I spend way too much time hunting for free online tools. So I built my own.
Here are 7 tools I made in 2 weeks, and why I think they're better than the alternatives.
1. AI Background Remover
Most background removers either upload your image to a server (privacy risk) or make you sign up (annoying). Mine runs the AI locally in your browser. No upload. No account.
Try it free: https://asus-bios-attitudes-hung.trycloudflare.com/tools/bg-remover
2. PDF Compressor
Ever tried compressing a PDF online? Half the sites are covered in ads, the other half have a 25MB limit. This one compresses locally with quality control.
Try it: https://asus-bios-attitudes-hung.trycloudflare.com/tools/pdf-compressor
3. Image Converter
PNG to JPG. WebP to PNG. ICO to anything. Batch-friendly, client-side, instant.
Try it free: https://asus-bios-attitudes-hung.trycloudflare.com/tools/image-converter
4. Color Palette Extractor
Upload any image, get the dominant colors with hex codes and percentages. I use this constantly for design work.
Try it free: https://asus-bios-attitudes-hung.trycloudflare.com/tools/palette
5. SEO Meta Analyzer
Enter any URL, get a full SEO audit: titles, descriptions, OG tags, Twitter cards, headings, image alt text, and a quality score.
Try it free: https://asus-bios-attitudes-hung.trycloudflare.com/tools/meta-analyzer
6. Text Diff Checker
Compare two texts side-by-side. Character-level change tracking. Better than most online diff tools I've tried.
Try it free: https://asus-bios-attitudes-hung.trycloudflare.com/tools/diff-checker
7. JSON Formatter & Validator
Format, minify, validate. Highlights errors with exact position. No bloat, no ads.
Try it free: https://asus-bios-attitudes-hung.trycloudflare.com/tools/json-formatter
The Stack
Every tool is Flask + vanilla JavaScript. No React. No Next.js. No build step. Each tool is under 100 lines of Python. The entire site runs through a Cloudflare Tunnel.
The Business Model
Most of the tools are free. Two premium tools (Background Remover + PDF Compressor) have a one-time unlock:
- .99 USDC on Polygon (50% launch discount, regularly .99)
- Lifetime access to all current and future tools
- No account needed — just a crypto wallet and a transaction hash
- No subscriptions, no upsells, no middlemen
I built this because I was tired of subscription fatigue. Every tool wants /month now. I'd rather pay once and own it.
Why Crypto Payments?
- 0% payment processing fees (Stripe takes 2.9% + /usr/bin/bash.30)
- Instant settlement (no 2-day wait)
- No chargebacks
- Works in every country
- No account bans or holds
What's Next?
I'm adding new tools every week. Drop a comment with what tool you'd find useful — I'll build the most requested ones.
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