Hacker ApprovedDepartments

libxcb

Shares rank 2 of 4 windowing libraries by recommenders

Recommended as an improvement over libX11 that keeps the X11 protocol asynchronous and works well for bindings. Critics note it cannot unify the underlying X11 protocol concepts.

Recommended as an improvement over libX11 that keeps the X11 protocol asynchronous and works well for bindings. Critics note it cannot unify the underlying X11 protocol concepts.

6 people gave an opinion

recommend it
6
criticize it
0
approval share
100%
Each figure is one person. RecommendsCriticizes

Recommended in 3 of 13 months

  1. November 2025: recommended
  2. December 2025: recommended
  3. January 2026: not recommended
  4. February 2026: not recommended
  5. March 2026: recommended
  6. April 2026: not recommended
  7. May 2026: not recommended
  8. June 2026: not recommended
  9. July 2026: not recommended
  10. August 2026: not recommended
  11. September 2026: not recommended
  12. October 2026: not recommended
  13. November 2026: not recommended (month in progress)

Why it doesn’t carry the badge

  • 6 people recommend itNeeds 10 or more, not met.
  • Nobody criticizes itNeeds 2 to 1 or better, met.
  • Recommended in 3 of 13 monthsNeeds 4 or more, not met.

The same three rules apply to every product, and the badge can’t be bought. How the badge works

What people say about it

The reasons people give, with the number of comments that give each one. Open a reason to read what they said.

Why people recommend it

Each mark is one comment

  • Keeps X11 protocol asynchronous

    “the newer XCB library is a lot more faithful in terms of preserving the asynchronous nature of the protocol”

    Comment from 23 Mar 2026 in “MAUI Is Coming to Linux”

    “proper latency hiding using XCB”

    Comment from 25 Dec 2025 in “Phoenix: A modern X server written from scratch in Zig”
  • Improves on libX11 problems

    “libxcb is definitely an improvement over libX11, but it can't magically make all the underlying X11 protocol concepts become unified.”

    Comment from 23 Mar 2026 in “MAUI Is Coming to Linux”

    “that was largely fixed with XCB”

    Comment from 29 Nov 2025 in “KDE Plasma 6.8 Will Go Wayland-Exclusive in Dropping X11 Session Support”

What people warn about

Each mark is one comment

  • Cannot unify X11 protocol concepts

    “libxcb is definitely an improvement over libX11, but it can't magically make all the underlying X11 protocol concepts become unified.”

    Comment from 23 Mar 2026 in “MAUI Is Coming to Linux”

Other windowing libraries people recommend

The three most recommended other windowing libraries, with the same counts for each, so you can compare like for like. The tick on each bar marks the 2 to 1 line the badge needs.

libxcb compared with 3 alternatives
ProductRecommendCriticizeApprovalMonthsOwnedBadge
GLFW9282%5——
libxcbThis page60100%3——
winit6843%5——
Xlib5363%4——
See all 4 windowing libraries, ranked

What people said

All 6 comments that mention it, newest first. Each links to the original comment.

“libxcb is definitely an improvement over libX11, but it can't magically make all the underlying X11 protocol concepts become unified.”

MixedComment from 23 Mar 2026 in “MAUI Is Coming to Linux”

“the newer XCB library is a lot more faithful in terms of preserving the asynchronous nature of the protocol”

RecommendsComment from 23 Mar 2026 in “MAUI Is Coming to Linux”

“it's actually somewhat convenient to use”

RecommendsComment from 22 Mar 2026 in “MAUI Is Coming to Linux”

“proper latency hiding using XCB”

MixedComment from 25 Dec 2025 in “Phoenix: A modern X server written from scratch in Zig”

“that was largely fixed with XCB”

RecommendsComment from 29 Nov 2025 in “KDE Plasma 6.8 Will Go Wayland-Exclusive in Dropping X11 Session Support”

“Personally I find libxcb is better for bindings.”

RecommendsComment from 9 Nov 2025 in “IRIX Introduction”

Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.