Instant toggling
Press \ to switch X-Ray on, press it again to go back to a normal world. No pack reloads, no restarts.
Comparison
An xray texture pack makes stone see-through by rewriting block textures. It works, but you are stuck with the pack author's choices and you have to swap packs every time you want to play normally. Advanced XRay does the same job as a mod — toggled with one key, configured in game, and free.
| What matters | XRay texture pack | Advanced XRay mod |
|---|---|---|
| Turn it on and off | Swap resource packs and reload every time | One keypress (\) in game |
| Which blocks show | Fixed set baked into the pack | Any block you choose, add or remove live |
| Colours | Whatever the pack author picked | Full RGB picker per block |
| Finding ore at distance | Limited by render distance and pack tricks | Adjustable X-Ray radius |
| Normal play afterwards | World looks wrong until you swap back | World returns to normal instantly |
| Updates for new versions | Pack often breaks on version bumps | Builds for every supported 1.21.x release |
| Cost | Free, but quality varies wildly | Free and open source, GPL-3.0 |
Press \ to switch X-Ray on, press it again to go back to a normal world. No pack reloads, no restarts.
Give diamonds, ancient debris, spawners and chests their own colour so you can read a cave at a glance.
Add blocks from your hand, from what you're looking at, or by search — and share the JSON list with friends.
If you cannot install a mod loader at all — for example on a locked-down launcher — a resource pack is the only route left. Everywhere else, a client mod is less hassle and far easier to turn off. And on servers the rule is identical for both: use it only if the server allows it.
Source and issue tracker: AdvancedXRay on GitHub.