Antonio Altomonte

@devtoolsmith

Building developer tools and SaaS products

SpainJoined March 2026

About

Solo developer building 7 SaaS products. Founder of ToolKit Online (140+ free tools), CaptureAPI, CompliPilot, AccessiScan, ChurnGuard, and DocuMint. Open source enthusiast based in Spain.

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Antonio Altomonte's blogs

DevToolsmith Blogdevtoolsmith.hashnode.dev50 posts

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AAAntonio Altomontedevtoolsmith.hashnode.dev1d ago · 4 min read

Stop Self-Hosting Headless Chrome Just to Take a Screenshot

Every few months a teammate opens a pull request titled something like "add OG image generation," and every few months it turns into a saga. The feature itself is one line of intent: render a webpage

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AAAntonio Altomontedevtoolsmith.hashnode.dev1d ago · 4 min read

Accessibility Overlays Won't Pass a WCAG Audit. Here's What Actually Will.

If you've shipped a site in the last few years, you've probably been pitched an accessibility "overlay" — a single script that promises instant ADA compliance with a floating widget in the corner. It'

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AAAntonio Altomontedevtoolsmith.hashnode.dev1d ago · 3 min read

Stop Hand-Designing Open Graph Images: Automate Link Previews for Every Page

Open Graph images are the single biggest factor in whether your shared links look credible or broken. Yet most sites ship one generic image on every page because making a unique one by hand is tedious

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AAAntonio Altomontedevtoolsmith.hashnode.dev1d ago · 4 min read

Why Your Webhook Returns 200 But Still Fails (and How to Actually Debug It)

Webhooks are deceptively simple until they break silently. The provider says "delivered," your endpoint returns 200, and yet the thing that was supposed to happen never happens. This post walks throug

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AAAntonio Altomontedevtoolsmith.hashnode.dev1d ago · 3 min read

You Set Up HTTPS. You Still Forgot These 5 HTTP Security Headers.

Getting a green padlock feels like the security box is checked. It isn't. HTTPS encrypts the connection, but it says nothing about clickjacking, script injection, or whether browsers will quietly down

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Antonio Altomonte

About

Available for

Antonio Altomonte's blogs

Recently published

Stop Self-Hosting Headless Chrome Just to Take a Screenshot

Accessibility Overlays Won't Pass a WCAG Audit. Here's What Actually Will.

Stop Hand-Designing Open Graph Images: Automate Link Previews for Every Page

Why Your Webhook Returns 200 But Still Fails (and How to Actually Debug It)

You Set Up HTTPS. You Still Forgot These 5 HTTP Security Headers.

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Antonio Altomonte

About

Available for

Antonio Altomonte's blogs

Recently published

Stop Self-Hosting Headless Chrome Just to Take a Screenshot

Accessibility Overlays Won't Pass a WCAG Audit. Here's What Actually Will.

Stop Hand-Designing Open Graph Images: Automate Link Previews for Every Page

Why Your Webhook Returns 200 But Still Fails (and How to Actually Debug It)

You Set Up HTTPS. You Still Forgot These 5 HTTP Security Headers.