About HeavyToolz

HeavyToolz is a growing collection of free, fast, and private online tools — built on one simple idea: a tool you use for thirty seconds shouldn't require an account, a subscription, or your file being uploaded to someone else's server.

Every tool on this site — from the JSON formatter to the background remover — runs directly in your browser. Text is counted, images are compressed, and PDFs are merged using your device's own processing power. Nothing you type or upload is ever sent to us.

What you'll find here

• Text & Writing — word counters, case converters, diff checkers, and cleanup utilities.
• Developer Tools — JSON formatting, JWT decoding, hashing, encoding, regex testing, and more.
• Image Tools — compression, resizing, format conversion, watermarking, and AI-powered background removal.
• PDF Tools — merging and splitting PDFs without any upload.
• Pakistan Calculators — income tax, Zakat, gratuity, provident fund, vehicle token tax, electricity bills, and more, built around local rules and units.

Who's behind it

HeavyToolz is built and maintained by Ameer Hamza. The goal is straightforward: keep adding genuinely useful tools, keep them free, and keep your data on your own device.

Get in touch

Found a bug, have a tool idea, or want to report incorrect data in a calculator? Visit the Contact page — we read every message.