Top 10 Free Lead Capture Tools in 2026 (Compared)

Which free lead capture tool is best for each use case?

Each row names the tool that wins that use case, plus the closest alternative. splitforms wins only where its plan data does.

At-a-glance: the 10 tools compared

Free tier limits as of September 2026. Skim this table, then jump to whichever tool fits your situation. The tools are listed alphabetically; there is no overall ranking.

Want the deeper backend comparison? Read the best free form backend services 2026 roundup for the engineering-side picks.

How we compared these tools

Most "best of" lists rank tools by name recognition. We compared them on what determines whether you actually capture and convert leads (alphabetical order, no overall score):

1. Free tier headroom. A 50-submission cap is useless if one Reddit post buries your form. We weighted real-volume capacity heavily.
2. Webhook support. Webhooks are how leads flow to a CRM, Slack, or Zapier. Check which plan includes them; several tools here, splitforms included, keep them on paid plans.
3. Spam protection. A bare honeypot is the minimum. Content scoring, IP checks and rate limits help more.
4. Framework fit. Code-first sites (Next.js, Astro, Svelte) need embed-friendly tools. WordPress sites can use plugin-first tools.
5. Cost at scale. What does it cost when you 10x? Some "free" tools become $40-100/month once you grow.
6. Lock-in. Can you walk away with your data? Hosted-only tools (Typeform, Tally) keep your form on their platform. Embed-based tools (splitforms) keep the markup in your repo.

If you only care about one criterion, pick free-tier headroom. Running out mid-campaign isn't recoverable.

Brevo (formerly Sendinblue) — best free combined email + SMS

Free tier: unlimited contacts, 300 emails/day. Cheapest paid: $9/month Starter (5,000 emails). Webhooks on cheapest paid plan: yes.

Brevo rebranded from Sendinblue in 2023 and quietly built one of the more generous free tiers in this category. Unlimited contacts (vs Mailchimp's 500) is the headline; the 300-emails-per-day cap is the catch. For lead capture purposes — where you're collecting addresses, not blasting newsletters — that limit rarely bites.

What's good: unlimited contact storage on free is rare. Built-in SMS sending (paid per credit, but available). Transactional email API included. Has webhooks on its Starter plan. EU-based hosting, which matters for some GDPR setups. Form builder is functional, embed HTML is portable.

What's missing: the 300-email/day cap stops bulk newsletter sends. The form designer is utilitarian — embeddable but not pretty. Deliverability is fine but not best-in-class; you'll see more spam-folder hits than with ConvertKit. UI feels enterprise-ish and slow.

Verdict: excellent if you need email + SMS in one tool, or if you have a large contact list but low send volume. For pure form capture on a code-first site, a form backend is leaner.

ConvertKit / Kit — best free creator newsletter capture

Free tier: up to 10,000 subscribers, unlimited landing pages and forms. Cheapest paid: $15/month Creator. Webhooks on cheapest paid plan: no.

ConvertKit (rebranded to Kit in 2024) raised its free tier to 10,000 subscribers, which is genuinely generous. The product is built for creators — authors, podcasters, course sellers — and the forms reflect that: clean, embeddable, optimized for newsletter sign-ups rather than contact forms.

What's good: 10,000 subs free is the highest in this list. Landing pages are free and unlimited. The deliverability is consistently strong (creator audiences tend not to mark as spam). Tag-based segmentation is simpler than Mailchimp's audience model. Honest pricing — no surprises at scale.

What's missing: no automation sequences on the free tier — that's the upsell. No webhooks on its cheapest paid plan. The form designer is limited; if you want a custom-styled inline form, you're fighting their CSS. Not a fit for B2B lead capture — it's a creator-first tool.

Verdict: if you're building an audience as a writer or creator, this is the most generous free tier. Pair it with splitforms for any non-newsletter form (contact, demo request, support).

Google Forms — best free internal / quick survey tool

Free tier: unlimited forms and responses. Cheapest paid: free (Workspace $6/user adds branding/domain). Webhooks on cheapest paid plan: no.

Google Forms is what you reach for when you need a quick poll, internal survey, or one-off RSVP. It's free forever, responses land in a Google Sheet automatically, and anyone with a Google account is already authenticated. The form UI is dated but workmanlike.

What's good: truly unlimited free. Native Sheets integration is instant. File uploads work. Quiz mode is solid for assessments. Quizzes can auto-grade. Section logic is basic but available. No spam protection needed because submissions tie to Google accounts (if you require sign-in).

What's missing: the URL is hideous (forms.gle/xyz), the branding screams "Google," and there's no real way to embed without an iframe. No webhooks, no native CRM hooks, no automated spam filtering. Notification emails are clunky. Custom styling is essentially nonexistent. Not suitable for any customer-facing lead capture where brand matters.

Verdict: perfect for internal surveys and one-time RSVPs. Wrong tool for a contact form on your homepage. If you want the "everything to Google Sheets" behavior on a real form, read store form submissions in Google Sheets — splitforms does this without the Google Forms aesthetic.

HubSpot Free — best if you need forms plus a real CRM

Free tier: unlimited contacts and form submissions, basic CRM, email marketing. Cheapest paid: $15/month Starter (per seat). Webhooks on cheapest paid plan: no (workflows are paid).

HubSpot Free is the heavyweight here. You get a hosted form builder, a contact database that doesn't cap at 500, basic deal pipelines, and meeting scheduling. For a small B2B SaaS doing outbound, it's genuinely useful without paying. The form builder outputs an embed script or a hosted page.

What's good: the CRM layer. If "lead capture" really means "build a sales pipeline," HubSpot does this where splitforms doesn't. No contact cap on free — Mailchimp caps at 500. Includes email templates, basic automation triggers, and call logging.

What's missing: webhooks and most automation are on paid plans, and the embed script adds page weight. Pricing scales steeply — Starter is $15/seat per month, and you'll be nudged toward Marketing Hub Pro ($800+ per month) for landing pages or workflows.

Verdict: the right pick when you need a CRM. If you prefer your own markup or care about page weight, capture with a form backend such as splitforms and pipe leads in via webhook.

Mailchimp — best free newsletter signup forms

Free tier: 500 contacts, 1,000 emails per month, 1 audience. Cheapest paid: $13 per month Essentials. Webhooks on cheapest paid plan: no.

Mailchimp's embedded signup forms are still the default for newsletter capture on small sites — partly inertia, partly because they work. You get a hosted form URL, embeddable HTML, and a popup variant. Submissions land in your audience and trigger any welcome automations you've built.

What's good: the audience tools, segmentation, and welcome automations are mature. Templates are professional. Free tier is sufficient for a personal site or new newsletter. The embedded form HTML is portable — you don't need their hosted page.

What's missing: 500-contact cap on free hits fast if you actually grow. Pricing scales aggressively — by 5,000 contacts you're paying $75 per month. The form HTML they generate is generic and hard to style. No webhooks on free. Anti-spam is basic; expect bot signups unless you add reCAPTCHA yourself.

Verdict: still the default for "subscribe to my newsletter," but as you approach ~2,000 contacts, compare ConvertKit/Kit and Brevo. For the contact form itself, a form backend such as splitforms can pipe submissions to Mailchimp via webhook.

OptinMonster Lite — best free WordPress popup plugin

Free tier: 1 campaign, 1 site, basic targeting. Cheapest paid: $9/month Basic (annual). Webhooks on cheapest paid plan: no.

OptinMonster started as a WordPress plugin and never fully escaped that origin. The free Lite version gives you one active campaign on one site, with the core popup engine and basic display rules. It's the right pick if you run a WordPress blog and want a popup that integrates cleanly with your existing setup.

What's good: a polished template library and exit-intent popups. The WordPress integration is one-click — install the plugin, sign in, your popups appear in WP's admin. Better targeting than Sumo at the paid tiers (geolocation, referrer, page-level rules).

What's missing: the free tier is genuinely cramped — one campaign is enough to test, not enough to run real lead capture. Pricing jumps fast: Pro features (exit-intent on mobile, A/B testing, MonsterLinks) are gated behind the $29+/month tier. No webhook support on its cheapest paid plan.

Verdict: trial it free, upgrade if popups become a core acquisition channel, otherwise Sumo's free tier is roomier. For non-WordPress sites, skip both and use a code-first stack.

splitforms — a form backend for code-first sites

Free tier: 500 submissions total with owner email delivery. Pro: $5 per month for 5,000 submissions plus webhooks, exports, and integrations. Annual: $49 per year for 15,000 submissions a month (about $4.08 per month). Spam filtering: rule-based, free tier.

splitforms is what you use when you write your own HTML and want submissions to land in a dashboard, then route to inbox or webhook when needed — without installing an SDK or learning a form builder. You paste a regular `<form>` tag pointed at our API endpoint, drop in an access key, and it works on Next.js, Astro, Svelte, Vue, plain HTML, WordPress, Shopify, Webflow, Framer — anywhere a form can render.

What's good: 500 free submissions to start, with no card and no time limit (Formspree Free is 50 a month). Rule-based spam filtering, owner email delivery, and MCP integration for AI agents are available on Free. Pro adds webhooks and exports for $5 per month. A dashboard with submission history. Built-in honeypot, optional reCAPTCHA, IP throttling.

What's missing: it is a form backend, not a CRM or an email-marketing tool. No hosted popup builder — splitforms doesn't do exit-intent overlays out of the box (pair it with Sumo if you want both). No native CRM views — pipe submissions to HubSpot Free via webhook. The 500 free submissions are a one-time total, not monthly.

Verdict: a good fit if you already write code or use a static site generator and want a contact or lead form with a dashboard. Sign up at splitforms.com/login, grab a key, ship in 60 seconds. Framework starters at /forms/nextjs, /forms/react, /forms/astro, /forms/vue, /forms/svelte.

Sumo — best free popup and exit-intent toolkit

Free tier: unlimited popups, basic A/B testing, list export. Cheapest paid: $39/month Pro. Webhooks on cheapest paid plan: no.

Sumo (originally SumoMe, then Sumo) survived the popup-tool wars by going generous on the free tier. You get welcome mats, scroll boxes, smart bars, and exit-intent popups without paying. Targeting is decent: device, URL, scroll percentage, exit detection. The visual builder is unfussy, and the free tier doesn't plaster their branding aggressively.

What's good: popup variety on the free tier. A/B testing is included. Direct integrations with Mailchimp, ConvertKit, and a generic Zapier hook (paid).

What's missing: the free tier has "Powered by Sumo" branding on popups, which kills the look on serious sites. No webhooks. No conditional logic. Reporting is shallow.

Verdict: good as a free entry point for exit-intent. Outgrow it within a quarter if you're serious. Pair with splitforms for the actual contact form on your site — Sumo for top-of-funnel, splitforms for the form people fill out.

Tally — best free Notion-style hosted forms

Free tier: unlimited forms, unlimited responses, basic logic. Cheapest paid: $29/month Pro. Webhooks: free on every plan under fair use.

Tally is what Typeform should have been — clean, Notion-feel forms with a genuinely usable free tier. Unlimited forms, unlimited responses, conditional logic, file uploads, even payments (with a 2% Tally fee on free). Hosted at a Tally subdomain, but you can embed iframes anywhere.

What's good: the free tier is shockingly generous — most other hosted form builders cap responses, Tally doesn't. The editor is fast and pleasant. Conditional logic, calculations, hidden fields all work free. Direct integrations to Notion, Airtable, Slack, Google Sheets.

What's missing: hosted-only — you're embedding an iframe, not owning the HTML. Custom domains, removing branding, and advanced analytics are paid (webhooks are free on every plan under fair use). The embed is an iframe. The API reads and deletes submissions but cannot create them — it's built for form-fill, not for posting from code.

Verdict: the right pick if you want hosted no-code forms with real depth and you don't mind iframe embedding. For code-first sites, a plain-HTML form backend such as splitforms avoids the iframe. Compare side-by-side in splitforms vs Tally.

Typeform Free — best conversational forms (for tiny volume)

Free tier: 10 responses per month, unlimited forms, basic logic. Cheapest paid: $25 per month Basic. Webhooks on cheapest paid plan: no.

Typeform popularized the one-question-at-a-time form pattern and still does it best — the animations, transitions, and on-mobile experience are polished. The free tier is too small for production traffic, but it's useful for prototyping a survey or testing whether conversational format lifts your completion rate.

What's good: the UX is genuinely best-in-class for surveys and long forms. Logic jumps work well. Built-in analytics show drop-off per question. Templates are professional and varied. Embedding options are flexible.

What's missing: the 10 responses/month cap on free is easy to hit once a form is live. Pricing is steep ($25/month for the entry tier with branding still visible). Hosted-only. No webhook on free.

Verdict: use for surveys you genuinely send to humans (employee feedback, customer research), not for always-on contact capture. Read migrate from Typeform if you're already on it and hitting the cap, or the head-to-head Google Forms vs Typeform vs splitforms.

Which one should you pick? (decision tree)

• You write your own HTML / use Next.js, Astro, Svelte, Vue, plain React: splitforms. Free tier 500 total, webhooks from $5 per month. Sign up.
• You need a CRM with pipeline stages and contact management: HubSpot Free. Add a form backend such as splitforms if you want your own form markup, with a webhook between them.
• Your "leads" are newsletter subscribers and you're a creator: ConvertKit/Kit (10,000 subs free).
• Your "leads" are newsletter subscribers and you want template/automation maturity: Mailchimp until about 2,000 contacts, then compare.
• You need email + SMS combined: Brevo.
• You want a hosted no-code form builder with depth, free at any volume: Tally.
• You run WordPress and want plug-and-play popups: OptinMonster Lite or Sumo.
• You're running surveys, not a contact form: Typeform for polished UX (paid), Google Forms for free internal.

A common stack for a small business site: a form backend like splitforms (contact form) + Mailchimp or ConvertKit (newsletter) + Sumo (exit-intent) + HubSpot Free (CRM if you do outbound). All free tiers, little overlap.

When is splitforms not the right choice for lead capture?

• You need a CRM. splitforms is a form backend with a submissions dashboard; HubSpot Free gives you contacts, deal pipelines and tasks.
• Your leads are newsletter subscribers. Kit, Mailchimp and Brevo manage the list and send the email; splitforms does not.
• You want popups or exit-intent overlays. Sumo and OptinMonster build those; splitforms receives the form submission.
• You want unlimited free submissions or a hosted builder. Tally and Google Forms have no submission cap; splitforms Free is 500 total, then Pro at $5 per month.
• You need webhooks or file uploads on a free plan. splitforms webhooks and uploads (5 files of 5 MB) are paid; Tally includes both on Free.

How to switch (or just get started)

If you're starting fresh, the fastest path to a working capture form is 60 seconds:

1. Sign up at splitforms.com/login — email + 6-digit code, no card.
2. Copy your access key from the dashboard.
3. Paste the form below into any page on your site.

<form action="https://splitforms.com/api/submit" method="POST">
  <input type="hidden" name="access_key" value="YOUR_ACCESS_KEY" />
  <input type="text"  name="name"    required />
  <input type="email" name="email"   required />
  <textarea           name="message" required></textarea>
  <input type="checkbox" name="botcheck" style="display:none" tabindex="-1" />
  <button type="submit">Send</button>
</form>

That's a working lead capture form. Submissions email you, log to the dashboard, and (if you wire it up) fire a webhook to your CRM or Slack. If you're moving from a paid tool, the migration guides cover the common ones: migrate from Formspree, migrate from Typeform. Need a styled starter? Grab the free HTML contact form template. Connecting to other tools — HubSpot, Zapier, Slack, Airtable — each takes about two minutes.

Browse more tooling comparisons on the blog, or check /docs and /api-reference for the request contract. Plan and security questions live in the /faq.

FAQ

More best-of lists