Lead Capture & Popups
Lead capture tools convert existing website traffic into contacts using popups, slide-ins, banners, and gamified offers, triggered by behavior such as exit intent, scroll depth, or time on page.
This is the cheapest growth lever a site has, since it works on traffic already paid for. The craft is entirely in targeting and timing: an offer shown to the wrong visitor at the wrong moment is an annoyance and a bounce, while the same offer on exit intent for a returning reader is a subscriber. Platforms compete on trigger and segmentation depth, template quality, testing, and the integration list that gets a captured address into an email tool without a manual export. Buyers should read the pricing meter carefully, since most vendors charge on pageviews or impressions, the one number a growing site cannot control.
Claspo
A no-code widget builder with a genuinely free plan and eight gamified capture formats
Convertful
A deeply customizable on-site widget builder priced by widget impressions, not by traffic
Getsitecontrol
On-site widgets and email marketing in one tool, with unlimited contacts on every plan
Hello Bar
The original notification bar, grown into a simple popup and email-capture builder
Justuno
Ecommerce popups with segmentation, product recommendations, and anonymous visitor identification
OptiMonk
Popups, embedded forms, and AI page personalization priced by pageviews rather than by contacts
OptinMonster
The popup and onsite offer builder that made exit-intent a mainstream tactic
Poptin
Popups, forms, and email automation on a single script, with every feature on every plan
Popupsmart
No-code popup builder with behavioral targeting, priced by monthly pageviews
Privy
Popups, email, and SMS in one app built specifically for small Shopify stores
Sleeknote
Danish-built onsite popups and gamified campaigns priced by monthly sessions
Sumo
The free list-building popup tool that now ships under the name BDOW!
Wheelio
The original gamified spin-to-win popup for ecommerce email and SMS capture
Wisepops
Onsite campaigns, an in-page notification feed, and web push from one pageview-metered script
Profiles are listed in editorial order. Placement cannot be purchased; see our methodology.