Your Personal Hook Library: Every Winning Opening Line, Organized for You

Every hook from every post you've ever captured, pulled automatically into one searchable, filterable swipe file.

The problem

The opening line is the whole game: before anyone reads your second sentence, they've decided whether to keep scrolling based on the first. Almost nobody has a real system for tracking which openers actually work, because building one by hand means copy-pasting into a doc every time you spot something good, a habit that dies within a week. Even a real swipe file becomes a graveyard eventually, you can't sort it by format or filter it to openers that actually drove results, even though the raw material is already sitting inside PostSnag, captured with every post you've scanned, just never surfaced as its own thing.

What we're building

An automatic hook library that builds itself from data you're already capturing, no new habit required:

• Every opening line, pulled out automatically, no copy-pasting, filterable by format the moment it's in.

• Sort by overperformance score, so you see instantly which hooks actually earned their keep.

• Search across every page you've scanned, your own history and every competitor, in one place.

How it works for you

After scanning a handful of profiles, you open the hook library and it's already populated with hundreds of opening lines, no setup required. Filter to video posts at 3x overperformance or higher and get a short, ranked list of openers proven in that format.

What you get

• A swipe file that builds itself passively, with nothing to remember to log.

• Instant filtering by format and overperformance score, so you study only what's proven.

• Every page you've ever scanned in one searchable place, by keyword or theme.

For example

You're staring down a Tuesday posting deadline with nothing to say. You filter the hook library to your own top-performing photo posts and notice four of your five best openers start with a number, "3 things," "5 signs," and write today's post the same way. It becomes your best-performing post of the month.

What it unlocks

The hook library is the raw material for everything PostSnag does with generation and analysis: it's what a rewrite tool pulls from, what the "why this worked" breakdown points back to, and because every hook carries its overperformance score, sorting by what's actually proven is built in from day one.

Who it's for

Anyone who writes their own posts on a regular cadence: creators, social managers, and copywriters who already think in swipe files and want theirs to finally build itself.