Quick answer: LeetCode isn’t down for everyone every time it feels slow or a submission fails. Reports of “LeetCode down” happen fairly often but tend to be short-lived, usually tied to server load during peak practice hours or a temporary backend hiccup. Check a live outage tracker first, then try a few quick fixes — a browser refresh, cache clear, or resubmission — before assuming the whole platform is broken.
TL;DR
- LeetCode has a history of short, recurring outage reports — spikes have shown up repeatedly across 2026 on independent trackers.
- Common symptoms: submissions failing with an internal error, pages loading slowly, or the site timing out entirely.
- Most common cause: server load, especially right before common interview seasons or during high-traffic hours.
- Quick fixes: hard refresh, clear cache, try a different browser or network, and resubmit after a short wait.
- Check an independent status tracker to confirm whether it’s a wider outage before troubleshooting your own device.
- Reported outages have generally cleared up within minutes to a few hours.
On this page
How to check if LeetCode is actually down
- Check an independent outage-tracking site to see current report volume over the last hour and 24 hours.
- Try loading a completely different website to confirm your own internet connection is working.
- Ask in coding communities (Reddit, Discord, or forums) to see if others are reporting the same issue right now.
- Note the time of day — LeetCode’s reported slowdowns have often clustered around peak evening hours and high-traffic periods.
Good to know: a few scattered complaints don’t necessarily mean a platform-wide outage. Independent trackers define “down” as report volume rising clearly above the typical baseline for that time of day — a handful of isolated reports is normal background noise for any large platform.
Common symptoms people report
| Symptom | What it usually means |
|---|---|
| Submission stuck or fails with internal error | Backend judge/execution service under heavy load or briefly unavailable. |
| Pages loading very slowly | Server-side congestion, often during peak practice hours. |
| Site won’t load at all | Either a wider outage, or a local network/DNS issue on your end. |
| Solved-problem count not updating | A known, narrower glitch reported separately from full outages. |
Likely causes, ranked
- Server/backend load — the most frequently cited cause in user reports, especially around common interview-prep hours.
- Temporary backend service issues — some users have speculated about specific backend causes on social platforms, though these aren’t officially confirmed by LeetCode and should be treated as informal chatter rather than fact.
- Your own network or browser — cache issues, DNS problems, or extensions can look identical to a platform outage from your side.
- Scheduled maintenance, typically brief and off-peak.
Fixes to try, in order
- Hard refresh the page (Ctrl+F5 or Cmd+Shift+R) to rule out a stale cached version.
- Clear your browser cache and cookies for the site, then reload.
- Try a different browser or incognito/private window to rule out an extension conflict.
- Switch networks (WiFi to mobile hotspot, or vice versa) to rule out a local connectivity issue.
- Wait a few minutes and resubmit if the problem is specifically with code submissions timing out.
- Check the independent status tracker again before assuming it’s still down — many reported spikes clear within the hour.
If you’re mid-interview prep when it happens
- Don’t panic-refresh repeatedly — this adds load and won’t speed up recovery.
- Switch to solving the problem on paper or in a local code editor while you wait, so your prep time isn’t wasted.
- If you’re on a timed mock interview through LeetCode, note the outage and reach out to support or your interview partner rather than assuming you’ve lost progress.
If browser cache and network issues are a recurring headache beyond just this one site, our broader guide on why apps and websites fail and how to fix them covers general device-level troubleshooting steps.
Frequently asked questions
Is LeetCode down right now for everyone, or just me?
Check a live outage tracker for current report volume. A genuine spike across many users points to a platform-wide issue; if you’re the only one affected, it’s more likely your browser, cache, or network.
Why does my submission fail with an internal error?
This is most often caused by the backend judge service being overloaded or briefly unavailable. Waiting a few minutes and resubmitting usually resolves it.
How often does LeetCode go down?
Independent trackers have logged recurring short-lived report spikes across 2026, suggesting occasional brief instability rather than frequent extended outages.
Is it true LeetCode’s outages are caused by a specific backend issue?
Users have speculated about specific backend causes on social platforms during past outages, but LeetCode has not officially confirmed these claims, so they should be treated as informal speculation rather than a documented root cause.
Will I lose my progress if LeetCode goes down mid-problem?
Code you’ve already submitted successfully should remain saved. Unsaved code you’re actively typing when the site fails may be lost, so it’s worth copying your work locally if you notice signs of instability.
Source: Outage report volume referenced in this guide is based on independent monitoring at StatusGator. Report counts change constantly — check the live tracker for the current figure rather than relying on any status mentioned here.
