01 The challenge
Developers juggle a dozen scattered sites for SEO audits, Open Graph previews, schema, accessibility, performance, and security checks. Stacklumen wanted one focused catalog — not a junk drawer — where each tool does one job well, in the browser.
02 The solution
Stacklumen built Kitlumen: thirteen browser-first tools spanning SEO & AEO, accessibility, performance, security, Webflow and image conversion — most running entirely client-side, with no uploads and no telemetry.
03 The results
Kitlumen is live at kitlumen.com and updated regularly — a fast, private, single-purpose toolkit developers reach for without installing anything. Starter is $4.99 and Premium $19.99, each opening on a three-day trial.
✦ Services rendered
Full product design and build: thirteen browser-first developer tools across SEO/AEO, accessibility, performance, security, Webflow and image conversion, plus the marketing site and billing.
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