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Comparison · Analytics
shiny vs silx
A side-by-side editorial comparison of shiny and silx — release velocity, themes, recent moves, and the top alternatives to consider.
shiny vs silx: at a glance
What is shiny?
Shiny made reactive apps observable, then gave them a way to tear themselves down
Version 1.12.0 added OpenTelemetry support through the {otel} package, emitting spans for session start and end, reactive updates and individual reactive expressions, with collection depth set by an option or environment variable. The releases since have refined it - scoped collection controls in 1.12.1, cleaner stack traces in 1.13.0 - while 1.14.0 turned to lifecycle, adding session$destroy() on module proxies and a non-blocking startApp() for driving apps programmatically.
What is silx?
silx settles into maintenance a release after its PySide6 migration
silx is in the quiet phase after a generational release. 3.1.1 is a single fix to FitWidget loading a fit function from file. The release before it, 3.1.0, was the first real feature work since the migration - asinh axis scaling, twilight colormaps, and dark-theme icons - and 3.0.1 was similarly small. The 3.0.0 cut that reset the Qt binding and Python floor still defines what the line is doing.
shiny vs silx: editorial side-by-side
shiny
0.0ANALYTICS
Shiny made reactive apps observable, then gave them a way to tear themselves down
◆ Current state
Version 1.12.0 added OpenTelemetry support through the {otel} package, emitting spans for session start and end, reactive updates and individual reactive expressions, with collection depth set by an option or environment variable. The releases since have refined it - scoped collection controls in 1.12.1, cleaner stack traces in 1.13.0 - while 1.14.0 turned to lifecycle, adding session$destroy() on module proxies and a non-blocking startApp() for driving apps programmatically.
◆ Where it's heading
The framework is addressing the two things that make Shiny apps hard to run in production: you could not see inside the reactive graph, and you could not reliably dispose of parts of it. Tracing answers the first; scoped destruction of module session proxies answers the second. Both are aimed at long-lived, dynamically composed apps rather than at the single-file demo.
◆ Prediction
Expect the OpenTelemetry attribute names to settle once the deprecated spellings are dropped, and more of the reactive lifecycle to gain explicit teardown hooks now that session$destroy() has established the pattern. Editor integration is a likely area for follow-up after the Ark breakpoint support.
silx
5.0ANALYTICS
silx settles into maintenance a release after its PySide6 migration
◆ Current state
silx is in the quiet phase after a generational release. 3.1.1 is a single fix to FitWidget loading a fit function from file. The release before it, 3.1.0, was the first real feature work since the migration - asinh axis scaling, twilight colormaps, and dark-theme icons - and 3.0.1 was similarly small. The 3.0.0 cut that reset the Qt binding and Python floor still defines what the line is doing.
◆ Where it's heading
The cadence has slowed markedly since April, and the content has shifted from structural change to plotting and colormap refinement. That is the expected shape after a binding migration: downstream beamline code needs a stable target, so the project trades feature velocity for a quiet surface. The gap between 3.0.1 in May and 3.1.0 in August is the clearest signal of the deliberate slowdown.
◆ Prediction
Expect further point releases servicing the plotting and fitting widgets rather than another structural change, with feature work continuing to arrive in the 3.1.x minors rather than patches.
Alternatives to shiny and silx
Other Analytics 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 shiny or silx.
aniread
aniread stops asking you to know which tracker wrote the file
Rho
Rho's release machinery finally produced a stable build — and it shipped no new product.
Usermaven
Usermaven closed the loop: data comes in from anywhere, and now it goes back out.
OpenCTI
OpenCTI spends a release unblocking queues and hardening upserts
Grafana Mimir
Mimir's feed is a weekly Helm bot, with the 3.2 candidate the only real release in months
Recent activity from shiny and silx
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 3h agosilxFitWidget fix for loading a fit function from file
- 9d agosilx3.1.0: asinh axis scaling, twilight colormaps, dark-theme icons
- 1mo agoshinyModule scopes gain session$destroy() for reactive teardown
- 3mo agosilx3.0.1: silx view fails to disable HDF5 file locking
- 3mo agosilx3.0.0: PySide6 becomes the default Qt binding, Python 3.10 required ⚡
- 3mo agosilx3.0.0rc1: release candidate for the PySide6 migration
- 5mo agoshinyInteractive breakpoints under Ark; cleaner render stack traces
- 8mo agoshinyScoped OpenTelemetry collection controls
- 8mo agoshinyShiny adds OpenTelemetry tracing of the reactive graph ⚡
- 1y agoshinyRegression fixes for input bindings and label updates
- 1y agoshinyAuto-reload covers modules and support files
- 1y agosilx2.2.2: plot axes limits, OpenGL axes and libhdf5 1.14 fixes
Frequently asked questions
What is the difference between shiny and silx?
They serve adjacent needs but don't currently overlap on shipped themes. silx is currently shipping more aggressively (velocity 5.0 vs 0.0), with 0 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 shiny better than silx?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. silx is currently shipping more aggressively (velocity 5.0 vs 0.0), with 0 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Analytics products to evaluate alongside.
What are the best alternatives to shiny?
Top shiny alternatives in Analytics are ranked by recent ship velocity. Browse the "shiny alternatives" section above for the current picks, or visit /alternatives/r-shiny for the full list with editorial commentary on each.
What are the best alternatives to silx?
Top silx alternatives in Analytics are ranked by recent ship velocity. Browse the "silx alternatives" section above for the current picks, or visit /alternatives/silx for the full list with editorial commentary on each.