Pokémon SRM Editor

Overview

Pokémon SRM Editor is a free editor for Generation 1 saves, suited to players who want to change Pokémon or broader game data without leaving Red, Blue, or Yellow. Its broad editing scope and recovery tools make it a strong focused choice, provided you account for the desktop launch hurdle on macOS and OnionOS save-state behavior.

Key features

The editor opens raw 32 KiB .srm and .sav battery saves from emulators, flash carts, handhelds such as Miyoo Mini and OnionOS, Analogue Pocket, and dumped cartridges. Pokémon editing covers the party and all 12 PC boxes, with controls for species, level, experience, moves, DVs, stat experience, status, original trainer, nicknames, and calculated stats. That depth suits both individual corrections and broader roster changes; the trade-off is a firm focus on the three original games.

Editing also reaches trainer identity, money, coins, badges, items, Pokédex, daycare, Hall of Fame, event flags, and other saved data. Save version history includes diffs and one-click restore, while diagnostics flag issues such as checksum mismatches and invalid values without preventing a file from opening or being fixed. Together, those tools are useful for making substantial changes while retaining a way to review or reverse them.

Protection differs by version: the desktop app creates a timestamped .bak beside the original before overwriting it, while the web app keeps the original bytes downloadable. The browser editor runs through WebAssembly and never uploads the save, making it the better fit for users who prefer to keep files in-browser. Desktop builds can discover Gen 1 saves on Miyoo Mini and OnionOS SD cards, but on OnionOS an auto-loaded save state can shadow the battery save; the app warns and offers to rename the state.

Pricing

Free — free. The plan includes the web and desktop apps for Pokémon Red, Blue, and Yellow saves. There is no free trial because the software is free; there are no paid tiers or stated caps to weigh. It is a straightforward fit for anyone working with supported saves, but readers who need other games will need a different editor.

Platforms

Pokémon SRM Editor is available on web, macOS, Windows, and Linux. The macOS app is not notarized by Apple, so its first launch requires opening it from Finder’s right-click menu or removing quarantine with xattr. That extra step makes the web version more convenient for Mac users who do not want to handle the launch warning.

Who it's for

Choose it if you have a Red, Blue, or Yellow battery save and want extensive Pokémon and progression editing, useful diagnostics, and a route to compare or restore earlier versions. The browser version is especially suitable when keeping the save file local matters; desktop is the better fit for timestamped backups and SD-card discovery. It is not the right choice for saves from later Pokémon games.

Pros and cons

• Broad Gen 1 editing: Covers party and PC Pokémon plus trainer, inventory, progression, and other saved data, rather than only roster changes.
• Useful recovery options: Version diffs and one-click restore complement desktop backups and downloadable original bytes in the web app.
• Local browser processing: WebAssembly keeps the save from being uploaded.
• Focused game support: Red, Blue, and Yellow only, so it cannot serve as a general Pokémon save editor.
• Setup and save-state caveats: macOS requires an extra first-launch step, and OnionOS save states can obscure the battery save.

Alternatives

For a wider range of save-editing options, browse Game Save Editors.

• Palworld Save Pal is also free and has every feature without a paywall; choose it if you need its supported game instead.
• SaveEditor.top is free across web and desktop platforms, with files up to 50MB, no registration, and support limited to its supported formats.
• Fallout Shelter Save Editor is a free browser-based option with no accounts, ads, or telemetry and an MIT license.
• NMSE (No Man's Save Editor) is a free, ad-free desktop save editor for Linux, macOS, and Windows.
• Elden Ring SaveForge is a free Windows option.
• NHSE is a free desktop editor for Linux, macOS, and Windows; it requires an existing save and does not dump or import save data from the console.
• ACNH Save Editor is a free self-hosted alternative.
• Kingdom Save Editor is free and open source for Windows.

The project is MIT licensed, fan-made, and not affiliated with or endorsed by Nintendo, Game Freak, or The Pokémon Company.

Verdict

Pokémon SRM Editor is the clear fit for players editing Red, Blue, or Yellow saves who want broad control backed by history and backup safeguards. Its biggest limitation is equally clear: it is built for those three games, and some Mac and OnionOS users will need to address startup or save-state quirks.