Your next users
are already talking.
We find them.
Paste your product link. OpenCorp maps your alternatives, ranks the Reddit threads where buyers describe the problem you solve, and queues the Hacker News discussions ready to join — each with a reason.
Tired of retyping the same info on every job application / signup form?
Core pain Filler solves — people describing the exact retype loop across sites.
Anyone else spending more time filling ATS forms than writing the resume?
High-engagement job-seeker thread. Natural place to show a privacy-first autofill.
Best form autofill extensions that don't phone home?
Buyers comparing tools on privacy — local-only storage is the differentiator.
Why do every SPA form break my browser autofill?
Technical audience hitting React/Vue controlled inputs — Filler's target surface.
How do you find early users without cold email spam?
Founders looking for warm conversations — same loop OpenCorp is built for.
Greenhouse / Lever applications are soul-crushing. Alternatives?
Massive thread on the exact form types Filler maps to real profile answers.
Do AI form fillers send my personal data to the cloud?
Privacy-minded users actively rejecting cloud autofill — perfect pitch surface.
Just shipped my first extension. Where do I talk to real users?
Meta-thread about finding buyers in communities — OpenCorp's own use case.
Looking for local-only password + form tools (no account required)
No-account, local-first buyers — aligns with Filler's architecture.
What do you use to stop retyping company history on every form?
Practitioners comparing profile-based vs AI-generated answers.
I shipped filler.live and didn't know who my alternatives were — or where people who needed it were already talking. So I built OpenCorp: paste a link, get the map.
Questions, answered
Get the map.
Paste your product link. See who's already looking for what you built.
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