The network for creativity
Join 1.25M professional creatives like you
Connect with clients, get discovered, and run your business 100% commission-free
Creatives on Contra have earned over $150M and we are just getting started
Back to feedPost
Most "free online tools" want your file on their server.
Subtrate doesn't. 🔒
23 tools — image compressor, PDF merge, JSON diff, regex tester,
passport photo maker, watermark remover — and every single one
runs inside your browser tab. Your file never touches a network.
No account. No upload. No paywall.
The hard part wasn't the privacy claim. It was making
client-side actually fast: image codecs, PDF operations, and
regex matching all run in Web Workers so the UI never freezes,
even on a 40MB file.
Built with TanStack Start + React 19, server-rendered for SEO,
shipped as a multi-stage Docker image.
#react #typescript #webdev #privacy #frontend
And the tool list is still growing. What do you keep googling, then close 6 ad-filled tabs to use? Drop it below — if it runs client-side, it's a candidate.
The network for creativity
Join 1.25M professional creatives like you
Connect with clients, get discovered, and run your business 100% commission-free
Creatives on Contra have earned over $150M and we are just getting started
Trending
retrofuturism
Share your favorite designs from the past exploring the distant future. Or your own take on the aesthetic 🚀
halftone
Dots. Texture. Grain. Let's see your designs using the halftone technique.
Midjourney
Creatives are showing off what they're making with Midjourney.
colorgrade
Video editors sound off: How do you enhance the mood of your video in color grading?
Related posts
FOCUS TIME: ADHD-Friendly Productivity App Design & Development (UI/UX + React): https://focustimeisnow.netlify.app/
This app was made by me for the Contra 2026 Figma config makeathon. In the end, I produced the version with the original design (and I like this version more), and the version for the Makeathon was a prototype.
Most productivity apps are built around one assumption: a clean list plus a timer equals done. That works if your brain reliably starts tasks, tracks time accurately, and finds a plain checkmark rewarding. For a lot of ADHD brains, none of those three things are reliable, so I designed and built a tool around a different assumption entirely.
FOCUS TIME is a gamified, retro-vaporwave productivity web app where every feature has a specific behavioral reason behind it, not gamification for its own sake, and not another app quietly glorifying hustle culture. Health and rest are built directly into the scoring system: the Overall Score combines HP (Health Points) with MP (Magic Points, your work/rest/distraction balance), plus Strength, Motivation, and Wisdom. If HP and MP aren't balanced, the score doesn't look good, no matter how many tasks got checked off. The app won't reward burning yourself out to finish a list, and it won't reward rushing through one either: the scoring pushes back on the quantity-over-quality mindset that social media has normalized and rewards actually giving a task the time it needs.
WHAT I DESIGNED & BUILT
🟡 A visual moodboard planning system (drag-and-drop images, stickers, notes, and a single task checklist), because externalizing a plan spatially works better for a lot of ADHD brains than a plain text list.
🟡 A focus timer with optional Pomodoro breaks and a body doubling mode, targeting time blindness and the real, research-backed boost from working alongside someone else.
🟡 A mood-tracking and honesty-check system feeding directly into the scoring engine.
🟡 A full gamified scoring system (HP/MP/STR/MOT/WIS/DET, power-ups, a hearts-based accountability mechanic) designed around immediate, visible reward instead of distant, abstract praise.
🟡 A complete retro/Y2K/vaporwave visual identity, designed end-to-end in Figma.
This is an example of my skills in product design, UI/UX, and frontend development: from the original Figma design system through a full technical specification to a working app. To know more about my stack, visit my portfolio: https://grevaleart.com/
The stack underneath is React, TypeScript, Vite, and Tailwind CSS, with React DnD powering the drag-and-drop moodboard editor, React Router handling navigation, and Motion handling the UI animations.
I’m exploring two hero-section directions for a new academy landing page. Which approach would you choose?
A or B and why?
4 voted
44%
5 voted
56%
9 votes
Closed
Impressive 😍
🎥 Quick walkthrough: Auto Transport website I built for a US client — fully responsive across desktop, tablet, and mobile.
Built with React & TypeScript for a car hauling / auto transport business. In this video you can see the "Get a Free Instant Quote" flow adapting smoothly across screen sizes — no janky breakpoints, no layout shifts, just a clean experience whether someone's on a laptop or scrolling on their phone.
Responsiveness isn't just "does it look okay on mobile" — it's whether the actual conversion flow (in this case, the quote form) stays usable and fast across every device. That's what I focus on with every build.
#WebDevelopment #ReactJS #TypeScript #ResponsiveDesign #Freelance #FullStackDeveloper
