Free Online File Tools
Inspect files without handing them over. The first tool opens an APK and reads its package metadata, signing certificate and components, entirely in your browser.
APK Viewer
Select an APK to read its package name, version, signature scheme, certificate fingerprints, permissions and every entry inside the archive.
Open the APK viewerExtract Resources
Upload an EXE, MSI, APK or other installer and pull out the images, videos and animations stored inside, all in your browser.
Open the resource extractorHow the File Tools Work
Each tool reads your file locally and shows the parts you care about, without a server round trip.
| Step | Handled by | Where it runs |
|---|---|---|
| Reading the file | Browser File API | Your device |
| Parsing the archive | JavaScript ZIP reader | Your device |
| Reading the certificate | JavaScript X.509 parser | Your device |
| Showing the result | The page you are on | Your device |
Privacy: the file is read in memory and parsed on the spot. Nothing is uploaded to the 73hi server and nothing is stored after you close the tab.
File Tools FAQ
Are these file tools free?
Yes. The file tools on 73hi are free to use with no signup and no daily limit.
Is my file uploaded anywhere?
No. The file is read locally in your browser and parsed on the spot, so it never reaches the 73hi server.
Which file formats are supported?
The APK viewer reads Android application packages. More file oriented tools will be added to this category over time.