Companies / Grammarly / incidents
Grammarly: Increased latency across Grammarly product offerings
Grammarly reported a critical degradation causing intermittent or slow features, login trouble, and “Service unavailable” errors from 2026-03-09 16:52 UTC to 2026-03-09 20:07 UTC, lasting 3 h 14 min. A fix implemented at 19:15 UTC restored login and use of Grammarly and Superhuman; the incident was resolved.
Machine-written from the archived incident (Sol). Check the timeline before relying on it.
Affected components: Grammarly for MacWriting SuggestionsGrammarly for AndroidPlagiarism DetectionGrammarly for Microsoft OfficeGrammarly EditorLoginGrammarly for WindowsGenerative AI assistanceGrammarly for iPadGrammarly for Microsoft Word on MacGrammarly for iPhoneGrammarly's Browser Extension
Timeline of updates
- investigating
We are currently investigating an issue causing Grammarly's product offerings and features to work intermittently or slower than usual. We will update you as soon as we have more information. Thank you for your patience!
- investigating
We're continuing to investigate this issue. Some Grammarly users may have trouble logging in or see "Service unavailable" when trying to use Grammarly.
- investigating
We're still looking into this issue. We'll provide an update as soon as we can.
- monitoring
We've implemented a fix, so you should be able to log in and use Grammarly and Superhuman. We're monitoring the results of this fix and will provide further updates.
- resolved
This issue has been resolved.
Rewindex changes for this incident
- Critical incident: Increased latency across Grammarly product offerings 2026-03-09 16:52 UTC
Impact, status and times are the vendor’s own, as last archived. View on stspg.io (opens in new tab). Grammarly profile · Recent Grammarly incidents · Markdown · JSON