Developer tools
Kitlumen is a focused catalog of browser-first web tools — SEO and AEO audits, Open Graph previews, schema generation, contrast checking and Webflow utilities. Nine tools, each doing one job well, most running entirely in the browser with nothing uploaded and nothing tracked.
9
Tools live
Browser-first
No upload, no telemetry
Private beta
Public changelog
Developers juggle a dozen scattered single-purpose sites for SEO audits, Open Graph previews, schema, contrast checks and performance testing. Most bury the actual tool under advertising, demand an upload, or quietly retain the data. Kitlumen needed to be a catalog rather than a junk drawer — somewhere a developer returns to rather than rediscovers through a bookmark.
A brand and marketing site fronting a nine-tool application, organised so each tool is one job and one screen. The SEO and AEO audit crawls any URL and grades performance, semantics, metadata and accessibility, then ranks fixes by the impact each actually has. Most tools run client-side, so nothing is uploaded and nothing is tracked. Free browsing with no card, a free account to save reports, and paid tiers for higher limits, saved history and API access.
Kitlumen is live in private beta with nine tools shipped and a public changelog. The positioning holds: a fast, private, single-purpose toolkit developers reach for without installing anything.
Brand identity, native Webflow marketing site, pricing and account surfaces, and the navigation system connecting the tool catalog to the wider Stacklumen suite.
Iain Feeney
