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Feather ClientMinecraft modpack for 1.21.1

Ultra-light Fabric performance pack for PvP & multiplayer—boosts FPS, slashes lag, and keeps your game running as smooth as a fox 🦊

client onlynewest supported release 1.21.1OptimizationCombatLightweightMultiplayer
Latest version
1.21.1
Loader
Fabric
Licence
LicenseRef-All-Rights-Reserved
Downloads
40.9k
Updated
10 mo ago
Available on
Modrinth

Screenshots

Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.

Minecraft versions

Every version Feather Client declares support for, newest first, with the Java runtime that version needs.

Other modpacks
MinecraftThroughJavaEvidenceReleased
1.21.1Fabric21+declared8 Aug 2024
1.19.2Fabric17+declared5 Aug 2022

Download

From Feather Client’s own host. Nothing is re-hosted here.

Most recently published release

1.21.1release3 Jan 2026

Feather Client for 1.21.1 1.21.1.mrpack · 19 KB · for 1.21.1 · Fabric

Download this release
ad076e543531…
Older versions2
  • 1.123 May 20251.19.221 KB11.4k downloads3b69025bd96d…Get
  • 1.019 Jul 20241.19.221 KB5.2k downloads52a2886dfd36…Get

Frequently asked

Does Feather Client work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Feather Client declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Which Minecraft versions does Feather Client support?

Everything the author has declared, from 1.19.2 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Feather Client on the client or the server?

The client only. There is nothing to install on the server side. That is the author's declared design, not a guarantee for every server: one running anti-cheat or missing a counterpart mod can still object.

Which platform or loader does Feather Client support?

Fabric. A build for one platform or loader will not necessarily load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for Feather Client?

Among the supported Minecraft releases above, the highest recorded requirement is Java 21 or newer. Use the requirement for the exact Minecraft version you run; previews and snapshots may differ.

What licence is Feather Client under?

LicenseRef-All-Rights-Reserved, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.

How do I install Feather Client?

Use a launcher that imports packs, such as Prism Launcher, the Modrinth App or the CurseForge app, and open the pack file with it. The launcher installs the right loader and mods for you; installing a pack's mods by hand is the error-prone way.

Where do I download Feather Client safely?

Start with the author's page on Modrinth, which is where the data here is synced from. MCReference does not host or repackage files. When available, recorded download links go to the source for that release; verify the publisher, filename and any available checksum before running it.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

Details from Modrinth, where the author last updated it on 3 Jan 2026. We do not host files or republish descriptions. Available download links point to the author’s own release.

Is this information wrong or missing something? .