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About Us
A clearer way to find the AI tool and the prompt you actually need.
Stackline is a directory and prompt library built for people. Every listing is reviewed, every ranking is earned by upvotes, not ad spend.
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Our mission
Help people spend less time searching and more time building.
Upvotes decide, not budgets
The Popular sort reflects real visitor votes. Featured placement is limited and clearly labeled, never disguised as an organic ranking.
Every listing gets a human look
No auto-scraped entries. A submission is checked against a working link and a real description before it's approved.
Stale listings get flagged
Tools change pricing or shut down. Anyone can report an outdated listing, keeping the directory usable instead of a graveyard of dead links.
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Our commitments
A few principles we don't bend on.
AI Tools Indexed
No pay-to-rank
Featured placement is limited, and clearly labeled it never replaces the upvote.
Featured items →
submissions reviewed
Real review, every time
A person checks each submission before it's published. No auto-approval queues.
Submit for review →
Happy Customers
Complete free tier
Free prompts and free-tier tool listings are never intentionally degraded to push an upgrade.
Frequently questions →
added this month
Kept current
Outdated listings get flagged and fixed, not left to rot for years like most directories.
Update your tools →
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Who it's for
Built for people who need an answer, not a scroll session.
Small teams
Vetting a new tool before a subscription decision, with real pricing visibility up front.
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Freelancers & solo builders
Finding a tool that fits a tight budget, fast without six browser tabs of comparison articles.
Content & marketing writers
Pulling a tested prompt instead of starting from a blank cursor every single time.
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What's here
Two things, done properly, instead of ten things done halfway.
A directory built for actually deciding, not just browsing
Every prompt's variables — tone, audience, topic — show up as editable fields before you copy. No more pasting a prompt and manually hunting for the placeholder text to swap out.
Reusable, tested prompts with editable variable fields fill in your specifics, copy, done.
Favorite a prompt or a tool and find it again later without re-searching. Small, but it's the difference between a directory you browse once and one you actually keep using.
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FAQs
A few common questions.
It’s a directory for discovering AI tools and a library of reusable prompts, both ranked by real community upvotes instead of paid placement.
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Where we're headed
Still early here's the honest roadmap.
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Start
Launch
Opens with the Tools Directory and Prompt Library, built around community.
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Next
Comparison pages
We Picked directly from the directory, so a shortlist becomes a decision faster.
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Later
Deeper prompt tooling
Prompt community-submitted variations, without losing the commitment.
Questions, press, or a tool to submit?
We read everything that comes in reply times are usually a few days, not weeks.
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Testimonial
Our customers love us
We submitted our tool expecting the usual black hole. Instead we got an actual review with feedback on our listing before it went live. Traffic from the directory now outperforms two paid channels we run.
I've listed my tool on six directories. Stackline is the only one where people mention in support tickets that they found me there specifically, not just referral traffic in analytics.
The featured placement actually converts. We tracked signups from the Stackline shelf against our other placements and it's not close — the audience here is genuinely evaluating tools, not just browsing.
As a one-person team, most directories feel like shouting into a void. The upvote system here means early users who genuinely like the tool can actually move the needle on visibility.
The prompt library's variable fields sound like a small thing until you use them. I stopped manually editing placeholder text before every copy — that alone saved me a few minutes on every single use.
We use the directory to onboard new writers onto AI tools without recommending anything ourselves. The pricing badges alone save us a recurring conversation about which tools actually have a usable free tier.