Tools you can run right now, on your own machine
Each one is a piece of the Playground’s own audit, handed over whole. Paste something, get an answer, keep the answer. They run in your browser — the same module the installed audit runs, loaded into the page — so there is no account to make, no AI key to supply, no credit to spend, and nothing you paste is sent anywhere.
Will an AI quote this page?
Paste a page and get a deterministic 0-100 for whether an AI answer can lift a paragraph of it intact and cite a deep link back — beside what the page says it is about, which of its claims carry evidence on the page itself, and the schema.org and llms.txt surface an answerer actually reads. Same engine the installed audit runs, no model asked and nothing fetched.
Check this page →Draft structure grade
Paste a draft before you publish it and have it graded against the four structural properties that outlast an algorithm change — one subject, headings a reader could have typed, links to your own related pages, metadata that matches the body — with the marking scheme itself handed back in plain text you can paste into whatever you write with.
Grade this draft →SaaS maturity check
Answer a short set of yes-or-no questions about your software business and get the stage it is really in, the specific things to fix before the next stage in the order to do them, and the rule that placed you there — a map, not a grade.
Show my stage →On-page SEO check
Paste a page and see the 12 on-page checks scored out of 100 — the same weighted checklist the installed SEO audit measures with, plus the keywords your own words say you are about.
Check this page →Static pre-scan
Paste a file and get the deterministic pre-scan the installed audit runs FIRST — the danger patterns (eval, HTML sinks, injection shapes, disabled TLS, embedded keys) and the structural ones (a mutating route with no auth check, a test that asserts source text instead of behavior, a guard that is never called).
Scan this code →Unbacked-claim check
Paste your homepage copy and get back each sentence that states a number, a superlative, a date or a claim about somebody else while carrying no source a reader could follow — the same detector the installed audit runs over every page of a site.
Check this copy →Brand voice profile
Choose how your brand should sound — the language and country it writes in, the rules it writes by, the words it never uses — and get a plain-text voice profile to paste above a request to any writing tool, with one sample sentence written to it. It is the same profile, rendered by the same code, as the Voice panel in the Playground.
Write my voice profile →Can an agent do business with you?
Paste a page and type its address, and see whether an AI agent that reads pages without running their scripts could book with you or contact you from it: a real booking or contact route or a script-only widget, what you offer in structured data, and a tel: link or a picture of a number. The same four questions the installed site audit asks, no model asked and nothing fetched.
Check this page →Accessibility barrier check
Paste a page and see four accessibility barriers its HTML alone can show: images with no alt text, form fields with no label, a page with no language set, and colour contrast where the styles are in the paste. Each one comes back flagged, clear, or UNGRADED when the paste cannot show it. Contrast is measured by the same engine the installed audit runs.
Check this page →Why these are free, and what they are not
- They are the real engines, not demos. Each tool is the same code the installed audit runs over your project, so the answer here and the answer in the app cannot disagree about the same page.
- Every tool says what it did not look at. A tool that finds nothing has made a narrow statement, not given you a clean bill of health, and each one prints its own limits beside its result.
- Nothing here is a certificate. No result from this page can be published as a verdict on an app; the audit records that can be are a different thing entirely, and they live in the certified directory.
- Nothing is stored. The run happens in your browser and ends when you close the tab. You can download your own result if you want to keep it.
Free QR code generator
Make a QR code for any web address, in your own colors and with your logo, and download it as SVG or PNG. It is drawn in your browser by the same code the Playground app uses, so it refuses the same unreadable color pairs and oversized logos. The code holds your address itself, with no redirect of ours in between, so it does not expire.
The one page here that keeps something
Confirm your business listings is the second half of the SEO check, and it works differently from everything above. It sends your page to our server, finds the review and directory listings it links to, and keeps that list so you can say which are yours. It still needs no account and makes no AI call, and it says on the page exactly what it keeps and for how long.