Runs entirely in your browser
Free, browser-based save file editors.
Open your save file, edit the values through a labeled editor, download the result. Every tool parses and re-encodes the file on your machine; it is never sent anywhere.
- 100% Client-Side
- No Account Needed
- Free, No Catch
Supported Editors
Pick the tool that matches your game's engine or save format.
.rpgsave / .rmmzsave
LiveRPG Maker Save Editor
Edit party stats, gold, switches, and variables for RPG Maker MV and MZ.
.json
Coming SoonGeneric JSON Save Editor
A catch-all visual editor for any game that stores its save as readable JSON.
.dat / registry
Coming SoonUnity Save Editor
Inspect and edit Unity PlayerPrefs and binary serialized save data.
base64 / JSON
Coming SoonIdle / Incremental Save-Code Editor
Decode and edit the copy-paste save codes used by idle and incremental games.
.save
Coming SoonRen'Py Save Editor
Edit Ren'Py visual novel save files, including saves with a signature check.
How It Works
Three steps. Nothing leaves your device at any point.
Select your tool
Pick the editor that matches your game's engine or save format above.
Edit in your browser
Open your save file and change values through a labeled editor. No raw hex or JSON required.
Download and replace
Save the edited file and put it back in your game's save folder. Nothing was ever sent anywhere else.
Frequently Asked Questions
Everything about safety, privacy, and what's coming next.
Yes. There's no signup, no paywall, and no premium tier for any editor on this site. It's supported by search traffic to each tool page, not by charging users.
Every tool reads your file with the browser's File API, decodes and edits it in memory using JavaScript running on your machine, then hands you the result back as a downloadable Blob. There is no upload endpoint on this site — a tool page has nothing to send your file to even if it wanted to.
Always keep a backup of the original file before editing — an out-of-range value can still cause an in-game error even though the file itself re-encodes correctly. Ban risk is essentially specific to games with server-side save validation or anti-cheat; a single-player, locally-saved game has no server to flag the change.
The tool queue above is the current roadmap, roughly in build order. Use the Contact page to request a specific game or engine — dedicated pages for individual popular games are planned once the engine-level tools are live.
Maybe — .sav is a generic extension a lot of different engines reuse for completely different underlying formats, so the extension alone doesn't tell you which tool applies. Check the tool list above for your specific game or engine; if none of them fit yet, the Contact page is the way to ask for it.
Ready to patch your save?
Pick a tool above; most take under a minute once your file is loaded.