Developer Tools & CI/CDjsfiddle.net

Is JSFiddle Down Right Now?

Live global uptime status, multi-region edge latency, official incident reports, and automated monitoring for JSFiddle.

J

JSFiddle

jsfiddle.net

Online playground for testing and showcasing HTML, CSS and JavaScript code snippets.

Operational
Edge Latency
36 ms

Primary edge roundtrip

24h Global Uptime
99.98%

Edge consensus

Vantage Points
7 Regions

NA, EU, APAC Edge DOs

Last Checked
9:45:35 PM

Edge consensus mesh

Telemetry verified by SteadyStack Autonomous Edge Network
Official Status
Automated Developer Alerting

Stop checking manually.

When JSFiddle goes down or suffers silent latency degradation, you shouldn't be refreshing status pages, searching social feeds, or waiting for angry user reports. Get alerted the exact second JSFiddle fails.

Monitor JSFiddle in 1 Click

Free 50 monitors • 3m standard (1m for first 10) • 2-of-3 Edge Quorum • No credit card required

10-Second Edge Intervals

Continuous HTTP, WebSocket & DNS checks from 15+ global edge nodes.

4-of-7 Quorum Verification

Multi-region consensus verification prevents 3 AM wakeups from transient routing blips.

Multi-Channel Escalation

Instant alerts to Slack, Discord, Telegram, SMS, PagerDuty & Webhooks.

steadystack.config.ts
Auto-provisioned Monitor
import { defineMonitor } from "@steadystack/core";

export default defineMonitor({
  name: "JSFiddle API & Health",
  target: "https://jsfiddle.net",
  interval: "10s",
  consensus: { requiredRegions: 3 },
  alerts: ["slack-dev-ops", "pagerduty-p1", "discord-incidents"],
});

Global Edge Reachability & Regional Latency

Synthetic probe response times tested from SteadyStack worldwide vantage points.

🇺🇸
US-East (N. Virginia)
us-east
28 ms
UP
🇺🇸
US-West (Oregon)
us-west
52 ms
UP
🇩🇪
EU-Central (Frankfurt)
eu-central
98 ms
UP
🇯🇵
AP-Tokyo (Tokyo)
ap-northeast
156 ms
UP
🇧🇷
SA-East (São Paulo)
sa-east
170 ms
UP
🇿🇦
AF-South (Cape Town)
af-south
222 ms
UP

Downtime Impact Analysis

What happens when JSFiddle degrades

Fiddle snippets fail to save, external resources CDN fails to inject, result iframe stays blank.

Common HTTP Error Codes Observed

500 Internal Server Error502 Bad GatewaySave Failed

Critical Monitored Subsystems

Components tracked on jsfiddle.net

Fiddle Runner Iframe
Synthetic Active
External Resource Proxy
Synthetic Active
Snippet Database
Synthetic Active
Babel Transpiler
Synthetic Active

Engineering Resilience Guide: Surviving JSFiddle Outages

Defensive software architecture patterns to prevent third-party cascade failures.

Immediate Tactical Steps

  • 1Check JSFiddle web server response.
  • 2Copy code to local scratchpad or alternative sandbox.
  • 3Verify external resource URLs are served over HTTPS.
  • 4Clear browser cache and reload.

Recommended Resiliency Patterns

Circuit Breaker Pattern: Automatically trip and fallback to cache when JSFiddle error rates exceed 15% in a 30s rolling window.

Idempotent Background Retries: Push failed API events into an asynchronous dead-letter queue with exponential backoff and jitter.

Multi-Region Edge Synthetic Consensus: Rely on SteadyStack to alert your team before end-users notice degradation.

Frequently Asked Questions: JSFiddle Availability & Monitoring

Everything you need to know about tracking JSFiddle outages and SLA reliability.

Our real-time global edge probes continuously test JSFiddle (jsfiddle.net) across multiple worldwide locations. You can check the live status badge and latency meter at the top of this page. If you are seeing errors while the global status is operational, it may be due to localized ISP routing, local DNS caching, or account-specific rate limiting.
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