Suggestions appear as you type. Use the up and down arrows to choose one and Enter to open it.

This page's audience our own tag's counts — open to see them
–Visits
–Page views
–Clicks to vendors
–Time on page
–Reading now
Clicks to vendors, by tool
  • –
Top countries
  • –
Devices
  • –

– · visits, page views and clicks counted by our own tag, which counts more than our checked analytics; every figure rounded down · how we count

Nesalizer

Free#17 of 26 in NES Emulators

Nesalizer: A command-line NES emulator for desktop users who want rewind and save states. Ranked #17 of 26 in NES Emulators by our editors (7.6/10); pricing: Open source; best for desktop users who prioritize rewind.

7.6/10Editor score
Visit Nesalizer
Nesalizer7.6 Visit Nesalizer

At a glance

  • Editor score
    7.6 / 10
  • Pricing
    Open source
  • Best for
    Desktop users who prioritize rewind
  • Paid from
    Free
  • Supported platforms
    Linux/POSIX; Windows (experimental port)
  • Facts checked
    20 Sep 2026
Nesalizer screenshot

  • Where it wins

    • Real-time rewind includes reversed audio.
    • Supports PAL, NTSC, and multiple iNES mappers.
    • Runs on Linux/POSIX and offers an experimental Windows port.

  • Where it doesn't

    • No graphical user interface is provided.
    • Save states remain in memory and are not saved to disk.
    • The Windows port is described as experimental.

Our verdict on Nesalizer

Nesalizer is an open-source NES emulator for desktop users who are comfortable launching ROMs from the command line. It accepts NES ROM files, uses SDL2 for output, and focuses on accurate emulation with real-time rewind. The project supports Linux/POSIX builds and includes a Windows port described as experimental, making it most suitable for users who prioritize rewind and a direct, command-line-driven setup over a graphical front end.

Its standout feature is real-time rewind with reversed audio, complemented by in-memory save and load states. PAL and NTSC support broadens its system coverage, while support for multiple iNES mappers helps it handle different NES cartridge configurations. Command-line ROM launching and SDL2-based output keep the software focused on core emulation rather than library management or interface features. For users who specifically want to move backward during play, this feature set gives Nesalizer a clear focus within the NES emulator category.

The trade-offs are equally clear. Nesalizer remains a work in progress, does not provide a graphical user interface, and does not persist save states to disk. Those constraints make it less suitable for users seeking a polished, menu-driven emulator or a long-term save workflow based on stored state files. Linux/POSIX users who value rewind, PAL/NTSC support, and command-line control should consider it; users who need a mature Windows experience, a GUI, or persistent on-disk save states should choose an alternative.

Your product? Our editors can test Nesalizer in depth and publish a review, labelled as paid · from $149/mo →

Nesalizer pricing

Plans Open sourceFree Free to use — no paid tier required for the core job.
See plans on github.com

Nesalizer fact sheet

Free planNot verified
Paid fromFree
Supported platformsLinux/POSIX; Windows (experimental port)
Save statesYes
RewindYes
NetplayNot verified
Shader supportNot verified
Cheat supportNot verified
DeploymentSelf-hosted
PlatformsWindows, Linux
SupportCommunity, Docs
Built forSolo, Small business (editorial estimate)
PricingOpen source
Websitegithub.com
Facts checked20 Sep 2026

Alternatives to Nesalizer

See all Nesalizer alternatives →

Used Nesalizer? Be the first to review it

The editor score above is our own research. What this page doesn't have yet is a reader's view — what you used Nesalizer for, what worked and what didn't. No stars are seeded and no review is paid for; an editor reads every one before it appears.

Write a reviewTwo minutes · verified accounts only · read by an editor before it appears

Reviews come only from verified accounts. Sign in or create an account first — your e-mail is never shown.

Your rating

0 characters · at least 80, up to 3,000

Posted from your verified account. Reviews appear after an editor reads them, usually within two working days.

Featured on iTechGuides

Featured on iTechGuides — Nesalizer 7.6/10

Nesalizer is listed in our NES Emulators directory. Add the badge to your site — it links back to this page.

<a href="https://www.itechguides.com/products/nesalizer/"><img src="https://www.itechguides.com/best/badge/nesalizer.svg" alt="Featured on iTechGuides" width="230" height="46"></a>

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Last updated · How we research and update