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Comparison · DevOps

httpuv vs Liquidsoap

A side-by-side editorial comparison of httpuv and Liquidsoap — release velocity, themes, recent moves, and the top alternatives to consider.

httpuv vs Liquidsoap: at a glance

FeaturehttpuvLiquidsoap
SectorDevOpsDevOps
Velocity score0.06.3
Sparks · 30d01
Top themesweb-server, websockets, shiny, maintenanceaudio-streaming, subtitles, icecast, ocaml
Last editorial update5d ago3h ago
WebsiteVisit →Visit →

What is httpuv?

httpuv ships almost nothing, which is what you want from the web server under Shiny

httpuv is the C++ HTTP and WebSocket server that Shiny runs on. Across this window it added exactly one user-facing function - runStaticServer() for serving a directory - and spent every other release on race conditions, compiler and linker changes, CRAN check warnings, and mime type table updates.

Read the full httpuv trajectory →

What is Liquidsoap?

Liquidsoap opens its 2.5 line with subtitles as a first-class content type and a streaming server of its own

The 2.5.x rolling release carries the accumulated 2.5.0 changelog, and it is the largest body of work Liquidsoap has staged in over a year. Subtitles become a dedicated content type alongside audio and video, with native SRT decoding, FFmpeg subtitle encode and decode, bitmap passthrough, callbacks, transformations and dynamic insertion. An Icecast-compatible server ships as icecast.server, with source authentication, mount points, relay and per-listener encoding. Underneath, the source composition model was rewritten: switch, fallback, rotate and random drop their parallel list parameters for per-source methods, and switching now fades by default.

Read the full Liquidsoap trajectory →

httpuv vs Liquidsoap: editorial side-by-side

H
httpuv
DEVOPS
0.0

httpuv ships almost nothing, which is what you want from the web server under Shiny

◆ Current state

httpuv is the C++ HTTP and WebSocket server that Shiny runs on. Across this window it added exactly one user-facing function - runStaticServer() for serving a directory - and spent every other release on race conditions, compiler and linker changes, CRAN check warnings, and mime type table updates.

◆ Where it's heading

There is no direction here in the usual sense, and that is the honest read: the package is a stable foundation whose releases are triggered by the toolchain moving, by R-devel warnings, or by a threading bug surfacing under load. The one recurring theme with substance is connection reliability - WebSocket keepalive pings, race conditions in the I/O thread - which is what actually breaks Shiny apps in production.

◆ Prediction

Expect continued small releases tracking Rtools, R-devel and mime data, with any substantive change most likely coming from a threading or WebSocket issue reported by Shiny users rather than from planned work.

L6.3

Liquidsoap opens its 2.5 line with subtitles as a first-class content type and a streaming server of its own

◆ Current state

The 2.5.x rolling release carries the accumulated 2.5.0 changelog, and it is the largest body of work Liquidsoap has staged in over a year. Subtitles become a dedicated content type alongside audio and video, with native SRT decoding, FFmpeg subtitle encode and decode, bitmap passthrough, callbacks, transformations and dynamic insertion. An Icecast-compatible server ships as icecast.server, with source authentication, mount points, relay and per-listener encoding. Underneath, the source composition model was rewritten: switch, fallback, rotate and random drop their parallel list parameters for per-source methods, and switching now fades by default.

◆ Where it's heading

Liquidsoap is expanding on two axes at once. It is broadening what a stream can carry - subtitles are a third content modality in a system that has understood two - and it is moving up the stack from a source that feeds Icecast into something that can be the Icecast. The language work points the same way: a source(_) type for unknown content, callback release semantics, and effect-scoped clocks are the kind of changes made when scripts are getting large enough that lifetime and typing errors cost real production time.

◆ Prediction

The 2.5.0 final should follow the rolling branch within a release cycle, and the migration guide already shipped for the composition parameter changes suggests the breaking surface is considered settled. Watch whether subtitle support reaches the harbor and Icecast server paths, which the current notes do not say.

Alternatives to httpuv and Liquidsoap

Other DevOps products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either httpuv or Liquidsoap.

See all httpuv alternatives → · See all Liquidsoap alternatives →

Recent activity from httpuv and Liquidsoap

Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.

  1. 16h agoLiquidsoapSubtitles become a content type and Liquidsoap ships its own Icecast server
  2. 9d agoLiquidsoapLiquidsoap Rolling Release 2.4.x
  3. 2mo agoLiquidsoapQueue removal commands and O(1) clock propagation in Liquidsoap 2.4.5
  4. 4mo agoLiquidsoapLiquidsoap 2.4.4 supersedes 2.4.3 days after release
  5. 4mo agoLiquidsoapRaw string literals arrive in Liquidsoap 2.4.3
  6. 7mo agoLiquidsoapLiquidsoap 2.4.1 opens the stabilization phase
  7. 1y agohttpuvServes .wasm as application/wasm; mime table refreshed
  8. 2y agohttpuvrunStaticServer() survives a failed browser launch
  9. 2y agohttpuvRtools build file update and macOS zlib linking fix
  10. 2y agohttpuvFixes an R CMD check warning on error format strings
  11. 2y agohttpuvrunStaticServer() serves a directory of static files
  12. 3y agohttpuvFixes a race condition introduced in 1.6.10

Frequently asked questions

What is the difference between httpuv and Liquidsoap?

They serve adjacent needs but don't currently overlap on shipped themes. Liquidsoap is currently shipping more aggressively (velocity 6.3 vs 0.0), with 1 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.

Is httpuv better than Liquidsoap?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Liquidsoap is currently shipping more aggressively (velocity 6.3 vs 0.0), with 1 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other DevOps products to evaluate alongside.

What are the best alternatives to httpuv?

Top httpuv alternatives in DevOps are ranked by recent ship velocity. Browse the "httpuv alternatives" section above for the current picks, or visit /alternatives/httpuv for the full list with editorial commentary on each.

What are the best alternatives to Liquidsoap?

Top Liquidsoap alternatives in DevOps are ranked by recent ship velocity. Browse the "Liquidsoap alternatives" section above for the current picks, or visit /alternatives/liquidsoap for the full list with editorial commentary on each.