Every sale starts with a lead, and a landing page is where a click becomes a lead. This is the top-of-funnel capture layer of your revenue stack: standalone tools built to turn traffic into email subscribers. This is a comparison of the four worth buying, judged on opt-in conversion and speed to publish. Here’s what to buy.
Landing-page coverage usually gets buried inside broad “funnel builder” or “website builder” posts. That mixes jobs. A lead-capture page has one purpose: get the email address. So I judge these on conversion features (forms, popups, A/B testing), how fast you can publish, and whether you need a separate email tool. Everything else is decoration.
The bottom line (buy / skip)
Best free option: Kit (formerly ConvertKit). Unlimited landing pages and forms free up to 10,000 subscribers — and it’s a full email platform, so capture and nurture live in one tool. Unbeatable for a solopreneur starting out.
Best cheapest paid: Carrd. $19/year gets you a one-page opt-in with a real form and custom domain. Nothing is cheaper.
Best pure conversion optimizer: Unbounce — AI Smart Traffic routing and unlimited conversions, if you drive real paid traffic.
Best dedicated page builder with A/B testing: Leadpages — but the full plan now starts at $99/mo.
Kit
Captures and nurtures in one free tool
What makes a lead-capture tool convert
Four things matter for turning traffic into subscribers:
- Forms and popups. Inline forms, modals, slide-ins, exit-intent — the more capture surfaces, the more leads.
- Opt-in conversion features. A/B testing, dynamic text, AI variant routing. Small lifts compound.
- Speed to publish. How fast from idea to live page? Momentum matters for a solo operator.
- Do you need a separate ESP? Some capture the lead but can’t email it. That’s a hidden second bill.
The tools at a glance
| Tool | Free plan | Cheapest paid | Native email/list? | Standout |
|---|---|---|---|---|
| Kit | Yes (10k subs, unlimited pages/forms) | Creator $33/mo (1k subs) | Yes — full ESP | Capture wired to automations, free |
| Carrd | Yes (3 sites, no forms) | Pro Standard $19/year | No — needs ESP | Cheapest real opt-in page |
| Unbounce | No (14-day trial) | Starter $22/mo annual | No — needs ESP | AI Smart Traffic; unlimited conversions |
| Leadpages | No (7-day trial) | Grow $79/mo annual | No — needs ESP | A/B testing + dynamic text |
Prices verified against each vendor’s pricing page on 2026-09-26.
Kit: capture and nurture in one free tool
Here’s the number that matters: 10,000 subscribers, free. Kit’s free Newsletter plan gives you unlimited landing pages and forms, unlimited email broadcasts, and tagging/segmentation — up to 10,000 subscribers, at $0. That’s not a crippled trial; it’s a real business tool.
- Free: unlimited landing pages and forms, broadcasts, tagging, up to 10,000 subscribers.
- Creator — $33/mo monthly ($390/yr) at 1,000 subscribers: unlimited visual automations and sequences, SMS, A/B subject-line testing.
The reason Kit tops this list: it’s the only one that captures and nurtures. Every other tool here grabs the lead and then needs a separate email platform to do anything with it — a second subscription. Kit wires your opt-in forms straight into automations at no cost. Tightest capture-to-nurture loop of the four, and free to start.
What we liked
- Free up to 10,000 subscribers
- Unlimited landing pages and forms
- Built-in email — no second tool
- Capture wired straight into automations
What could be better
- Lighter design control
- No standalone CRO features
- A/B testing needs the paid Creator tier
Who it’s for: any solopreneur building an email list who wants capture and email in one tool. Who it’s not for: people who need heavy design control or standalone CRO features.
Carrd: the cheapest real opt-in page
Carrd is dead simple and absurdly cheap. It builds one-page sites, and with the right tier, real opt-in forms.
- Free: up to 3 sites — but no custom domain and no forms.
- Pro Lite — $9/year: removes branding — but still no forms or custom domain.
- Pro Standard — $19/year: this is the one you want — adds forms, custom domains, and embeds.
Important: for actual lead capture you need Pro Standard at $19/year, not the $9 Pro Lite (which has no forms). At $19 for a whole year, it’s the cheapest way to put a real opt-in page online. Carrd has no native email, so you connect an ESP — it integrates with Mailchimp, Kit, ActiveCampaign, and others. For a single high-converting opt-in page on a shoestring, nothing beats it.
Who it’s for: budget solopreneurs who want one clean opt-in page fast. Who it’s not for: anyone needing multiple pages, popups, or built-in email.
Unbounce: the conversion optimizer
Unbounce is for people who spend on traffic and want to squeeze every conversion out of it. Its edge is AI-driven optimization.
- Starter — $29/mo monthly, $22/mo annual: 5 pages, up to 500 traffic volume, 1 user.
- Build — $99/mo monthly, $74/mo annual: unlimited pages, up to 20k traffic, popups, sticky bars, multi-step forms, AI copywriting.
- Optimize — $249/mo ($187 annual): AI Smart Traffic routes each visitor to the variant most likely to convert.
Note the 2026 changes: the old “Launch” plan is now “Build,” and — a genuine win — conversions are now unlimited on all plans (no more conversion caps). Pricing is by monthly traffic volume. Unbounce isn’t an email tool; it captures and pushes to your ESP. It’s overkill for someone just starting a list, but if you’re running paid ads, Smart Traffic can pay for itself.
Who it’s for: marketers driving paid traffic who need serious CRO. Who it’s not for: early-stage solopreneurs (too much tool, too much cost).
Leadpages: the dedicated page builder
Leadpages is a focused landing-page and lead-gen builder with a big 2026 restructure — the old $37 “Standard” plan is gone.
- HTML Pub Starter — $10/mo ($8 annual): a lighter publishing product, 5 pages, 1 domain.
- Grow — $99/mo ($79 annual): unlimited pages, manual A/B testing, dynamic text replacement, lead enrichment.
- Optimize — $199/mo ($159 annual): Smart Traffic AI routing, heatmaps.
Every plan has unlimited traffic with no visitor caps — nice. A/B testing starts at the Grow tier ($99/mo), and the AI Smart Traffic routing is at Optimize. Like Unbounce, it captures leads and hands them to your ESP; it’s not an email tool itself. It also shows up in my ClickFunnels alternatives comparison, but there it’s framed as a funnel builder — here the job is pure list-growth pages.
Who it’s for: people who want a dedicated page builder with testing and don’t mind $99/mo. Who it’s not for: budget starters (Kit or Carrd win) or those needing native email.
So which lead-capture tool should you buy?
- Building an email list from scratch → Kit. Free up to 10k subs, and it emails them too. My pick for most solopreneurs.
- Cheapest single opt-in page → Carrd Pro Standard. $19/year, done.
- Running paid ads, need CRO → Unbounce. Smart Traffic earns its cost on real traffic.
- Want a dedicated page builder with testing → Leadpages Grow.
Then close the loop. Capture is step one — the lead only pays off when you nurture it. Send new subscribers into an email platform built to sell, and hand sales-ready leads to your CRM. A list you capture but never email is just a bigger spreadsheet. For where a landing page fits alongside everything else a one-person business runs, see the best tools for solopreneurs.
FAQ
What is the best free landing page builder for lead capture?
Kit. Its free Newsletter plan gives you unlimited landing pages and forms plus a full email platform up to 10,000 subscribers, so you capture and nurture in one tool at $0.
What is the cheapest way to put a real opt-in page online?
Carrd Pro Standard at $19/year. Note you need Pro Standard, not the $9 Pro Lite — Pro Lite has no forms. Carrd has no native email, so you connect an ESP like Mailchimp, Kit, or ActiveCampaign.
Do I need a separate email tool with these builders?
With Kit, no — it’s a full ESP. With Carrd, Unbounce, and Leadpages, yes: they capture the lead and push it to your email platform, which is a second subscription to budget for.
Is Unbounce worth it for a beginner?
Usually not. Unbounce is built for people spending on paid traffic who need serious conversion optimization. If you’re just starting a list, Kit or Carrd give you more for far less.
