About utilobox
Who runs it
This site is a personal project run by an independent developer in the Republic of Korea. It is not a company: one person builds and maintains the tools.
What you can do here
The site brings together free tools for everyday tasks with documents, pictures, text and time:
- PDF: merge, split, organize and compress PDF files, and convert between JPG and PDF
- Images: convert, compress and resize photos, including iPhone HEIC and WebP images
- Text: count characters, words, sentences, lines and bytes
- Time: a countdown timer, a stopwatch, an alarm clock and a Pomodoro timer
- Random: a spinning wheel picker and a random number generator
Your files stay on your device
Every tool runs in your web browser. Files you open are processed on your own computer or phone and are never uploaded to a server, so they never reach us.
There is no sign-up, no watermark and no daily limit. The only practical limit is your device's memory, which is why very large files are easier to handle on a computer than on a phone.
Why it's free
The tools are free because the site shows ads. You don't need an account or a subscription to use any of them.
Contact
Questions, bug reports and ideas for new tools are welcome at [email protected].