Extract text from Nostalgia.NES saved games (NNES)
To convert NNES saved games to another format, you need Nostalgia.NES or other Game software.
To convert other file formats to the "Emulator Save State" file type, you need software like Nostalgia.NES or a similar tool.
The .NNES file format is a proprietary save state created by the Nostalgia.NES emulator for Android devices. Players use these files to instantly freeze and resume Nintendo Entertainment System (NES) games at exact moments, bypassing traditional in-game save points.
The main disadvantage of the .NNES format is its closed, emulator-specific architecture. Unlike standard SAV battery saves (SRAM) that write in-game progress to a universal format, a save state dumps the exact CPU registers, memory, and audio state of the Nostalgia.NES application. This means .NNES files are entirely useless on PC emulators like Mesen or FCEUX. Furthermore, these files easily break if the emulator app is updated or if the exact same ROM version is not used.
Users typically want to convert .NNES to standard SAV files to migrate their RPG or adventure game progress to a PC or another mobile emulator. Direct conversion to other state formats (like STATE or FCS) is architecturally impossible because different emulators map memory differently. The only realistic conversion path is to load the state and save the game natively.
Because this is a closed, proprietary memory dump, standard online converters fail to process it. Often, only the original Nostalgia.NES software can properly read or export the data. If our analysis detects a supported underlying or embedded standard save block within the dump, viewing or conversion may still be possible.
Convert.Guru analyzes your NNES file, detects the exact format, and lets you read the text inside.
If you want to convert NNES file to , you can use Nostalgia.NES or similar software from the "Emulator Save State" category. In the File menu, look for Save As… or Export….
To convert files to NNES, try Nostalgia.NES or another comparable tool in the "Emulator Save State" category.
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our NNES converter.