Most "best lead generation tools" lists put ten tools that do the same job side by side and leave you to work out which one you need. That isn't how teams actually get leads online. You need something to find prospects, something to get accurate contact data, something to catch the people already visiting your site, something to send outreach, and somewhere to track what happens.

So this list is organized by job. Each of the 10 tools below covers one part of the workflow, with notes on who it suits, where it falls short and how it's priced. At the end there's a short section on how the pieces connect and the smallest stack worth running.

A quick map before the details:

Prices below were checked on each vendor's pricing page in September 2026. They change often, so confirm before you buy.

1. LinkedIn Sales Navigator

Job: finding the right people at the right companies.

Sales Navigator is LinkedIn's paid prospecting product. Its value is the search: LinkedIn lists 50+ advanced filters covering title, seniority, function, company headcount, geography and recent activity such as job changes. You can save searches, get alerts when leads change roles or post, and message people through InMail.

Good for: B2B teams whose buyers are active on LinkedIn, which is most of them. Because people update their own profiles, it's often the most current view of who holds a given role.

Watch out for: Sales Navigator gives you profiles, not work emails or phone numbers. You'll need an enrichment step to turn a lead list into something you can email or call. Native CRM sync is reserved for the top tier.

Pricing: Core is listed at $119.99/month billed monthly or $1,079.88/year, Advanced at $159.99/month, and Advanced Plus (with CRM integration) is custom-priced, per LinkedIn's plan comparison.

If you're building lists from it, our Sales Navigator list building guide walks through the filters and export workflow.

2. Apollo

Job: a contact database with outreach built in.

Apollo combines a large B2B database (its pricing page cites 240M contacts and 30M companies) with email sequences, a dialer and basic CRM features. You search, reveal contact details with credits, and drop people straight into a sequence.

Good for: early-stage teams that want one tool for list building and sending, and don't yet have a separate CRM or sequencer.

Watch out for: credits are consumed when you reveal contacts, pull mobile numbers or export, so heavy usage costs more than the seat price suggests. As with any single database, coverage and accuracy vary by region and segment, so verify emails before large sends.

Pricing: a free plan with limited credits, then per-user paid plans. Check Apollo's pricing page for current tiers and credit allowances.

3. Databar

Job: enrichment across many data providers from one place.

Databar is a spreadsheet-style data enrichment platform connected to 160+ data providers. Instead of buying separate subscriptions for email finders, phone data, firmographics and tech stack, you add those as columns in a table and run them on your list. Waterfall enrichment tries providers in order and stops at the first valid result, which is how you get higher coverage on emails and phone numbers than any one source gives you. (Our explainer on how waterfall enrichment works covers provider order and cost.)

Other parts people use for lead gen: the AI Researcher, which runs a web research prompt on every row (useful for "what does this company sell" or "any recent funding or launches"); Flows, a visual canvas for multi-step pipelines; scheduled runs to keep lists fresh; and sync to HubSpot or Salesforce. Developers can use the REST API, Python SDK, CLI or MCP server, and you can bring your own provider API keys.

Good for: teams that already have a source of prospects (Sales Navigator, a CRM, website visitors, event lists) and need complete, verified data on them.

Watch out for: Databar isn't a sending tool or a CRM. It fills the data layer and hands off to the tools that do outreach.

Pricing: paid plans start at $99/month on a credit system, and you're only charged when a lookup returns data. There's a 14-day full-product trial. See pricing.

4. Hunter

Job: finding and verifying email addresses by domain.

Hunter is one of the longest-running email finders. Enter a company domain and it shows the addresses it has found for that company along with the likely email pattern. It also offers single and bulk email verification, a B2B search product and simple email sequences.

Good for: small teams and founders who mostly need emails for people at known companies, and anyone who wants a quick verification check.

Watch out for: it's email-focused, so no phone numbers, and pattern-based guesses at smaller companies need verification before you send.

Pricing: a free plan with 50 credits a month, then paid plans that scale by monthly credits, with a discount for annual billing. Hunter is also available as an integration inside Databar, so it can be one step in an email waterfall.

5. RB2B

Job: identifying the people visiting your website.

RB2B installs a script on your site and matches visitors to profiles, then pushes them to Slack or your other tools. Its selling point is person-level identification, not just company-level.

Good for: US-focused companies with meaningful website traffic who want to follow up with individuals who looked at pricing or product pages.

Watch out for: RB2B's pricing page marks contact-level identification as US only, and match rates depend on your traffic. Think carefully about how you follow up. A message that says "I saw you on our pricing page" tends to feel invasive, so use the visit for timing and prioritization rather than as the opener.

Pricing: a free plan limited to company-level identification (150 resolutions a month, no person-level data), with paid plans adding person-level identification and business email addresses. See RB2B's pricing.

6. Leadfeeder

Job: identifying which companies visit your website.

Leadfeeder (which operated as Dealfront for a period and has since returned to the Leadfeeder name) identifies companies from website traffic, shows which pages they viewed, and pushes qualified accounts to your CRM. Paid plans add contact enrichment through credits.

Good for: teams selling to accounts rather than individuals, and teams with European traffic, where company-level identification is the more common approach.

Watch out for: you learn the company, not the person. You still need to find the right contacts at that account, which is a good job for an enrichment step. The free plan keeps only the last 7 days of data.

Pricing: the free Lite plan identifies up to 100 companies a month. Paid plans scale by the number of identified companies. See Leadfeeder's pricing. For the workflow after identification, see our guide on how to enrich website visitors.

7. Clay

Job: building custom data workflows.

Clay is a spreadsheet-style workflow tool for enrichment, AI research and multi-step automations, with its own waterfalls across many providers and a large template and community ecosystem. It overlaps with Databar on enrichment, and teams choose between them based on workflow preference, provider coverage and pricing model.

Good for: GTM engineers and ops teams who want to design complex, multi-step workflows and are comfortable with a learning curve.

Watch out for: Clay's pricing counts both "actions" and "data credits," so estimating cost for a large workflow takes some care.

Pricing: a free plan (with a row limit per table), then paid plans billed on actions and data credits. See Clay's pricing.

8. Instantly

Job: sending cold email at volume without wrecking deliverability.

Instantly is a cold email platform built around sending from many mailboxes at once. Its outreach plans include unlimited email accounts and warmup, with limits set by the number of contacts and emails per month. It also offers its own lead database as a separate add-on.

Good for: outbound teams and agencies running campaigns across multiple sending domains. Smartlead is a close alternative with a similar model.

Watch out for: the tool can't fix a bad list. Sending unverified emails at volume is the fastest way to burn a domain, so verify first. You'll also need to buy and set up the sending domains and mailboxes yourself.

Pricing: outreach-only plans start at $47/month (Growth) on monthly billing, per Instantly's pricing page.

9. HubSpot CRM

Job: tracking every lead from first touch to closed deal.

HubSpot's CRM stores contacts, companies and deals, and connects to forms, email tracking and marketing tools. Most lead gen tools on this list integrate with it, which is a practical reason to pick it.

Good for: small and mid-sized teams that want a CRM they can start using this week, with room to add marketing and sales automation later.

Watch out for: costs grow as you add seats and move to higher tiers for advanced automation and reporting. Keep enrichment and deduplication running, or the CRM fills with half-complete records.

Pricing: free tools for up to 2 users, then per-seat Starter plans. See HubSpot's CRM pricing.

10. Calendly

Job: turning a "yes" into a booked meeting.

Getting a lead to agree to talk is only useful if booking is easy. Calendly shares your availability, handles time zones, and on team plans supports round-robin distribution and routing based on form answers.

Good for: any team that books demos or discovery calls, inbound or outbound.

Watch out for: routing and round-robin require the Teams plan. If you need complex routing tied to CRM ownership, look at dedicated routing tools.

Pricing: a free plan with one event type, Standard at $10/seat/month and Teams at $16/seat/month, per Calendly's pricing page.

How the Tools Fit Together

A typical flow for a small outbound-plus-inbound team:

1. Build the target list in Sales Navigator or Apollo, filtered to your ICP.

2. Catch warm accounts with RB2B (people) or Leadfeeder (companies) as they visit your site.

3. Enrich both in Databar or Clay: verified work emails, phones where you'll call, firmographics and a research line for personalization.

4. Send through Instantly or another sequencer, only to verified addresses.

5. Track replies, meetings and deals in HubSpot.

6. Book meetings with Calendly links in your emails and on your site.

The handoffs are where leads get lost. Decide which tool owns each field (for example, the CRM owns lifecycle stage and the enrichment tool owns title and email) so tools don't overwrite each other.

The Smallest Stack Worth Running

You don't need all 10 on day one. A workable starting stack for a small team:

That comes to roughly $150 a month before sending mailboxes and domains, which you'll pay for separately. Add Sales Navigator when LinkedIn becomes your main prospecting source, and a visitor identification tool once your site gets enough traffic to make it worthwhile.

If you're comparing lead sources rather than tools, our list of lead generation sites for B2B sales covers databases and marketplaces.

To try the data layer on your own list, start a 14-day Databar trial.

FAQ

What is the best tool to get leads online?

It depends on which part of the process is failing. If you can't find the right people, start with LinkedIn Sales Navigator or Apollo. If you have names but no working emails, fix enrichment first. If you have traffic but no leads, add visitor identification. Most teams end up with three to five tools, each doing one job.

Are there free tools to get leads online?

Several tools on this list have free plans: Apollo, Hunter, RB2B (company-level only), Leadfeeder Lite, Clay, HubSpot's free CRM tools and Calendly. Free tiers are enough to test a workflow, but credit and data limits mean they rarely support steady outbound.

Do I need both Apollo and Sales Navigator?

Not necessarily. Sales Navigator is stronger for accurate, current role data and LinkedIn engagement. Apollo is stronger if you want contact details and sending in one place. Many teams use Sales Navigator to find people and a separate enrichment step to get verified contact data.

How do I keep lead data accurate over time?

Verify emails before every campaign, re-enrich records on a schedule, and watch for job changes. People move roles often enough that a list built six months ago will have a noticeable share of outdated titles and bouncing addresses.