Best free sales prospecting tools
Tools that list a free plan on their own pricing pages.
How this list works: Only products whose pricing page shows a free plan. Listed alphabetically. Pricing verified against vendor pages on 2026-10-16. No placement here is paid. Methodology.
| Tool | What it is | Price (vendor-published) | Free plan | Channels |
|---|---|---|---|---|
| Apollo.io | Sales intelligence, lead generation and email outreach platform. | See vendor | Yes | email, phone |
| Attio | AI-native CRM. | Free; Plus $44/user/mo monthly ($35 annual); Pro $99 | Yes | — |
| ColdIQ | GTM data API across 40+ providers for AI agents. | Free; Starter $99/mo (7,000 credits) | Yes | — |
| Hunter | Email finder, verifier and outreach tools. | Free 50 credits; Starter $49/mo monthly ($34 annual) | Yes | |
| Kaspr | B2B contact data via a LinkedIn extension. | Free plan; Starter shown at $49 or $65/user/mo depending on billing | Yes | — |
| Koala | Intent signals and visitor identification for sales plays. | Free; Starter $200/mo; Growth $1,000/mo | Yes | — |
| LeadIQ | B2B prospecting data with universal credits. | Free (1 user, 50 credits); Pro $200/mo | Yes | — |
| Lusha | B2B contact data with a permanent free plan. | Free plan with 40 credits/mo; paid tiers via credit slider | Yes | — |
| Mixmax | Sales engagement in Gmail, priced by recipients reached. | Free (50 recipients/mo); from $29/mo; 14-day trial | Yes | |
| Outplay | Multichannel sales engagement platform. | Free forever tier; $39/mo billed annually; $89 and $139/user/mo | Yes | email, phone, linkedin |
| RB2B | Website visitor identification pushed to Slack/CRM. | Free; Starter $79/mo; Pro from $149/mo; Pro+ from $199/mo | Yes | — |
| Regie.ai | AI sales engagement platform with auto-pilot AI SDR agents. | Free 250 credits; Pro $41/mo annual ($49 monthly); Team $125/seat/mo annual | Yes | email, phone |
| Unify | AI agents that research accounts and create personalized messages. | Free; Base $20/seat/mo; Pro $60/seat/mo (monthly) | Yes | |
| Yesware | Email tracking and multichannel campaigns for Outlook/Gmail. | Free; Pro $19/seat/mo; Premium $45; Enterprise $85 | Yes | |
| ZeroBounce | Email validation and deliverability tools. | Freemium (100 validations); pay-as-you-go from $39; ZeroBounce ONE $99/mo | Yes | — |