Electron
One codebase for Windows and Mac
Hi, I'm Elvis.
I'm Elvis Zygmanta, and Hollowbit is my studio for small, free tools that do one job well and treat the people using them with respect.
Why Fileshaper exists
Shrinking a video for Discord, opening an iPhone photo on Windows, signing a PDF: almost everyone has to do these things. The usual answer is a website that wants you to upload your files, wait in a queue and pay to remove a watermark.
That felt wrong for jobs a normal computer can do in seconds. Fileshaper is the answer: one app for video, images, PDF and audio that runs entirely on your own computer.
It ships with installers for Windows and Mac, this website, and 21 automated tests that drive the real app to check every tool works.
What Hollowbit sticks to
- No ads
- Not in the app, not on the website.
- No accounts
- You shouldn't need to sign up to convert a file.
- No tracking
- No analytics and no data collection.
- Open source
- Every line of code is public.
How it's built
FFmpeg
Video, audio and image processing
pdf-lib and PDF.js
Editing, signing and drawing PDFs
Two-pass encoding
Lands just under a target file size
Playwright
21 end-to-end tests on the real app
No network calls
Works with the Wi-Fi off