diff --git a/__tests__/previewProviders.spec.ts b/__tests__/previewProviders.spec.ts
index 05520b7..d79990d 100644
--- a/__tests__/previewProviders.spec.ts
+++ b/__tests__/previewProviders.spec.ts
@@ -39,6 +39,22 @@ describe('preview providers', () => {
 		expect(handler.enabled([makeFile({ mime: 'image/heic' })])).toBe(false)
 	})
 
+	it('opens a JPEG 2000 where the server renders one', async () => {
+		// Nothing decodes this in the browser, so the server having a
+		// provider for it is the whole of the support
+		const handler = await registerWithProviders(['/image\\/jp2/'])
+
+		expect(handler.enabled([makeFile({ mime: 'image/jp2' })])).toBe(true)
+	})
+
+	it('leaves a JPEG 2000 alone on a server that cannot render one', async () => {
+		// Which is every server until an admin enables the provider, so
+		// offering it would open a file that can only come up empty
+		const handler = await registerWithProviders(['/image\\/jpeg/'])
+
+		expect(handler.enabled([makeFile({ mime: 'image/jp2' })])).toBe(false)
+	})
+
 	it('falls back to the browser mimes when the capability is missing', async () => {
 		const handler = await registerWithProviders(undefined)
 
diff --git a/lib/models/images.ts b/lib/models/images.ts
index 1009f0e..716dcae 100644
--- a/lib/models/images.ts
+++ b/lib/models/images.ts
@@ -27,6 +27,10 @@ const enabledPreviewProviders = (getCapabilities() as PreviewCapabilities).core?
 const previewSupportedMimes = [
 	'image/heic',
 	'image/heif',
+	// No browser decodes JPEG 2000, and libgd cannot either, so this one
+	// depends entirely on the server rendering it. Filtered out below
+	// wherever no provider is enabled for it, as tiff already is.
+	'image/jp2',
 	'image/tiff',
 	'image/x-xbitmap',
 	'image/emf',