Minecraft Java Edition · 1.7.2 ↔ 26.3

Move any resource pack to any version.

packconv upgrades and downgrades resource packs across twelve years of format changes: renamed textures, sliced sprite sheets, new model formats and pack.mcmeta rules. It runs entirely in your browser. Your pack is never uploaded.

Drop a .zip or .rar pack here or click to choose a file

From To

Note: conversion does not guarantee that every part of a resource pack will be fully compatible with the selected Minecraft version. Some textures, models or other resources may need further adjustment.

Both directions

Every format change is an upgrade/downgrade pair, so a 26.3 pack can go back to 1.8.9 and an old PvP pack can go forward.

Private by design

The converter is Rust compiled to WebAssembly and runs in a worker thread on your machine. Nothing leaves the page.

ZIP and RAR

Archives are unpacked in memory, including RAR 1.3, 4 and 5, with no external tools or C dependencies.

Honest reports

Anything that cannot be carried over exactly, like version-bound shaders, is listed as a warning instead of silently dropped.

Mods pass through

Only vanilla assets are touched. Mod namespaces, OptiFine and MCPatcher folders are kept byte for byte.

Also a server

The same core powers an HTTP microservice (axum) with job limits, queueing and timeouts for small hosts.