Universal Save Editor

Web · Self-hosted

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Freedom report

One barScore 5.4

Free tierNo free tier on record
Open codeNo open-source code on record
Runs widely1 of 6 device platforms
DocumentedPlans, terms and facts published

Universal Save Editor is ranked #14 of 25 in game save editors on Freedom251. It runs on Self-hosted, Web.

Compared on game save editors

Free plan: Yes
Supported platforms: Web browser; self-hosted static site
Supported games: Pokémon Diamond/Pearl; LEGO Batman: Legacy of the Dark Knight; community game-specific editors
Inventory editing: Yes
Progression editing: Yes
Character stats editing: Yes
Automatic backup: Yes

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The record

Purpose: Universal Save Editor identifies game save files from known signatures and patterns so users can edit them.
Browser processing: Save files are read and processed in the browser, and the maker says they are never uploaded.
Schema driven: The editor uses JSON schemas to identify games and describe save fields, and supporting a new game can be done by adding a schema.
Editing safeguards: Field edits are validated before export, and the editor offers undo and redo history.
Export and backup: Export recalculates declared checksums, re-encrypts files when specified by a schema, and provides a backup of the original.
Community editors: The repository bundles 20 standalone game-specific community editors that also run client-side.
Notable limit: The LEGO Batman schema currently supports the Studs Collected field; collectible unlock flags are not supported by the engine.
Security: The maker says community schemas are validated before use and binary reads and writes are bounds-checked.
Support: The maker directs users with game requests or schema questions to contact dislopik on Discord or contribute a schema.
Local processing: Save files are read and processed in the browser, and the site says they are never uploaded.
Supported count: The home page says 25 games are supported.
Editing workflow: The editor fingerprints saves, matches a schema, validates edits, patches a copy, recalculates declared checksums, and exports the modified file.
Backups: The maker says a “Download Backup Original” button is always available.
Uncertain matches: When matching confidence is too low or two schemas tie, the editor shows an unknown-format screen with diagnostics instead of choosing a match.

Where it ranks on Freedom251

Best Game Save Editors in 2026#14 of 25

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Sources

universal.dislopik.com· checked 4 Oct 2026
github.com/DisLoPik/universal-save-editor· checked 4 Oct 2026