Head-to-head · ROM Hacking Tools
YY-CHR vs Echoes of Eolis
YY-CHR leads on 0 checks, Echoes of Eolis on 0, and 3 are even. Who comes out ahead on the 3 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreYY-CHR · 8.4/10
- Free planboth
YY-CHR scores higher on our rubric for rom hacking tools: 8.4 against 6.7 out of 10; our editors rank them #1 and #8.
On game scope, YY-CHR gives you Multiple games where Echoes of Eolis offers Specific game.
YY-CHR is the better fit for editing ROM graphics across multiple systems. Echoes of Eolis is the better fit for editing maps, graphics, and scripts for Faxanadu.
- YY-CHR fits best
Editing ROM graphics across multiple systems
- Echoes of Eolis fits best
Editing maps, graphics, and scripts for Faxanadu
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Side by side
| Feature | YY-CHR 8.4/10 Visit ↗ | Echoes of Eolis 6.7/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 8.4 | 6.7 |
| Ranking | #1 in ROM Hacking Tools | #8 in ROM Hacking Tools |
| Best for | Editing ROM graphics across multiple systems | Editing maps, graphics, and scripts for Faxanadu |
| Pricing model | Free | Free |
| Starting price | Free plan | Free plan |
| Free plan | ✓ | ✓ |
| Free trial | — | — |
| Deployment | Desktop | Desktop |
| Platforms | Windows | Windows, macOS, Linux |
| Built for | Solo | Solo |
| Features YY-CHR 2/3 · Echoes of Eolis 2/3 | ||
| ROM editing | ✓ | ✓ |
| Tile/sprite editing | ✓ | ✓ |
| Hex editor | Not checked yet | Not checked yet |
| Specs | ||
| Patch formats | Not checked yet | IPS |
| Supported platforms | Windows | Windows, macOS, Linux |
| Game scope | Multiple games | Specific game |
| Our review | ||
| Pros |
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| Cons |
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| Our verdict | YY-CHR is a Windows desktop dot editor for viewing and editing graphics contained in retro-game ROMs. Its audience is people working on graphics across multiple older console and computer formats, rather than users looking for a full ROM… Read the review → |
Echoes of Eolis is a desktop editor for hacking Faxanadu, the NES game, aimed at people who want to change the game’s maps, graphics, data, or scripts. Its scope extends beyond map editing: it covers tilemaps, screen transitions, doors,… Read the review → |
Strengths and trade-offs
YY-CHR — where it wins
- Supports tile formats for NES, Game Boy, SNES, PCE, GBA, and more
- Palette editor can load palettes from emulator state files
- Includes ROM Palette Editor and PRG Pattern Editor utilities
Where it doesn't
- Focused on ROM graphics rather than full ROM editing
- Palette display changes do not alter the graphics themselves
- The latest listed build is dated 2021-06-06
Echoes of Eolis — where it wins
- Edits maps, sprites, game data, cinematics, and scripts in one tool
- Exports patched ROMs, IPS patches, and XML project files
- Offers GUI and command-line tools on Windows, macOS, and Linux
Where it doesn't
- Focused on Faxanadu rather than a broad range of games
- Graphic exports for external editing are BMP files
- Precompiled builds are listed for Windows and macOS
- YY-CHR8.4/10 · Free plan
A focused Windows dot editor for viewing and editing graphics in retro-game ROMs.
Visit YY-CHRFull verdict → - Echoes of Eolis6.7/10 · Free plan
A focused desktop editor for changing Faxanadu maps, graphics, game data, and scripts.
Try Echoes of EolisFull verdict →
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- NUPS vs Echoes of Eolis
- HxD vs Echoes of Eolis
All ROM hacking tools comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update