High-Performance Web Tools.
Zero Data Leakage.
Engineered for developers, content creators, and privacy-conscious professionals. Every tool executes directly inside your browser memory β nothing is ever transmitted or logged.
Featured High-Demand Utilities(Quality over Quantity)
JSON Formatter & Validator
Format, validate, beautify, and minify JSON data with instant syntax error detection.
JSON to TypeScript Interface
Instantly convert nested JSON objects into clean, production-ready TypeScript types.
JWT Decoder & Inspector
Decode JWT headers and claims without exposing security tokens to the network.
SQL Formatter & Beautifier
Format, standardize, and prettify SQL queries for Db2, PostgreSQL, MySQL, and SQLite.
Base64 & Hex Encoder / Decoder
Encode and decode Base64, Hex, and text with full UTF-8, emojis, and URL-safe options.
URL & Query String Encoder / Decoder
Encode, decode, and deeply resolve double-encoded (%2520) URLs with structured parameter tables.
Cryptographic Hash Generator & Checksum Comparator
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes simultaneously with live checksum matching.
Regex Tester, Debugger & ReDoS Sandbox
Test and debug regular expressions in real-time with visual highlighting, capture groups, and 100ms ReDoS worker protection.
AI Prompt Token Counter & Cost Estimator
Calculate exact tokens and estimated API costs for GPT-4o, o1, Claude 3.5, and Gemini 1.5.
Loan EMI Calculator & Amortization Schedule
Interactive monthly loan payment calculator with diminishing balance amortization schedules and CSV export.
Visual Diff Checker & Text Comparator
Side-by-side visual difference comparator for code snippets and raw text with Split & Unified views.
Cron Expression Builder & Explainer
Build, validate, and explain 5-field Linux crontab schedules with local timezone next-run forecasting.
Markdown to HTML & PDF Exporter
Live Markdown previewer and Anti-XSS sanitized HTML / printable PDF exporter with GFM support.
Color Palette Generator & Contrast Checker (WCAG 2.1)
Verify color contrast ratios against WCAG 2.1 AA and AAA standards with harmonic palette generation and live component preview.
UUID v4 / v7, ULID & NanoID Batch Generator
Generate cryptographically secure UUID v4, time-ordered UUID v7, ULID, and NanoID in bulk with Web Crypto high entropy.
Word & Character Counter & Keyword Density
Multilingual word, character, sentence, and paragraph counter with 200 WPM reading time and keyword density analysis.
HTML & XML Entity Encoder / Decoder
Encode and decode reserved characters into Named, Decimal, and Hex HTML entities with anti-double encoding protection.
CSS Box-Shadow & Glassmorphism Generator
Interactive layered box shadows and modern frosted glass styling with live isolated canvas preview and copy-ready CSS.
Unix Timestamp & Epoch Time Converter
Convert seconds and milliseconds timestamps to human dates and dates to Unix epochs with local timezone parity and live ticking clock.
cURL to Fetch / Axios / Python / Go
Convert cURL commands to production-ready JavaScript Fetch API, Axios, Python requests, and Go net/http code instantly.