Andrés Movilla
Tools
A collection of small tools and utilities I've built — mostly for fun, sometimes for need.
Dev Tools
Dev Toolbox Curated collection of development resources, design tools, and libraries organized by category JSON Formatter Format and validate JSON data offline in your browser XML Formatter Format and validate XML data directly in your browser CSV to JSON Convert CSV data into JSON format by uploading files or pasting data CSS Grid Builder Visually design and generate CSS Grid layouts without writing code Project Timetable Plan and assign dev features across frontend, backend, and mobile teams with timeline tracking UI Components Storybook-based component library for browsing and testing React UI components Markdown Previewer Write and preview Markdown with live rendering in your browser Regex Playground Test and debug regular expressions with live matching and highlighting Base64 / URL Encoder Encode and decode Base64 and URL strings directly in your browser Cron Expression Builder Build and validate cron expressions with a visual, interactive interface Meta Tag Generator Generate SEO-friendly meta tags for your web pages with live preview SVG Optimizer Optimize and minify SVG files to reduce size without losing quality PX to REM Converter Convert between PX and REM units for responsive CSS design Gradient Generator Design and generate CSS gradient backgrounds with visual controls Shadow Generator Create and customize CSS box shadows with a visual editor Color Converter Convert colors between formats and extract colors from images with an eyedropper Color Palette Generator Generate color palettes with harmony rules, Tailwind shades, and accessibility checks Favicon Generator Generate favicons in multiple sizes from any image for your website Placeholder Generator Generate placeholder images in custom sizes for mockups and prototyping LaTeX Editor Write and preview LaTeX documents with live rendering in your browser
Utilities
QR Code Generator Generate QR codes from text or URLs Word Counter Count words, characters, and paragraphs offline Bulk Image Converter Convert SVG, JPG, WEBP, and PNG images to any format, multiple files at once Countdown Timer Simple countdown timer with hours, minutes, and seconds Salary Converter Convert salaries and wages across different currencies and time periods Colombia Holidays View Colombian public holidays, work day calculations, and date tools Downtime Tracker Monitor and record when your internet connection goes down Ghost Ink Minimal, distraction-free writing environment Elemental Messages Spell out messages using periodic table element symbols Bento Portfolio Bento grid-style portfolio showcasing projects, skills, and experience Business Card Digital business card with contact info and downloadable vCard Food Roulette Spin a slot-machine roulette to randomly pick what to eat Kakuro Solver Build and automatically solve Kakuro number-crossword puzzles Focus All-in-one focus dashboard with timer, tasks, notes, planner, pomodoro, stats, calendar, and customizable background videos