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VERDICT

Should I use QuiltMC?

The mod-loader that cares. - quiltmc.org

Depends. A free, community-run Minecraft mod loader worth using if your mods or pack specifically target Quilt. Most players get a bigger, more stable mod ecosystem from Fabric or Forge instead.

Confidence

Medium. Based on 40+ public sources: Reddit threads, CVE records, GitHub activity, and QuiltMC's own site

Ratings

  • Value for money
  • Ease of useNo direct usability evidence found
  • Feature depth
  • Support quality
  • Security posture

Pricing

Free

Open source

ModelNot disclosed
Monthly feesNot disclosed
HardwareNot disclosed
Free tierYes

Best for

  • Minecraft players running Fabric-compatible modpacks
  • Mod devs wanting QSL and community governance
  • FOSS supporters who prefer donation-funded projects
  • Server hosts needing a lightweight loader

Not for

  • Non-Minecraft users — it is only a mod loader
  • Players needing Forge/NeoForge mods — incompatible
  • Anyone wanting paid support or SLAs
  • Modpack authors whose Fabric mods break on QFAPI

Gotchas - check before you buy

high

2023: five path-traversal CVEs (one CVSS 7.8) hit third-party mrpack installers

medium

Fabric compatibility is a reimplementation; edge-case bugs surface

medium

No paid support — help comes from volunteers and Discord

low

Some modders distrust the project due to its split from Fabric

Pros and cons

Pros

  • Free and open source under Apache 2.0
  • Runs most Fabric mods via Quilted Fabric API
  • Transparent, community-driven governance and finances
  • Active: 74 repos and formal RFC process
  • Published security notice and disclosure process

Cons

  • Loader bugs still break some Fabric mods
  • Community skepticism about why it exists vs Fabric
  • Volunteer-run; development depends on donations
  • Born from a divisive project schism

Sources & method

Analyzed 10/03/2026 - 10 sources - Open-source project with a published security policy; 2023's five CVEs affected third-party mrpack installers and launchers, not Quilt's loader core.

official x4review x2security x3news x1
  • CVE-2023-25307: mrpack-install path traversal, Third-party mrpack installer <= v0.16.2 vulnerable to directory traversal; CVSS 7.8 (high).
  • CVE-2023-25305: PolyMC launcher, PolyMC Launcher <= 1.4.3 vulnerable; disclosed via Quilt's installer vulnerability report.
  • CVE-2023-25306, One of five installer implementation vulnerabilities documented by QuiltMC in February 2023.

Key stats

  • Value for money: 5/5

    Rating

  • Free

    Starting price

  • 10

    Sources

  • Analyzed

  • Value for money: 5/5. Completely free; donation-funded via Open Collective
  • Ease of use. No direct usability evidence found
  • Feature depth: 4/5. QSL libraries plus Fabric API reimplementation
  • Support quality: 2/5. Community-only support; no paid options
  • Security posture: 3/5. Published policy, but 2023 installer CVEs
  • Free Price Apache 2.0 open source
  • 2021 Founded after the Fabric project schism
  • 74 GitHub repos public repositories
  • 1,049 GitHub issues total issues tracked

Pricing

Open source

Free

  • Full mod loader
  • Community support via GitHub/Discord
  • Funded by sponsorships and Open Collective

Security

Open-source project with a published security policy; 2023's five CVEs affected third-party mrpack installers and launchers, not Quilt's loader core.

  • CVE-2023-25307: mrpack-install path traversalThird-party mrpack installer <= v0.16.2 vulnerable to directory traversal; CVSS 7.8 (high).
  • CVE-2023-25305: PolyMC launcherPolyMC Launcher <= 1.4.3 vulnerable; disclosed via Quilt's installer vulnerability report.
  • CVE-2023-25306One of five installer implementation vulnerabilities documented by QuiltMC in February 2023.

What users say

Modders on Reddit are split: some love Quilt, while others openly question why it exists alongside Fabric.

“I love QuiltMC, it's the only place in Minecraft”
Reddit, r/feedthebeast
“My first thought was it is another mod loader wit”
Reddit, r/feedthebeast

Alternatives

Compare QuiltMC with each alternative.

  • Fabric

    The larger, faster-moving loader Quilt forked from

    QuiltMC vs Fabric

  • Forge

    Long-standing loader with the biggest mod library

  • NeoForge

    Popular Forge successor for modern Minecraft versions

Full analysis

Based on 40+ public sources: Reddit threads, CVE records, GitHub activity, and QuiltMC's own site

Free open-source Minecraft mod loader. Fine if your pack targets it; Fabric/Forge have bigger ecosystems.

Methodology

Based on 40+ public sources: Reddit threads, CVE records, GitHub activity, and QuiltMC's own site

Sources

  1. QuiltMC official sitequiltmc.org
    official
  2. Worth investing in Quilt? — Redditreddit.com
    review
  3. Quilt MC? Why exactly does it exist? — Redditreddit.com
    review
  4. PSA: A schism has formed in the Fabric project — Redditreddit.com
    news
  5. Five vulnerabilities found in mrpack installer implementationsquiltmc.org
    security
  6. CVE-2023-25307 — NVDnvd.nist.gov
    security
  7. The Quilt Project — Open Collectiveopencollective.com
    official
  8. QuiltMC GitHub organizationgithub.com
    official
  9. Quilt loader issue #470github.com
    security
  10. QuiltMC issue stats — Ecosyste.msissues.ecosyste.ms
    official

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