🛡️ 100% Client-Side • Zero Server Tracking • Free Forever

Everyday Physics, Design &
Developer Utilities

A curated collection of micro-tools for engineering, baking, moving, vector printing, and software development. Instant execution in your browser with zero logins.

🌟 Featured Precision & Everyday Tools

Unique zero-competitor web solvers

Furniture doorway & 90° corner physics simulator with tight squeeze safety warnings.

Physics & Moving Launch →

Baking pan geometric area converter with full recipe text parser and oven thermal advice.

Kitchen Geometry Launch →

Display cable bandwidth diagnostic. Detects HDMI 2.1 fake specs, chroma blur & DSC support.

Hardware & Gaming Launch →

Vector printable stationery lab. Dot grid, Cornell notes, 3D isometric & sheet music to PDF.

Vector Stationery Launch →

Zero-auth, CORS-enabled free public REST mock endpoints for fast prototyping.

API & Prototyping Launch →

FFmpeg Command Studio

Visual FFmpeg command builder for Discord 10MB compression, crisp GIFs & audio extraction.

Video & Media Launch →

Whisper Subtitle Cleaner

Filter AI hallucination loops, normalize timestamps, and strip filler words from SRT/VTT.

AI & Subtitles Launch →

JWT Token Inspector

Client-side JWT decoding, expiry timer, and HMAC-SHA256 signature verification.

Security & Auth Launch →

LLM Token Counter

Accurate token and cost estimator for GPT-4o, Claude 3.5 Sonnet, and Gemini 1.5.

AI & LLM Launch →

Palette Extractor

Extract dominant color schemes from images with Tailwind & CSS Variables export.

Design Tokens Launch →

Cron Expression Visualizer

Interactive cron syntax explainer, next execution timeline, and preset generator.

DevOps & Cron Launch →

Social Card Previewer

Real-time OpenGraph preview for Twitter, Facebook, Discord, and LinkedIn.

SEO & Social Launch →

Convert raw cURL terminal commands into production Python, Node.js fetch, or Go.

Code Generator Launch →

CIDR Subnet Calculator

Visual IPv4 network calculator with usable host ranges, broadcast addresses, and binary bits.

Networking Launch →

Header Security Analyzer

Audit HTTP response headers for missing CSP, HSTS, X-Frame-Options, and CORS flags.

Web Security Launch →

Set-Cookie Parser

Break down complex cookie headers, validate SameSite, Secure, and HttpOnly attributes.

Web Standards Launch →

Env • JSON • YAML Sync

Bi-directional conversion between .env files, JSON configurations, and Docker YAML.

Config Utility Launch →

CSV to Markdown Table

Paste Excel spreadsheets or CSV data to generate perfectly aligned GitHub markdown tables.

Formatting Launch →

Linux Chmod Calculator

Visual permission matrix, octal calculator (e.g. 755, 644), and symbolic explanation.

Linux & CLI Launch →

Bcrypt Hash Generator

Client-side Bcrypt password hashing with configurable salt rounds and match testing.

Cryptography Launch →