ROMeo mascot ROMeo ♥
v2.6.0 — now with Patcher & Tools

One tool for
every ROM

Convert, patch, compress and verify your retro game collection. No install. No telemetry. No cloud. Just drop and convert.

↓ Download free ★ GitHub
20+
conversion paths
4
platforms
100%
offline

Everything your ROM library needs

Built around real preservation workflows — not a port of someone else's tool.

🔄
Smart Conversion

Magic byte detection picks the right conversion path automatically — no manual format selection.

🩹
ROM Patcher

Apply IPS, BPS, UPS, xdelta, PPF, and APS patches directly — no separate tool needed.

🗜️
ROM Compressor

ZIP and 7Z compression for cartridge games, plus M3U playlist generation for multi-disc sets.

CHD Verification

Post-conversion integrity check via chdman verify — know your CHD is good before you delete the source.

🎨
Themeable UI

Gaming Dashboard, Cyberpunk, Terminal, Minimal — or build your own theme with a JSON file.

Headless CLI

openrom-core for shell scripts, automation pipelines, and batch jobs on headless servers.

Every path, covered

20+ conversion routes across the major retro platforms.

INPUT OUTPUT PLATFORM TOOL
ISO CHDCSOECMRVZ PS1 / PS2 / PSP / GC / Wii chdman / maxcso / nodtool
BIN/CUE CHDECM PS1 / Sega CD / Saturn chdman / ecm
CHD ISOBIN/CUE All CD-based systems chdman
GDI CHD Dreamcast chdman
XISO Files Original Xbox extract-xiso
RVZ / WIA / WBFS / GCZ ISO GameCube / Wii nodtool
CSO / ZSO ISO PSP maxcso

Scriptable, pipeable, automatable

openrom-core ships alongside the GUI in every release.

openrom-core
# detect format and platform
$ openrom-core --detect game.iso
format: ISO platform: PS2 size: 4.3 GB

# convert to CHD
$ openrom-core --input game.iso --format CHD

# batch convert entire folder
$ openrom-core --folder /roms/ps2/ --format CHD --compression Max

# JSON output for scripting
$ openrom-core --json --detect game.iso
{"format":"ISO","platform":"PS2","size_bytes":4617089024}

Free. No account. No install.

Unzip and run. Every release includes the GUI and the headless CLI.

Also available on SourceForge as a mirror. Licensed under GPL v3 + Commons Clause.

What's coming

Built in public. Every feature tracked on GitHub.