Copy Paste Converter Hub
A fast, ad-free, no-login utility site for developers. Every conversion runs in the browser — JSON formatter, Base64, URL encoders, timestamp converter, hash generators — so nothing ever leaves your machine.
Built With
Project Timeline
Problem Discovery
Mar 2024Most online converter tools are bloated with ads, gate features behind sign-ups, and ship payloads to a server. Decided to build a privacy-first alternative.
Market Research & Feature List
Apr 2024Surveyed popular converter tools and prioritised the most-used utilities: JSON formatter, Base64 encoder, URL decoder, timestamp converter — all browser-only.
Architecture & Design
May 2024Picked Next.js with TypeScript for type safety and SSG. Designed the minimal, distraction-free UI on a CSS-variable design system with dark mode.
Core Converters Built
Jun 2024Implemented JSON formatter/validator, Base64 encode/decode, and URL encode/decode — all running purely in the browser with zero server calls.
Timestamp & Hash Tools
Aug 2024Added Unix timestamp converter and MD5/SHA hash generators with copy-to-clipboard feedback.
UX Polish & Accessibility
Sep 2024Added keyboard shortcuts, mobile-first layouts, and ARIA labels. Smooth transitions between tools.
Edge Case Hardening
Nov 2024Tested every converter with malformed inputs, empty strings, large payloads, and Unicode edge cases. Fixed whitespace handling in the JSON formatter.
SEO & Custom Domain
Dec 2024Configured converterhub.dev, added meta tags, sitemap, robots.txt, and structured data for rich search results.
Public Launch
Jan 2025Deployed to Vercel with the custom domain. Open-sourced on GitHub and shared with developer communities for feedback.
Community Iterations
Feb 2025Took feedback for colour converters and regex testers. Improved performance by lazy-loading tool components.