Open PBO files in your browser

The archive Arma, DayZ and Operation Flashpoint keep their addons in, and every mod for them comes in. Open one right here, its config as text and its textures as pictures. Nothing leaves your device.

Or drop it anywhere on this page

What you'll see

Your file opens like a folder, its files listed on the left, with a page beside them on what it is and what it holds.

marsh_lanterns.pbo

PBO • 64 files • 8.9 MB

  • Listed like a folder • Unpacks only what you pick
  • A page on what it is • From its own manifest or index
  • Pictures, sounds and text • Each opens in its viewer
  • Export • Save as ZIP or Extract all

About PBO

Bohemia Interactive's games, from Operation Flashpoint to Arma 3 and DayZ, load their data from .pbo files, and Steam Workshop mods ship theirs in an addons folder.

A PBO starts with a list of its files, each with its size and whether it's packed with LZSS. The first entry carries properties, like the prefix that sets where its files sit in the game, and Arma's PBOs end with a SHA-1 of the rest. Configs are rapified, a binary form of their text.

Filepeek lists a PBO like a folder under its prefix, with a page on its properties and the addons its config declares. config.bin opens as the config.cpp it was made from, PAA textures open as pictures, and scripts, materials and missions as text.

Arma addon archive

Format

MIME type
application/octet-stream
Made by
Bohemia Interactive

Inside the file

Directory
Each file with its size
Properties
Prefix, product and version
Configs
Rapified config.bin
Textures
PAA, with DXT1, DXT5 and plain pixels

Opens in every browser

No browser opens a PBO: 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 open a PBO file?

Drop it on this page or choose Peek a PBO. Its files are listed like a folder under the addon's prefix, with a page beside them on the addon.

Can I read config.bin?

Yes. Filepeek turns it back into the config.cpp text it was made from, which opens in the text viewer.

Can I see PAA textures?

Yes. PAA textures open as pictures in the image viewer, where Export saves them as PNG or JPEG.

Is my addon uploaded?

No. It opens inside your browser and never leaves your device.

More game formats

All supported file types

Opens in a new tab

EXIF

Verify

License

Signature