DeSmuME DSV files contain raw game save data followed by emulator-specific metadata. SaveEditor recognizes the documented footer and can separate the raw region without interpreting the game payload. Rebuilding a DSV is intentionally template-based because the footer contains emulator metadata that should not be fabricated generically. Save states are not handled by this converter; it is for in-game battery-save data only.
Emulator & Retro Tools
DeSmuME Save Converter
Convert a validated DeSmuME DSV battery-save container to a raw SAV/SRM payload, or rebuild DSV using a correct same-game template footer.
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
.dsv.sav.srm
Platforms
DeSmuME / Nintendo DS
Supported versions / editions
DeSmuME DSV battery-save containers using the documented footer layout, plus raw save data of the exact corresponding length.
Input constraints
DSV input must contain the recognized DeSmuME footer text and terminal |-DESMUME SAVE-| cookie. DSV-to-raw removes that exact footer. Raw-to-DSV requires a valid template DSV whose raw data length exactly matches the selected raw save.
Known limitations
Phase 22 does not infer a DSV footer from the game name, resize raw saves, convert emulator save states, or claim that all .sav/.srm files belong to Nintendo DS. Raw-to-DSV intentionally requires a verified template from the same game/save-size context.
Output / result
A raw .sav/.srm payload from a validated DSV, or a new .dsv containing selected raw bytes followed by the unchanged footer from a validated template.
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
For DSV to raw, choose the DSV and export its raw payload. For raw to DSV, choose the raw save and a known-good DSV template for the same game and save size, then generate the new DSV.
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 footer cookie is missing, the file is rejected. If the raw payload length differs from the template DSV raw region, conversion stops rather than resizing or guessing.
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
Profiledesmume-save-converter
Method notes
Verified against the open dsv2sav footer/cookie layout, exact DSV-to-raw trimming, same-size template rebuild, malformed-footer rejection, and mismatched-length rejection.
Public references
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 DeSmuME 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
Backups & Safety
DeSmuME DSV Backup & Identification Guide
A safety-first DeSmuME DSV guide for identifying the intended representation, preserving an untouched source copy, and choosing only a verified compatible Tool.
Beginner
Save File Formats
DeSmuME DSV Integrity & Troubleshooting Guide
A fail-closed DeSmuME DSV troubleshooting guide for distinguishing representation problems from unsupported semantics and for selecting read-only integrity checks before any repair attempt.