Free marketing tools for startups: the $0 stack

A solo founder can cover the entire marketing loop for $0 with about six tools: Search Console for research, Figma for anything visual, Resend for product email, Kit or beehiiv for a list, Senja for testimonials, and PostHog for measurement. The useful part of this article is not the list. It is the table near the end showing exactly where each of those free tiers stops.

Every roundup of free marketing tools has the same defect. It calls a tool free, you sign up, you build a habit on it, and eight weeks later you discover the free plan caps at 500 contacts or three scheduled posts or a fourteen-day window that quietly expired. The word "free" was doing a lot of work. So this list is organized around the ceiling rather than the feature list, and every ceiling below was read off the vendor's own pricing page on the day this went up.

Do free marketing tools actually grow a startup?

No. Systems grow a startup, and tools make a system cheaper to run. That distinction sounds like a platitude until you notice how a typical $0 stack fails: not because a tool was missing, but because eleven accounts got created in one weekend and none of them ended up attached to a weekly habit.

So pick tools against a loop, not against a category. The loop for a product with no customers has five stages, and one tool per stage is the whole budget you have attention for:

If a tool does not sit on that loop, it is not part of a $0 stack. It is a tab you will close in March.

Which free tools cover research and SEO?

Google Search Console, Google Trends, and Ahrefs Webmaster Tools, in that order of importance. Search Console is the only one of the three with no paid tier at all and no usage ceiling, which makes it the single most valuable free tool a founder can install. Google's own documentation on getting started with Search Console describes it as the way to see how your site performs in Search and what to do about it, and it costs nothing forever.

Two things founders get wrong about it. The first is delaying verification until there is something worth measuring. Search Console data starts accruing the day you verify and cannot be backfilled, so a domain that resolves today should be verified today. The second is reading it as a traffic report. Its real value is the Queries table: the exact phrases people typed before Google showed them your page. Those phrases are the only keyword research that is specifically about you.

Ahrefs Webmaster Tools fills the gap Search Console leaves. Verify a site you own and you get a technical audit, your backlink profile, and the keywords you rank for, at no cost. The honest limit is that you can only analyze properties you have verified. Pointing it at a competitor is the paid product, and no free workaround exists. For the parts of search a founder can influence without any of this, the solo founder's approach to SEO covers what to publish and in what order.

What can you use for content and design at $0?

Figma's Starter plan handles every visual a pre-revenue product needs, and the writing tools you already pay for handle the rest. Starter gives you unlimited drafts plus UI kits and templates, which is more than enough for a landing page mockup, an Open Graph image, a set of app screenshots, and the social cards for a launch. The ceiling is collaboration, not creation: shared team projects and version history are what the paid seat buys, and a solo founder drafting alone does not hit that.

The more interesting $0 content decision is not which design tool. It is whether you build something instead of writing something. A small free utility aimed at the same person who would buy your product tends to earn links and repeat visits that a blog post cannot, which is the whole argument in using free tools as a marketing channel. The build cost is a weekend. The tool cost is zero.

Every tool on this list automates something you could do by hand. None of them does the thing you cannot do alone, which is get another person to care.

Which email tool should a founder start on for free?

Two different tools, because product email and newsletter email are different jobs and one account does both badly.

For transactional email (password resets, receipts, notifications, anything the product itself triggers), Resend's free tier covers 3,000 emails a month with a cap of 100 a day, across three domains, with 30 days of log retention. The daily cap is the one that surprises people. It is generous for product email and completely wrong for announcements: a launch note to 400 subscribers takes four days to send through it, which is how founders end up accidentally trickling a launch out over a week.

For the list itself, pick between Kit and beehiiv on how you plan to grow. Kit's free plan runs to 10,000 subscribers with unlimited broadcasts, forms and landing pages, but sequences and visual automations are paid, with Creator starting at $33 a month. beehiiv's free Launch plan stops at 2,500 subscribers but includes a hosted archive, a custom domain and its recommendation network, with paid plans starting at $49 a month. Kit's ceiling is behavior; beehiiv's ceiling is headcount. If you plan to send a broadcast whenever you ship something, Kit's free tier will last years. If you plan to run automated onboarding sequences, you will be paying one of them within a quarter, and it is better to know that now.

How do you collect social proof without paying?

Senja's free plan collects and displays 15 video or text testimonials with unlimited widgets, which is more testimonials than most first products ever gather. The sixteenth requires Starter at $29 a month. Fifteen good ones, with a real name and a real face attached, will outperform fifty anonymous ones on the landing page anyway.

The tool is the easy half. Asking is the hard half, and the free plan does not make anyone say yes. Be careful about what you offer in exchange, too: the Federal Trade Commission's endorsement rules require that any material connection between you and a reviewer be disclosed, and incentivized reviews without disclosure are a legal problem long before they are a marketing one. Free tiers are cheap. Cleaning up a compliance mistake is not.

There is a second reason to gather social proof in public rather than only on your own page. When somebody asks an AI assistant whether your product is any good, the answer gets assembled from sources the model trusts, and those skew heavily toward community and reference sites rather than vendor marketing. Research published by 5W on AI citation sources found Wikipedia at 13.15% and Reddit at 11.97% of US ChatGPT citations, together more than a quarter of the total. Your testimonial widget is invisible to that process. A review thread, a directory listing and a community mention are not.

Can you run analytics without a data team?

Yes, and the free allowances are far larger than an early product will use. PostHog gives you 1 million analytics events, 5,000 session recordings and 1 million feature-flag requests every month at no cost, and usage stops at the allowance instead of quietly billing you. Cloudflare Web Analytics is free with a JavaScript beacon and needs no Cloudflare plan at all, which makes it the right answer when you want honest traffic numbers without a cookie banner.

Run one, not three. The discipline that matters at this stage is picking a single number you check every Monday, and the correct number is almost never pageviews. For a pre-revenue product it is usually activations: how many people who signed up this week reached the moment the product is actually for. Everything else is texture.

Where exactly does each free tier stop?

Here is the table nobody publishes: the real ceiling on each free plan, and what happens the moment you cross it. Verified against each vendor's own pricing page in August 2026. Free tiers move, so treat the shape as durable and the numbers as perishable.

Read that table once and a pattern shows up. The tools with no real ceiling are the ones that measure things. The tools that meter you are the ones that reach people. Nobody gives away distribution, because distribution is the expensive part, and every free plan on this list is priced accordingly.

What can no free tool give you?

Other people. Every tool above automates a task you could do by hand; not one of them makes a stranger read the post, try the product or leave the review. That is the actual constraint on a first launch, and it is why founders who assemble a perfect stack still watch a launch land on nobody.

The channels that reliably deliver a first hundred users are free too, and they are all human: Product Hunt Upcoming, Indie Hackers Launch, and the founder subreddits like r/SaaS and r/Entrepreneur. Cheap paid options exist alongside them, but the free ones do the work. What none of them hands you is the group of people who will actually show up on the day, which is the gap marketing a SaaS on no budget spends most of its time on.

That gap is what the Favors.dev points economy is built to close. It is a founder marketing co-op: you do a verified marketing favor for another founder, whether that is a review, a testimonial, a share, structured feedback or an editorial backlink, and you earn points for it. Then you spend those points to get the same done for you. Every favor is verified before any points move, so the exchange is work for work rather than compliments for compliments. It is the one line item in a $0 stack that a credit card cannot buy, because what you spend is effort rather than money.

One last thing about where all this free tooling is heading. Google's own guidance on AI features in Search is blunt that there are no additional requirements or special optimizations for AI Overviews and AI Mode, and that ordinary SEO best practices still apply. So the free stack above is not about to be obsoleted by the shift to answer engines. The research tool, the publishing habit and the social proof all still count. What changes is where the proof has to live: increasingly outside your own domain, in the community and review sources these systems draw on.

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