Cloud World Model
Simulate your architecture on AWS, GCP, Azure, OCI, or DigitalOcean and forecast cost, performance, and resilience — without provisioning a single real resource. Free, with an API.
Listed Jul 2, 2026
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Point any plain HTML form at it and submissions arrive in your email — with attachments, logs, exports, spam controls, and API access. The free plan is the real production setup, so you can test before paying.
Type a cron expression and see it translated into plain English, with the next scheduled runs. The fastest way to double-check that '0 4 * * 2' means what you think it means.
Paste a domain and get an email-deliverability health verdict: DNS records, SPF/DKIM/DMARC authentication, and blacklist signals — in the browser, no signup, no mailbox access, no test sends.