UniTools - Universal TOOL

A comprehensive web application with 40+ free, browser-based utility tools for developers, designers, and creators - no sign-up, no uploads, no tracking. Built with Next.js 16, React.js 19, Tailwind CSS v4

Tech Stack

Next.js

TypeScript

Tailwind CSS

Supabase

Live Demo

Overview

UniTools is a client-side web utility platform with eight browser-only tools: image converter, compressor, resizer, favicon generator, background remover, SVG editor, color picker, and password generator. Built on Next.js 16 and React 19 using Canvas.

Challenge

Maintaining 100% client-side processing while ensuring performance, memory safety, Web Worker integration, cross-browser canvas reliability, responsive UI, correct Tailwind v4 usage, consistent animations, and reliable file downloads poses engineering challenges.

Outcome

Delivers private, fast, browser-only tools with predictable downloads, responsive UI, reusable components, clear developer patterns for adding tools, TypeScript safety, Tailwind styling, maintainability, and optional analytics with safe console fallback.