Privacy first: your files never leave your device
Most online tools upload your product images, contracts and customer data to someone else's server. CrossKit is built the other way around: the heavy work happens in your browser.
Runs on your device
Compression, resizing, PDF merge/split, QR codes, CSV cleaning and calculations use browser APIs. Your files are read into memory, processed, and handed back to you — no upload step exists.
When we do use a server
AI writing and translation tools need server-side models. Those requests are processed, returned, and the stored text is deleted within 24 hours. Each tool page states which category it belongs to.
What we never do
We do not sell your data, do not use your product content to train models, and do not require an account to run the free tools. Analytics only loads after you accept cookies.
Which tools are 100% local?
- CSV Formatter
- Currency Converter
- GIF Compressor
- Image Compressor
- PDF Compressor
- PDF Merger
- PDF Splitter
- Profit Calculator
- QR Code Generator
- URL Cleaner
- UTM Builder
Everything else uses server-side AI; those pages show the "auto-deleted in 24h" badge instead of the local badge.
Try it without signing up
Open any tool, drop a file in, and watch your network tab stay quiet — that is the whole point.
Browse all tools Full privacy policy