Online tools that never see your files.
Compress, convert, merge, calculate and clean up in seconds. Free, no sign-up: everything runs on your device.
- Files never leave your device
- No sign-up, no watermark
- Works offline
In the real tool you drag to reorder before merging.
Choose where each new file starts.
iPhone photos, converted on your device.
Most used
The everyday tools, one click away
Popular searches
Ready-made pages for the most common conversions, calculations and formats.
- PNG to JPG converter
- JPG to PDF converter
- Compress image to 100 KB
- Compress PDF to 1 MB
- WebP to JPG converter
- CM to Inches converter
- KG to Pounds converter
- Celsius to Fahrenheit converter
- UK VAT calculator
- Sales tax calculator
- Percentage increase calculator
- Cups to grams converter
- EST to PST converter
- HEX to RGB converter
- MD5 hash generator
- UUID v4 generator
- Base64 encode
- Uppercase converter
Catalog
All tools, by category
No tool matches that yet. We add more every week.
- Private by designYour files are processed on your own device and are never uploaded.
- Free, no sign-upNo accounts, no limits and no watermarks on the results.
- Works offlineAfter your first visit, the tools you have used keep working without a connection.
- FastNo uploads and no queues: the result appears in seconds.
Tools that run on your device, not on a server
For years, converting an image or signing a PDF meant uploading your file to some website, waiting, downloading it back with a watermark on it, and trusting that somebody deleted it afterwards. Browsers can now do that work by themselves, and that changes the rules.
UtilsDock is built on exactly that. When you use a tool here, the code that does the work is downloaded once and runs on your own device, like an installed program. The result is faster, because nothing has to travel up and back down, and far more private: there is no copy of your file on any server, because it never left your computer or your phone.
It also sets the limits, and we would rather say them out loud: the tools depend on your device's memory, so a very large file can be slow on an old phone. When a tool has a realistic ceiling, you will find it written on its page before you start, not after it fails.