- Level
- confirmed
- Worst impact
- Partial outage
- Components
- New app builder, Self Hosted On-Premise
- Down Index
- 34of 100
What to do
Check whether you use Retool New app builder, Self Hosted On-Premise. Check your stack
Paste a package.json, lockfile, Terraform or a list of domains at down.guide/stack to see every provider you depend on.Confirm your retries, queues and scheduled jobs caught up after the 5h 54m it lasted.
Anything that failed between 2026-08-20 17:26 UTC and 2026-08-20 23:20 UTC may need a replay.Subscribe to Retool's feed to hear about the next one first. RSS feed
https://down.guide/feed?provider=retool works in Slack (/feed subscribe), Discord feed bots and any RSS reader.
Updates from Retool 5
- investigating
Retool's app builder may fail to install and connect to a sandbox due to downstream dependency issues. This affects both Cloud and Self-Hosted Retool instances.
provider
- identified
This issue no longer affects the React App Builder on Retool Cloud. We have identified the issue for self-hosted, and are working on releasing images with a fix
provider
- identified
This issue affects Retool version 4.0.0+ (stable and edge), specifically for 1) newly-created React apps, 2) new publishes of existing React apps, and 3) cold starts of sandboxes when editing existing React apps. Existing published apps that do not get published after August 19th are unaffected. Self-hosted customers can update to 4.43.0-edge to get an immediate fix. A patch to our stable release channel is coming soon.
provider
- monitoring
Images with the fix are out: 4.0.12-stable 4.43.0-edge Our minimum release age for React app builder dependencies is 5 days, so this incident will self-resolve for any self-hosted deployments that don't upgrade on August 24th, by 7am PST. All currently affected self-hosted versions: stable: 4.0.0 - 4.0.11 edge: 4.1, 4.9, 4.16, 4.19, 4.23, 4.27, 4.31, 4.35, 4.40
provider
- resolved
This incident is resolved. Images with the fix are out: 4.0.12-stable 4.43.0-edge Our minimum release age for React app builder dependencies is 5 days, so this incident will self-resolve for any self-hosted deployments that don't upgrade on August 24th, by 7am PST. All currently affected self-hosted versions: stable: 4.0.0 - 4.0.11 edge: 4.1, 4.9, 4.16, 4.19, 4.23, 4.27, 4.31, 4.35, 4.40
provider
Reports count in aggregate; nothing about you is shown.
Corrections
None so far.
Something wrong on this page? Report an error or send us a note. Every fix is listed here.
Questions about DWN-8413a60c4c
Is Retool still down?
No, this incident was resolved 2026-08-20 23:20 UTC. For Retool's live state, see https://down.guide/retool.
How long did it last?
5h 54m, from 2026-08-20 17:26 UTC to 2026-08-20 23:20 UTC, by the times Retool posted.
What was affected?
Retool named New app builder, Self Hosted On-Premise.
What caused it?
Retool hasn't published a root cause. If it does, it shows here.
Where does this come from?
Retool's official status page, https://status.retool.com, quoted verbatim. down.guide's own probes, reports and social counts are labeled as ours.