Stack Online Tools

Unlock a powerful collection of free, privacy-focused online tools designed for developers, content creators, and everyday users. Stack Online Tools brings together fast, lightweight utilities that run directly in your browser — no sign-up, no data collection, no downloads.

✨ Features:
✔ Format & validate JSON
✔ Convert between JSON ↔ YAML
✔ Encode/Decode Base64 & URLs
✔ Minify JavaScript, CSS, and HTML
✔ Generate robots.txt files
✔ Convert text cases (upper, title, sentence, camel, snake, kebab)
✔ Count lines, repeat text, randomize lists
✔ Convert PNG ↔ JPG client-side
✔ Generate strong passwords
✔ Check password strength in real time
✔ Calculate age, percentages, and more
✔ Use random name/address generators
✔ Convert PDF ↔ JPG (web app)

If you’re a developer, creator, student, or just someone who wants quick browser tools without the hassle — Stack Online Tools is built for you.