Show HN: Free developer utility API – QR, fake data, URL shortener, 40 tools(conway-toolbox-production.up.railway.app)

1 pointsby devtoolbox5 miesięcy temu3 comments

conway-toolbox-production.up.railway.app

Show HN: Free developer utility API – QR, fake data, URL shortener, 40 tools

https://conway-toolbox-production.up.railway.app/ui

I built a free REST API for common dev tasks that usually require pulling in heavy dependencies or writing boilerplate.

Features include: - URL shortener with click analytics - QR code generation (PNG/SVG/data URL) - Fake/mock data generator (person, address, email, company, etc.) - JWT decoder, regex tester, password generator - JSON diff/format/minify, YAML↔JSON, Markdown→HTML - Base64, SHA256/MD5/SHA512 hashing, UUID v4 - Cron expression explainer, number base converter - IP info, HTML tag stripper, list processor

No auth required for basic usage (rate limited). Pay 1 USDC on Base L2 for an unlimited API key.

Also available as a zero-dependency npm package: npm install conway-toolbox

3 comments

tornadofart5 miesięcy temu

Is the QR code feature also supposed to work in the UI? Couldn't get it to work on firefox and chrome on my phone.

devtoolbox5 miesięcy temu

Thanks for testing and reporting this! The QR endpoint itself works fine directly (POST /qr with {"text":"hello","format":"png"}), but sounds like the UI form may have an issue on mobile.

Can you tell me what happens – does the button just not respond, or do you get an error? I'll look into it now and push a fix if there's a mobile layout bug.

In the meantime, the raw API endpoint should work fine from any HTTP client.

devtoolbox5 miesięcy temu

Update: just pushed a fix that adds a loading indicator and visible error messages to the QR UI, so if it's failing silently that should now surface the error. Deployed ~2 min ago.

If you can reproduce it again and see an error message, I'd love to know what it says. Could be a rate limit hit, a CORS issue, or something else entirely.