Advanced Game Save Editor
Click to upload or drag and drop a save file
About the Advanced Save Editor
This is a professional-grade tool for gamers and developers who need to inspect, modify, and manage retro game save files like .srm, .sav, and .mcr. Because all processing happens securely in your browser, your files are never uploaded to a server, ensuring 100% privacy. This tool is more than a simple converter; it's a powerful hex editor.
It allows you to view and directly edit the raw binary data of your save files. Key features include a live-updating CRC32 checksum to maintain file integrity, a powerful search function to find specific values (like item counts or money), and a full undo/redo history for safe editing. You can also encode your save file to a Base64 string for easy sharing on forums.
How to Use This Editor
- Upload Your File: Click or drag your game save into the upload area to load it into the hex editor.
- Edit Values: Click on any hex or character value in the editor to change it. Your modifications will be highlighted in red.
- Search Data: Use the search bar to find text (e.g., your character's name) or specific hex values within the file.
- Check Integrity: The CRC32 checksum updates as you edit. Many games use this to verify a save file is not corrupt, so it's a critical value to monitor.
- Save Changes: Once you are done editing, click the "Download Modified File" button to save your changes.
- Share Safely: Use the "Encode to Base64" button to turn your file into a text string for easy and safe sharing online.
Tips for Save File Modding
- Always Backup First: Before making any edits, create a copy of your original save file. One wrong byte can corrupt a save permanently.
- Understand Checksums: If a game uses a checksum and you edit the file, the checksum will change. Some games require you to manually fix the checksum back to its original value for the save to load. This tool helps by showing you the live value.
- Small Changes, Big Impact: You don't need to understand everything. Finding the hex value for your money and changing it to `FF` is often enough to give you 255 of that currency.
- Endianness Matters: Some games store numbers in "big-endian" (e.g., `00 01`) or "little-endian" (e.g., `01 00`) format. If editing a value doesn't work one way, try reversing the byte order.
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