Open AppImage files in your browser
A Linux app in one file that runs on most distros without installing. Open one right here to see the app, what it needs and where it updates from. Nothing leaves your device.
Or drop it anywhere on this page
What you'll see
Your app opens like a folder, its files listed on the left, with a page beside them on what it is, who signed it and what it asks for.
- Its signature • Checked inside your browser
- SHA-256 • Compare it or look it up on VirusTotal
- Heads-ups • What it asks for and what runs
- Its files • Manifests open as text
About AppImage
An AppImage is a small program with a SquashFS image after it: the program mounts the image and runs AppRun inside, which starts the app with the libraries it carries. A .desktop file names the app for the menu, beside its icon.
Most AppImages need FUSE to mount themselves. Update information inside says where AppImageUpdate fetches new versions, often a project's GitHub releases. An AppImage can carry a signature, with the key it was made with, and nothing else vouches for that key.
Filepeek lists the app's files from its image and reads its .desktop file, its AppStream details, its processor and what it needs. It checks a signature with the key it carries, says where it updates from, and flags apps that turn off Chromium's sandbox.
AppImage Linux app
.appimage
Format
- MIME type
- application/vnd.appimage
- Made by
- Simon Peter and the AppImage project
- Released
- 2013
Inside the file
- Runtime
- An ELF program that mounts the image
- Files
- SquashFS
- Menu
- A .desktop file and its icon
- Signature
- OpenPGP, with the key it carries
Opens in every browser
No browser opens an AppImage: they download it. Filepeek opens it as a folder in Chrome, Edge, Firefox and Safari.
- YouChromeOpens through Filepeek
- YouEdgeOpens through Filepeek
- YouFirefoxOpens through Filepeek
- YouSafariOpens through Filepeek
Questions
How do I see what an AppImage is without running it?
Drop it on this page or choose Peek an AppImage. A page shows the app, its version, what it runs on and where it updates from, and its files are listed like a folder.
Can I check an AppImage's signature?
Yes, when it has one. Filepeek checks it with the key the AppImage carries, which shows the file wasn't changed after it was signed, though not who holds the key.
How do I look up an AppImage on VirusTotal?
Filepeek works out its SHA-256 inside your browser. Look up on VirusTotal opens VirusTotal's page for that hash, and only the hash goes, never the file. Compare checks it against a SHA-256, SHA-1 or MD5 you paste.
Does opening an AppImage run it?
No. Filepeek only reads it: nothing in it runs and it never leaves your device.
Can I get files out of an AppImage?
Yes. Pick any file on the left to open it. Its .desktop file opens as text. Export saves them all as a ZIP, or, in Chrome and Edge on a computer, extracts them into a folder.