Not yet verified
This page has not been re-verified against primary sources since the October 2026 audit. Check claims against the linked specs and platform docs before relying on them.
Testing & Debugging Tools
The pages in this section are guides, not interactive tools: SocialDocs does not host a validator or signature tester. This page points you at the external tools that exist today, with their status as checked in October 2026.
Inspect remote objects
| Tool | What it does | Status |
|---|---|---|
| BrowserPub | "A browser for exploring ActivityPub and the fediverse": fetch and view actors, objects and collections | Live |
| Fedify CLI | fedify lookup fetches an object by URL or an actor by handle; fedify webfinger and fedify nodeinfo query discovery endpoints | Active (Fedify 2.4.x) |
| webfinger.net | WebFinger lookup in the browser | Live |
| JSON-LD Playground | Expand, compact and inspect JSON-LD documents | Live |
Install the Fedify CLI with npm install -g @fedify/cli (other install methods are listed on fedify.dev/cli).
Test your server against others
| Tool | What it does | Status |
|---|---|---|
fedify inbox | Spins up an ephemeral inbox server with a one-time actor on a short-lived public HTTPS address, so you can follow your server and watch what it sends | Active |
fedify tunnel | Exposes a local HTTP server to the public internet over a secure tunnel, so remote servers can reach your dev machine | Active |
| ActivityPub Academy | A public Mastodon instance you can federate with | Runs Mastodon 4.1.18 (October 2026) — several major versions behind current Mastodon, so its behaviour is not current |
| A local Mastodon, GoToSocial or other server | The most reliable way to test interop against current releases | — |
Test suites
There is no maintained, official conformance suite. See Test Suites for what exists (activitypub-testsuite is active; FediTest and the go-fed suite are stale).
Guides in this section
- Validating activities — checking activities and objects by hand and in code
- Inspecting actors — fetching and reading actor documents
- Testing WebFinger — checking discovery
- Working with JSON-LD — contexts and expansion
- Debugging tips — common federation failures
- Compliance checklist — what to verify before you federate
:::note Help wanted Know a tool that belongs here? Open an issue or PR with a link and its current status. :::