What Is Save Editor Online?

Save Editor Online (saveeditonline.com) is a free browser-based tool for editing game save files. You upload a save file, the site detects its format automatically, opens a matching editor, and lets you change values like gold, items, stats, variables, and text. It supports RPG Maker, Ren'Py, Unity, Unreal Engine 4/5, Godot, HTML games, and a large library of additional save formats. It is the right tool when you want to tweak a save without installing desktop software — and the wrong tool if you need to edit a format it doesn't recognize, or if you can't risk uploading a save you haven't backed up.

How the editing flow works

The process is three steps, and the site handles format detection for you:

1. Upload your save file — click Upload file and choose the file you want to edit. Alternatively, use Paste code if your data is safe to paste as normal text (for example a Base64 string or a save code).
2. Let the tool detect the format — the site identifies the format and opens the best available editor for it.
3. Make changes and download — edit the values you want, then click Download to save the updated file.

The site's own guidance is explicit: back up your save before editing.

Upload file vs. Paste code

These two entry points are not interchangeable, and choosing wrong is a common source of errors.

If your data looks like raw binary or garbled text, use Upload file instead of pasting. Pasted text is uploaded as savegame.txt.

Supported save formats

The site lists a broad set of engine-specific, compressed, serialized, JSON, and text-based formats. Documented examples include:

• .save
• .sav (including Wolf RPG Editor and Unreal Engine games)
• .rmmzsave
• .rpgsave
• .sqlite
• .sol
• .gz
• .es3
• .dat
• .lsd (RPG Maker 2000/2003)
• .rsv (Rags Player 2.4)
• .* (Java, HTML games, packed files)

Because detection is automatic, you don't need to know which editor applies before uploading — but knowing your file's origin (which engine made it) helps you predict whether it will be recognized.

What you can edit

Once the correct editor opens, the site describes editing values such as:

• Gold / currency
• Items
• Stats
• Variables
• Text

The exact fields available depend on the detected format and the editor the site opens for it.

Common problems and what they mean

The site surfaces specific error messages, and they point to different fixes:

• "You have to upload one save file." — No file was selected.
• "File is too large. {0} MB maximum file size." — The file exceeds the per-file limit.
• "Upload failed: the request exceeded the server upload size limit." — The upload is larger than the server accepts.
• "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 it to Downloads or Documents and retry.
• "Paste code is not supported in this browser." — Switch to Upload file.
• "Paste your Base64 or save code first." — The paste field was empty.
• "Please wait. The site is being updated." — Updates usually take less than one minute; try again in a minute.

Practical notes before you start

• Back up first. The site says so directly, and it matters: an edit you regret is only recoverable if you kept the original file.
• Match the method to the data. Binary or garbled data goes through Upload file; clean text or Base64 goes through Paste code.
• Keep files in an accessible folder. Several upload errors are fixed simply by moving the file out of a restricted location into Downloads or Documents.
• Expect format-dependent results. The editor that opens — and therefore the values you can change — depends on what the tool detects.