The Best Free Tools for Running an Online Business in 2025

When I launched my first digital product business, I made a rule: no paid tools until the business was paying for them.

That meant finding the best free versions of everything I needed. Some were obvious. Some took me months to discover. And a few of the free tools I found were so good that I still use them today, even though I could afford to pay for alternatives.

Here's the complete list of free tools I use to run an online business in 2025 — organized by category, with honest notes on what each one is actually good for.

Writing and Content Creation

ChatGPT (free tier) I use ChatGPT daily: to research topics, generate outlines, write first drafts, create email subject lines, and brainstorm product ideas. The free tier has limitations compared to paid, but it's still useful for the majority of writing tasks.

My most used prompt: "I'm writing a blog post about [topic] for [audience type]. Give me 5 angle options that go beyond the obvious advice." It consistently surfaces approaches I wouldn't have thought of on my own.

Canva (free tier) Canva's free tier is genuinely powerful. I use it for Pinterest pins, Instagram carousels, blog post headers, product mockups, and PDF ebook layouts. The free template library is large enough that you rarely need to design from scratch.

One caveat: if you're creating products like Canva templates for resale, you need to be careful about which elements are free vs. Pro in terms of what buyers can access. Read Canva's licensing carefully.

Hemingway Editor (free web version) I paste every piece of important content — product descriptions, email copy, landing pages — into Hemingway before publishing. It highlights overly complex sentences, passive voice, and readability issues. Free, no account required, and it's made me a significantly better copywriter.

Google Docs Still my default for long-form writing. It's free, collaborative if you ever need it, and exports to PDF cleanly for ebooks and guides.

Research and SEO

Google Search Console Free once you verify your site. Shows you exactly which search queries bring people to your content, your click-through rates, and which pages rank for what. It's essential for understanding whether your SEO is working and which content is worth optimizing.

Ubersuggest (free tier) Neil Patel's keyword research tool has a limited but useful free tier. I use it to check search volume, keyword difficulty, and related keyword ideas before writing a new post. It's not as deep as paid tools like Ahrefs or SEMrush, but it's more than enough for early-stage keyword research.

Google Trends Underrated and free. I use it to spot rising topics before they get competitive, and to understand seasonal patterns in my niche. If you're in the business or side-hustle space, watching trend lines for terms like "digital products" or "online business" shows you when to publish certain content types.

AnswerThePublic (free tier) Generates a visual map of questions people search around any keyword. I use it when I'm planning a new blog post or product — it shows me exactly what my audience is wondering, in their own words. The free tier allows a limited number of searches per day.

Email Marketing

Mailchimp (free up to 500 subscribers) For most beginners, Mailchimp's free plan covers everything you need: an email list, a signup form, a basic welcome sequence, and basic analytics. I used it until I hit 500 subscribers, which took about 8 months.

Brevo (formerly Sendinblue, free up to 300 emails/day) Once my list grew past Mailchimp's free limit, I switched to Brevo. It's generous on contacts (unlimited on free tier) with a daily send limit instead. For a list of under 5,000 subscribers who you're emailing once a week, the free tier often works.

ConvertKit (free up to 1,000 subscribers) ConvertKit's free plan allows 1,000 subscribers and unlimited landing pages. It's the most creator-friendly of the three — cleaner interface, better subscriber tagging, and the landing pages are genuinely well-designed. If you're building an email list for digital products, ConvertKit free is hard to beat.

Operations and Project Management

Notion (free personal plan) I run my entire business out of a single Notion workspace: content calendar, product ideas, income tracking, launch checklists, and client communication. The free personal plan is unlimited pages and more than sufficient for a solo operation.

The learning curve is real, but Notion's free template library gets you started quickly. Search their template gallery for "content creator" or "online business" and you'll find solid starting setups you can adapt.

Trello (free tier) If Notion feels like too much, Trello is simpler. Free cards and boards for tracking tasks, launch checklists, and content pipelines. I used Trello before switching to Notion and it worked well for 18 months.

Google Sheets Still the best free tool for financial tracking. I have a spreadsheet that tracks monthly revenue, expenses, product performance, and traffic. Nothing fancy — no software can replace a clear spreadsheet you actually understand.

Social Media and Scheduling

Buffer (free for 3 channels) Buffer's free plan lets you schedule posts for 3 social channels. That's enough for most small operations: I use it for Twitter, LinkedIn, and Pinterest. You can queue up a week's worth of content in under an hour.

Later (free for 1 profile per platform) If you're heavy on Instagram, Later's free plan is better than Buffer for visual planning — it shows you how your grid will look before you post. Useful for maintaining a consistent aesthetic.

Analytics and Tracking

Google Analytics 4 (free) Free, standard, and essential. Set it up on day one. GA4 tracks where your traffic comes from, what pages people visit, how long they stay, and whether they're converting. The interface is more complex than the old GA, but there are plenty of free guides to the metrics that matter most.

Hotjar (free tier) Hotjar's free plan gives you heatmaps and session recordings for your most important pages. I use it on my product page to see where people drop off and what they're clicking. Watching 10 session recordings reveals more about your conversion rate than any amount of theorizing.

The 5 I'd Keep If I Could Only Have 5

If I had to strip this list to five essential free tools:

1. ChatGPT — For writing, research, and thinking through decisions faster
2. Canva — For all visual content, including product mockups and marketing materials
3. Google Analytics + Search Console — For understanding what's working and what isn't
4. ConvertKit free — For building the email list that becomes your most valuable asset
5. Notion — For running the entire business out of one organized workspace

Everything else is a nice-to-have. These five can take you from zero to a functioning, growing online business without spending anything.

One tool I didn't include on the free list: MadeThis, which is what I use to host and sell my digital products. It's not free — but it's the platform that handles everything the free tools can't: clean product pages, checkout, and automatic delivery to buyers. When your free tools are working and generating sales, it's the natural next step.