The .ips extension is used by both IPS ROM patches and the crash and hang reports macOS and iOS write. IPS stands for “International Patching System”, and its patches begin with the marker “PATCH” and end with an “EOF” marker. Because IPS uses three-byte offsets it cannot patch beyond about 16 MiB, and it carries no checksum to confirm the right file was patched. Analyser handles .IPS alongside related formats such as .NES, .GB, .GBC and more.

How do I open a .IPS file?

Drop a .IPS file onto Analyser at https://analyser.valjdakosta.com/ and it is identified directly in your browser - no upload, no account and no software to install. Inspect game ROMs, patches and engine assets: iNES/NES2.0, Game Boy/Color/Advance, SNES, Nintendo DS/DSi, Nintendo 64, and Sega Genesis ROM headers (title, mapper, region, checksum); IPS/BPS/UPS/PPF patches; Doom WAD lumps; Minecraft NBT/schematics and Bedrock bundles; Godot .pck; Quake/id Tech PAK/PK3; Source BSP/VPK/VMT; Valve VTF and Khronos KTX/KTX2 textures, whose block-compressed (DXT/BCn) and uncompressed surfaces are decoded to a real preview; Tiled maps; LÖVE games; PICO-8 carts - plus MPQ, 3DS/Switch and Ren’Py/RPG Maker identification.

Can I open a .IPS file online for free?

Yes. Analyser is a free online .IPS identifier that runs entirely in your browser - your .IPS file never leaves your device, so there is nothing to upload and no software to install. It even works offline once installed.

.IPS file - what it is and how to identify it online

Analyse a .IPS file

Home › Formats › .IPSID

What is a .IPS file?

The .ips extension is used by both IPS ROM patches and the crash and hang reports macOS and iOS write.

IPS ROM patch

What it is: An International Patching System patch for a console ROM (fan translations, romhacks). Analyser walks the patch records and reports how many there are, the run-length records and the highest offset touched.
How to tell it apart: An IPS patch begins with the ASCII text PATCH.

Apple crash report

What it is: A crash, hang or diagnostic report from macOS 12 or later, iOS or iPadOS (found in Console, ~/Library/Logs/DiagnosticReports or Settings > Privacy > Analytics). Analyser reads the app, version, bundle ID, OS build, device, exception type and codes, the faulting thread and the loaded binary images.
How to tell it apart: An Apple report is JSON text beginning with {.

Did you know: Analyser handles .IPS alongside related formats such as .NES, .GB, .GBC and more.
In Analyser's format library, .IPS sits in the Games category.
Analyser recognises .IPS files from their contents and reads what metadata it can - entirely on your device, with nothing uploaded.
Depth of analysis: .IPS is an identification-grade format: Analyser recognises it from its bytes and decodes the header metadata it carries, rather than opening it in a full viewer. Formats that do get a full viewer are marked "Full" on the formats page.
Open a .IPS file: Drag a .IPS file onto the Analyser home page (or tap to pick one). It is identified entirely in your browser - nothing is uploaded, there is no account, and it works offline once installed.
Related formats: .NES · .GB · .GBC · .GBA · .SFC · .SMC · .NDS · .DSI · .Z64 · .N64 · .V64 · .GEN · .SMD · .BPS · .UPS · .PPF · .WAD · .NBT and more. See all supported file types.