Stacklumen ships free web tools, an in-development client portal, a component library, and an AI co-builder — all under one umbrella, all designed to plug into the same workflow.
Free web tools, no signup.
Paste a URL. Get back a graded report on title, meta, canonical, Open Graph, JSON-LD, h1 structure, robots, sitemap, and llms.txt — everything that determines whether you show up in search and answer engines.
Paste a URL — see how it renders in Slack, iMessage, Twitter, LinkedIn, Discord, and Google search. Spot the broken og:image before the launch tweet.
Fill a form, copy the JSON. Organization, FAQ, Product, Article, BreadcrumbList — every schema answer engines actually read.
Paste a foreground and background hex. Get the contrast ratio, AA/AAA pass status for normal + large text, and a one-click suggested fix.
Fill a form, get production-ready robots.txt and llms.txt — with GPTBot / ClaudeBot / Perplexity / Google-Extended allow rules pre-wired the way we use them.
Paste an embed. Get its real KB size, minified KB size, and whether it fits inside Webflow's 50KB embed cap.
The product suite, in development.
Versioned file delivery, async approvals on staging URLs, milestones, Stripe-backed billing, signed proposals, and white-label workspaces. The portal product reserved for the full engagement.
Webflow embeds and React + TypeScript components, every one extracted from real Stacklumen client work. Live previews, KB-honest sizing, copy-out with usage notes.
A Webflow-native co-builder that knows the patterns we ship and the embeds in Baselumen. Generates production-grade interactions instead of generic snippets.
Working surfaces, live and in use today.
Chat with the team, browse sales materials, manage personal tasks, track business info. Thin touch-surface today; the full Hublumen experience tomorrow.
Notes-style task list with keyboard-first input. Synced across your devices.
Tell us about your project. Goal, audience, constraints, timeline, budget. We come back with a written scope and a real number.
We build Toolumen tools we'd use ourselves. If you'd use one we haven't shipped yet, tell us. The ones with the most demand jump the queue.
If you need the company behind the ecosystem — Webflow sites, custom applications, paid advertising, ongoing retainers — start with a brief.