WebR Validator

Studies

Data CSV: label, estimate, SE Or click "Load from shared bus" to pull studies from another workspace app.

Method τ² estimator (must match browser) Test method

WebR source WebR module URL Default is a pinned WebR release (v0.5.4) to avoid silent behavioural drift; for offline use, download from github.com/r-wasm/webr/releases and point this at a self-hosted path. Adapter won't fire until you click "Run in WebR".

Receipt signing (HMAC-SHA256) Signing key (never stored) The key stays in memory for this tab only and is never written to localStorage. Use the same key when you verify. If left blank, the downloaded receipt is labelled LEGACY and is not cryptographically verifiable.

I understand WebR will download ~30 MB from the URL above on first use.

Paste-back path (no WebR) R console output The parser looks for estimate, se, ci.lb, ci.ub, tau^2, I^2, and QE.

Verify an external receipt Paste a TruthCert JSON receipt Uses the Signing key field above. A peer can verify your receipt by entering the same key you signed with.

Browser vs R (Idle)

R script

Enter studies to generate the metafor script.

WebR log

Not started. Click "Run in WebR" to begin.

WebR is a WASM build of R + its package ecosystem, released under the same licence as R itself. This app does not send data anywhere; WebR downloads R runtime + metafor from its hosting URL on first init only.