"Free" is doing an enormous amount of work in this category, and it means at least four different things depending on who is saying it. Before any list of tools, it is worth being able to tell them apart, because the difference decides whether you are building on a floor or a trapdoor.
The four kinds of free
1. A forever tier. A permanently lower ceiling, no expiry. This is the only kind you can plan around. It exists because the vendor would rather you grow into a paid plan than never arrive.
2. A credit grant. A number of actions, once. Fifty verifications, a hundred lookups, two hundred emails. Perfectly honest, and structurally dangerous for a campaign, because it runs out at the worst possible moment: partway through a list, when the alternative is a decision under pressure.
3. A trial. Everything, for fourteen days. Useful for a tool you have already decided on. Bad for exploration, because you evaluate under a countdown rather than on results.
4. Free because the data pays. Your usage, your list, or your prospects' details are the product. Not always sinister and often disclosed, but if you cannot see how a tool is funded, read the terms before you upload a customer list to it.
The rest of this article assumes you want type 1 wherever possible.
Discovery: genuinely, abundantly free
This is the happiest category. Finding businesses costs nothing if you are willing to work locally.
- Public map and directory data. Free, current, and maintained by the businesses themselves. The full method is in how to scrape Google Maps for leads, including the fields it will never give you.
- Trade association member lists. Free, lower competition than the map, and pre-filtered by somebody who cared. Underrated to the point of being a secret.
- Chamber of commerce and local business directories. Small, but the intent is high and nobody is scraping them.
- A browser capture extension. Free in every serious product, including ours, and the fastest way to turn a directory page you happen to be reading into structured leads. Ours works on any directory, not only maps.
If your buyer is a local business, you will never need to pay for discovery. If your buyer is an enterprise job title, none of the above works and you are in a category where free genuinely does not exist.
Contact finding: free up to a point
Finding a business is free. Finding the person is where credits appear.
For small businesses, the general address on the website is usually the right target and costs nothing to crawl. For anything with a real org chart, the tools that map people to companies all charge, and the free tiers are credit grants measured in tens.
The practical position: if your customer is a five to fifty person business, skip this category entirely. The owner reads the main inbox. If your customer is larger, budget for it and stop pretending otherwise.
Verification: do not economise here
This is the one paragraph in this article where I would like to be unambiguous.
Verification is not the place to save money. A list that is 15% dead produces 150 bounces per thousand sends. Inbox providers begin filtering a sender at around a 2% bounce rate. So a single enthusiastic campaign into an unverified list does not cost you the leads, it costs you the channel, and it takes weeks to recover.
Most decent platforms include verification rather than metering it, which is the model to prefer: a per-address charge creates a small incentive to skip the check on the addresses you are least sure about, which are precisely the ones that need it. We include it on every plan for exactly that reason, and the reasoning is set out in the email bounce rate guide and email verification tools: what they can and cannot tell you.
Sending: free, but the limit is not the price
You can send cold email for nothing from a mailbox you already own. The constraint is not the vendor's pricing, it is physics.
A new domain and a new mailbox cannot be pushed. Not because a tool forbids it, but because inbox providers treat a sudden volume from an unknown sender exactly as you would expect. The free-stack sending plan therefore looks like this:
| Week | Volume per day | What you are doing |
|---|---|---|
| 1 | 0 | Warming the mailbox, sending nothing cold |
| 2 | 10 to 15 | First real sends, watching bounce and spam rates |
| 3 | 25 to 40 | Scaling only if week 2 stayed clean |
| 4 | 50 | A sustainable ceiling for one mailbox |
Warm-up is the other thing not to economise on, for the same reason as verification. Both protect the asset. Email warm-up explained covers what it is doing and why it takes a fortnight.
Pipeline: a spreadsheet, until it is not
A spreadsheet is a genuinely fine free CRM, and I will defend that against most people who sell CRMs.
It stops being free at three specific moments, and you will recognise all three when they arrive:
- Two people work the same list. Now you have a merge conflict wearing a business suit.
- You miss a follow-up you had every intention of sending. The spreadsheet did not remind you, because spreadsheets cannot.
- You want to know what changed last week. A spreadsheet holds the present tense only.
CRM vs spreadsheet is the longer argument about where that line sits.
Assembling a genuinely free stack
Here is a stack that costs nothing and does not sabotage you:
- Discovery: map and directory harvesting plus a capture extension.
- Enrichment: the business website. Crawl it yourself if you must.
- Verification: whatever your sending platform includes. If it includes none, this is the line to spend on.
- Sending: your own mailbox on a separate sending domain, warmed for two weeks first.
- Pipeline: a spreadsheet with a follow-up date column you actually look at.
The honest cost of that stack is not money, it is glue. Five tools that do not know about each other means you are the integration: exporting, deduplicating, re-importing, and remembering which list has been contacted. Price your own hours at anything above zero and the arithmetic gets interesting quickly, which is the real argument for a single platform rather than any feature comparison.
That is also why our own free plan is a forever tier rather than a trial or a credit grant. It runs real harvests, a working AI agent, a sequence, verification and 50 emails a day, indefinitely, because a lead generation tool you cannot evaluate on your own market is not really being offered to you. Start free if you want the whole chain in one login, or take the five tool stack above and keep the money. Both are legitimate. Just do not skip the verification.