How to Edit a Save File with Save Editor Online

Save Editor Online is a free browser-based tool that edits game save files for RPG Maker, Ren'Py, Unity, Unreal Engine 4/5, Godot, HTML games, and many other formats. To use it: upload your save file (or paste a Base64/save code), let the tool auto-detect the format, change values like gold, items, stats, variables, or text, then download the updated file. Back up your original save first — the site itself recommends it.

Before you start

• A save file you can locate. Find it in the game's save folder, your user profile, or wherever the game stores progress.
• A backup copy. Duplicate the file somewhere safe before editing. If an edit breaks the save, the backup is your only way back.
• The right input method. Use Upload file for anything that looks like raw binary or garbled text. Use Paste code only for data that is safe to paste as normal text, such as Base64 strings or save codes.

Step-by-step: editing a save

1. Upload the file or paste the code

Click Upload file and choose your save, or paste a Base64/save code into the paste field. Pasted text is uploaded as savegame.txt.

The site gives examples of pasteable data:

• %7B%22kind%22%3A%22save%22%2C%22data%22
• 1uy+UfyS+cNvDN5/3Lh2h1TqpmMIMZgEAAAAA=
• BBF02F165FCD2FC1793F0FBE7E25B74FAB7FF0F

If your data looks like raw binary or garbled text — the site's example is TÝnÓ0.../0ÖV...tpk1öiç-ñ... — use Upload file instead of pasting.

2. Let the tool detect the format

After upload, the tool detects the save format automatically and opens the best available editor for it. You don't pick the format yourself. Supported files include .save, .sav, .rmmzsave, .rpgsave, .sqlite, .sol, .gz, .es3, .dat, plus many engine-specific, compressed, serialized, JSON, and text-based formats.

The site also lists specific format families such as:

3. Edit the values you want

Once the editor opens, change the fields you care about — gold, items, stats, variables, text, and more. The exact fields depend on the game and format, so what you can edit varies by save.

4. Download the updated file

Click Download to save the modified file. The site shows a "Preparing download, please wait..." message while it processes.

5. Replace the original save

Put the downloaded file back where the game expects it, keeping your backup separate until you've confirmed the game loads correctly.

Common problems and fixes

"You have to upload one save file." No file was selected. Choose a file before submitting.

"File is too large" / upload size limit exceeded. The file exceeds the server's maximum upload size. The site reports the limit in MB when this happens.

"Upload failed (400). The browser may not have sent the selected file correctly." Move the file to a trusted local folder such as Downloads or Documents, then try again.

"The browser could not read this file from its current folder." Same fix: move the file to Downloads or Documents and retry.

"Paste code is not supported in this browser." Switch to Upload file instead of pasting.

"Please wait. The site is being updated." Updates usually take less than a minute. Try again in a minute.

"Upload failed. The file may be invalid, the connection may have been interrupted, or the server-side upload size limit may have been exceeded." Check the file is a valid save, confirm your connection, and verify the size against the limit.

Quick answers

Is it free? The site describes itself as a free save editor. No pricing details are listed on the page.

Do I need an account? The page shows Login and Become a patron options, but editing does not require describing an account in the steps — upload, edit, and download are the documented flow.

What if my format isn't listed? The listed formats are examples, not an exhaustive list. The tool claims support for "a large library of additional formats," so try uploading and see whether it detects your file.

Can I undo an edit? Only via your own backup. Download the edited file only after you've kept the original safe.