Game Boy Advance cartridges can use several raw nonvolatile-memory sizes, while common emulator exports often expose only the battery-save bytes. Phase 35 therefore makes the target geometry an explicit user decision instead of pretending the raw bytes identify the game or chip. The only size-changing operation is safe extension with erased-memory 0xFF bytes; no source bytes are dropped. This is a raw-save utility, not an RTC converter, save-state converter, or game-specific editor.
Emulator & Retro Tools
GBA Save Converter
Normalize a raw Game Boy Advance battery-save copy to an explicitly selected EEPROM, SRAM, or Flash geometry without truncating source bytes or guessing the game.
01 / Tool workbench
Use the runtime only when it is actually ready.
The application shell fails closed. An input interface is not enabled merely because a WordPress Tool record exists; the declared engine must be registered in the current build.
Session change summary
No output has been built in this session.
02 / Compatibility
Know the supported input before opening a file.
Compatibility fields are intentionally explicit. Missing values stay unclaimed rather than being filled with generic assumptions.
Accepted extensions
.sav.srm
Platforms
Game Boy Advance / mGBA
Supported versions / editions
Raw GBA battery-save byte arrays matching mGBA save-memory geometries. A 64 KiB file is structurally ambiguous between supported SRAM/Flash choices, so the user selects the target explicitly.
Input constraints
Input must be a non-empty raw battery-save from a known GBA context and must not exceed the explicitly selected target size. Supported targets are 512-byte or 8 KiB EEPROM, 32 KiB or 64 KiB SRAM, and 64 KiB or 128 KiB Flash. Exact-size input is copied byte-for-byte; shorter input is extended with 0xFF; oversized input is rejected.
Known limitations
The raw file contains no universal game identifier or save-memory magic. This tool does not infer the owning game, choose SRAM versus Flash from bytes, create emulator wrappers, append RTC metadata, repair game checksums, decrypt saves, or convert save states. It never truncates an oversized source.
Output / result
A new raw .sav copy with the selected exact geometry. Existing source bytes retain their order; any newly allocated tail bytes are 0xFF.
03 / Instructions
Use a reversible workflow.
File-oriented workflows start with an untouched original. Tool-specific instructions add only details documented for this utility.
- 01Keep the original
Preserve an untouched copy before creating or transforming binary output.
- 02Confirm scope
Match the file size, format, platform, and version to the support information on this page.
- 03Process locally
Use the runtime only when the page reports that its declared engine is loaded.
- 04Validate output
Compare or test the result before replacing any working source file.
Tool-specific steps
Choose a raw save exported from a known GBA game/emulator context, select the intended memory geometry, then normalize locally. If the input already has the exact target size, the output is an exact copy. Keep the original until the target emulator or hardware workflow accepts the result.
04 / Privacy and processing
The processing mode is part of the product contract.
SaveEditor.com should state local processing only when the implementation truly keeps file contents in the browser. Server or hybrid processing must be disclosed just as clearly.
Declared mode
Browser local
Runtime state
Operational
Tool-specific privacy notes
Phase 36 reads a selected file only after explicit local file selection. Parsing, inspection, normalization, extraction, and supported conversions run in the browser. The emulator-retro runtime contains no fetch, XMLHttpRequest, WebSocket, or sendBeacon calls. The shared file ceiling is 16 MiB, with stricter format-specific limits where appropriate.
05 / Troubleshooting
When a file is rejected, do not force it.
A rejection can indicate an unsupported size, format, version, platform, or byte sequence. Preserve the original and correct the input instead of bypassing validation.
Re-check the documented input type and browser size limit before retrying.
A generic converter does not imply support for every game-specific container, signing scheme, or serialization format.
Return to the untouched source instead of repeatedly processing a damaged or partially transformed file.
Known Tool issues
If the source is larger than the selected target, stop and verify the correct save-memory type instead of selecting a smaller geometry. A 64 KiB file can represent more than one memory technology, and SaveEditor intentionally does not decide between them from size alone.
06 / Verification
Support claims should be traceable.
The verification date, method notes, and public references are kept separate from marketing language so compatibility can be reviewed over time.
Last verified2026-08-08
Profilegba-save-converter
Method notes
Verified against mGBA save-memory size constants and savedata initialization behavior, with deterministic exact-copy, 0xFF-extension, oversize-rejection, ambiguity, and browser-local regression fixtures.
07 / FAQ
Questions to answer before editing.
These answers are generated from the Tool record and current runtime state rather than generic compatibility promises.
Is GBA Save Converter ready to use?
The Tool record is verified and declares an operational runtime. The page enables its input controls only when the declared engine module is loaded in the current build.
Does processing stay in the browser?
Yes for this declared mode. The loaded runtime processes the explicit input in the browser; Tool-specific privacy notes describe the exact scope and limits.
Should I keep the original file?
Yes. Keep an untouched source file until any generated output has been validated.
What if my input is rejected?
Use the validation message to correct the base, encoding, width, timezone, byte alignment, or size. The runtime does not guess through invalid input.
Related tools
Continue with the same tool family.
Only index-ready verified records from the same Tool Family are shown here.
Related guides
Read the guidance connected to this tool.
Only reviewed, index-ready Guides that explicitly reference this Tool are included.
Beginner
Save File Formats
Game Boy Advance Raw Save Integrity & Troubleshooting Guide
A fail-closed Game Boy Advance Raw Save troubleshooting guide for distinguishing representation problems from unsupported semantics and for selecting read-only integrity checks before any repair attempt.
Beginner
Backups & Safety
Game Boy Advance Raw Save Backup & Identification Guide
A safety-first Game Boy Advance Raw Save guide for identifying the intended representation, preserving an untouched source copy, and choosing only a verified compatible Tool.