Opening a FAP File

The FAP file type is primarily associated with esptool.py.

FAP	File extension: FAP
	File type:	binary executable file

What is a FAP file?

FAP files mostly belong to esptool.py. FAP files are used in different contexts. Most commonly, they carry ESP32 firmware in an ELF binary format, often referred to as a Flipper Zero application file. You can manage these with tools like esptool.py.
Other instances serve as game save files for Faust games, sometimes called Faust Adventure Player files, which store game progress. A small group is used with Formaker software, holding form and appearance data for document files.
Key points compiled by FilExt.com:

Firmware images use the ELF format for embedded devices.

Game save files record user progress in Faust games.

Formaker files preserve document layout and form data.

FilExt.com note: If you have a FAP file, first check its header or use a hex editor to see if it’s a firmware image, game save, or document file. Then use the corresponding tool to view or edit it.

How to open FAP files

You need a suitable software like esptool.py to open a FAP file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your FAP file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a FAP file directly in the browser:. Just drag the file onto this browser window and drop it.

Online FAP Text Viewer

Choose your .fap file to analyze

or drag and drop it here

Online File Viewer

✈

Read our privacy guarantee in Filext’s terms and privacy policy

Please allow ads on our site

This helps us keep our servers running. Then re-upload your file to view it.

Click here to see how to disable the ad blocker for filext.com

FAP file format details:

If you know the file format, you can also find out how to open or edit the file. A file format is determined by the file extension and signature, so JPEG images have the extension .jpg and the first bytes in the file are ÿØÿ. Nonetheless, different programs can utilize the same file extension to represent distinct file formats. Double-clicking on the file often results in an error when opening. So you need a detailed analysis of a file to find out the format and the associated program. Our evaluation of the FAP files is as follows:

You will often come across the FAP file type. This predominantly uses a uniform format. The two most popular formats are as follows:

• 75% of all FAP files are associated with Flipper Zero Application files, which internally utilize the well-known ELF format. ELF is the abbreviation for Executable and Linkable Format and is the standard binary format on Linux and Unix. They consist of illegible, cryptic characters. The files are on average 35 KB in size and range from 5 KB to 73 KB. The file type is very recent. The file name ble_spam.fap or ESP32_WiFi_Marauder.fap is typical for these files. Such FAP files store data about spam, wifi, marauder, subghz, apple, bruteforcer, portal and evil.
• 15% of all FAP files use the same file format, which can be identified by the letters "80 02 63 66 61 75 73 74 2E 47 61 6D 65 53 74 61" at the beginning. The content also consists of readable text fragments, which can be viewed with the help of a text editor. FAP files can be up to 65 KB in size, but are often around 17 KB - 38 KB. The files contain the following words: GameState, cfaust.GameState, versionq, RNGState, Random, cfaust.RandUtil, crandom, rngq, seedq and current_menu_objectsq. Files like these have the following tags: save.

The remaining 10% of all FAP files are files with no common format, such as PARIS Audio Format audio. The category is trigger, fuzzer, remote, rfid, playlist, infrared, flipper, player or game. Just click the "Choose your .fap file to analyze" button on this page to find out what your FAP file is.