Instant quality scoring, adversarial diagnosis, and a hardened rewrite for any prompt you throw at it. Plus a branded PDF report you can share with your team.
Paste any prompt and get an overall score plus an 8-dimension rubric breakdown in under a second. Clarity, specificity, structure, role, examples, constraints, safety, and output format. All graded and explained.
Surfaces the exact weaknesses an LLM would exploit: vague constraints, missing edge cases, ambiguous output format.
Every audit returns a stronger version of your prompt you can copy and paste straight into ChatGPT, Claude, or your own app.
Add your own Anthropic or OpenAI API key to unlock a frontier-model audit and fully tailored rewrite. Your key never leaves your browser.
Export a polished report of every audit for your records, your team, or your client deliverables.
Single HTML file. No install, no account, no servers. Your prompts never touch our infrastructure.
From raw prompt to hardened, ready-to-use output in three clicks.
Drop any prompt into the main field, whether a short one-liner or a multi-page system message.
Get an instant rubric score, an adversarial diagnosis, and a rule-based hardened rewrite.
Copy the stronger prompt, or download a branded PDF report to share with your team.
Buy once, own it forever. No subscriptions, no usage caps, no gotchas. Launch promo pricing ends soon.
No. The core experience (scoring, diagnosis, and rule-based hardened rewrite) works with zero setup. An Anthropic or OpenAI key is only needed if you want to unlock Deep Analysis.
Nowhere we can see. PromptScrutiny runs entirely in your browser. If you enable Deep Analysis, your prompt is sent directly from your browser to Anthropic or OpenAI. Your API key is held in memory only and cleared the moment you close the tab.
A single HTML file. Double-click it to open in any modern browser: Chrome, Safari, Edge, or Firefox. No install, no account, no updates to chase.
None. Run as many audits as you want, forever. Deep Analysis calls are billed by your chosen provider at their standard rates, not by us.
Anyone shipping AI: product managers, developers, founders, researchers, marketers, and prompt hobbyists who want their prompts to actually hold up.
PC/Mac: Works instantly on any desktop. Just open the file in Chrome, Safari, or Edge. No installation required.
Mobile: HTML files can't always be opened directly from a phone's file system. If you run into this, upload the file to any free HTML hosting service and you'll have a working link in about 30 seconds. Open that link in your mobile browser and you're good to go.