eTips Tools

Web tools

A collection of simple, no-nonsense utilities for web developers and the general public.

Available tools

Screen size

Get the exact dimensions of your viewport, document and physical screen resolution. Perfect for diagnosing CSS or rendering issues on your clients' devices.

Utility

Chilean RUT generator

Generate fake RUTs for testing and development, or validate RUTs using the SII Modulo 11 algorithm. Look up public taxpayer data directly from the SII portal.

Design

Color converter

Convert between HEX, RGB and HSL instantly with a visual color picker. Get the CSS-ready code in any of the three formats.

Design

px → rem / em converter

Convert pixels to rem and em with a configurable base size. Includes a quick reference table and reverse conversion for responsive design and fluid typography.

Utility

URL encoder / decoder

Encode and decode text for URLs using the encodeURIComponent standard. Real-time or manual conversion, with one-click clipboard copy.

Finance

Chilean VAT calculator

Calculate Chilean 19% VAT instantly. Convert net to gross or extract the VAT from a VAT-inclusive price. Ideal for invoices and quotes.

Finance

Margin calculator

Calculate margin, markup and selling price from cost. Understand the difference between margin-on-price and markup-on-cost to set prices correctly.

Writing

Word counter

Count words, characters, sentences and paragraphs in real time. Calculate reading time and compare against SEO, Twitter and other limits.

Utility

QR generator

Generate QR codes from any text or URL. Customize size, colors and error correction level. Download as PNG with no watermarks.

Raffles

Raffle wheel

Add names, decisions or any options, spin the wheel and get a completely random winner. Perfect for raffles, draws and group dynamics.