GhostTool is a free online tools platform built on one idea: your tools should run in your browser, not on someone else's server. Every utility here — converters, formatters, compressors, encoders, decoders, validators, generators and calculators — runs 100% client-side. That makes GhostTool a true no-upload tools platform: no file leaves your device, no tracking, no data collection, and no sign-up. Open a tool, use it instantly, anywhere in the world.

The toolkit grew from a few utilities into a privacy-first suite of fast online utilities used worldwide across Europe, North America, South America, Asia, Africa, and Oceania. Whether you are compressing an image, resizing a photo, merging PDFs, extracting a ZIP, formatting JSON, or generating a secure password, your data never leaves your device.

Every tool is open source under the GPL-3.0 licence and built to respect your privacy first — image tools, file tools, compression tools and resizing tools included.

Explore the Toolkit — Image, File, Compression & Resizing Tools

Browse all free online tools, jump to a specific tool category, or read the frequently asked questions. Browse image tools, file tools, compression tools and resizing tools — every tool runs entirely in your browser, no installation, no sign-up.

Privacy Statement — No Upload, No Tracking, No Servers

All GhostTool utilities run entirely client-side in your browser — no servers, no tracking, no cookies, no data collection. As a no-upload tools platform, your files never leave your device. Learn more on the privacy guarantee.

Connect & Follow the Project

Follow FrostByteCode — the solo developer behind GhostTool — on GitHub, YouTube, and Reddit for updates, open-source contributions, and new tools.

Support GhostTool

100% free and ad-free. If you find these tools useful, consider supporting the solo developer with a crypto donation.