rules. Check if a URL is allowed or disallowed for specific user-agents, view crawl delays, and find sitemap references.
Deobfuscate and clean up obfuscated JavaScript code using AI
Get clear, simple explanations of regular expression patterns using AI. Understand what your regex does, what it matches, and how it works in plain language.
Describe what you want in plain English and get SQL for MySQL, PostgreSQL, or SQLite with built-in validation.
Paste code in any language and get a plain-language explanation.
Paste a code snippet and let AI identify which programming language it is written in.
Describe a UI element in words and generate matching CSS code.
Describe a data structure in plain English and generate sample JSON.
Solve LeetCode-style coding challenges with an AI-generated approach, complexity analysis, and solution code.
Generate a properly formatted llms.txt file for your website using AI. Help LLMs understand your project at inference time.
Generate embedding vectors from text using OpenAI, Google, and Voyage AI models.
Test and improve your typing speed with real-time WPM tracking and accuracy metrics
Generate customizable CSS transparency grids with checkerboard patterns for displaying transparent images and elements
Interactive playground for testing and experimenting with Fuse.js fuzzy search library. Configure all search options and see real-time results.
Test the experimental Chrome built-in Translator and Language Detector Web APIs directly in your browser. Translate text on-device, auto-detect the source language, watch model download progress, and inspect language detection confidence — no server required.
Test the experimental Chrome built-in Prompt API (LanguageModel) directly in your browser. Send prompts to Gemini Nano on-device, configure a system prompt and sampling parameters, watch responses stream in real time, and monitor model download and context window usage.