Lokalise experienced a critical incident on September 8, 2025 affecting Lokalise API and Lokalise App, lasting 9m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Sep 08, 2025, 10:08 AM UTC
We are currently investigating this issue.
- investigating Sep 08, 2025, 10:10 AM UTC
We are continuing to investigate this issue.
- monitoring Sep 08, 2025, 10:12 AM UTC
A fix has been implemented and we are monitoring the results.
- resolved Sep 08, 2025, 10:18 AM UTC
This incident has been resolved.
- postmortem Sep 26, 2025, 11:16 AM UTC
**What happened** On Sep 8, 2025 at 09:59 UTC, a change introduced in our system unexpectedly missed a Feature Toggle condition, which caused a spike in the number of requests to one of our internal services. This led to degraded performance and temporary unavailability of both the Lokalise App and API. Our monitoring and alerting systems immediately triggered the alerts, allowing us to quickly identify and restore the service. **Impact** The Lokalise App was unavailable for approximately **9 minutes**, and the API experienced downtime for about **6 minutes** within that window. No customer data was lost or corrupted. **What we are doing to prevent this in the future** We are implementing stricter safeguards around feature rollout validation, improving how our services handle spikes in traffic, and adding additional error handling to reduce the risk of cascading failures. We sincerely apologize for the disruption this caused. Thank you for your patience and continued trust in Lokalise. If you have any questions, feel free to contact us at [[email protected]](mailto:[email protected]).