FREE TOOLS · SAAS SWAPS

Free tools that replace the SaaS you’re overpaying for.

Most founders quietly bleed hundreds a month on software they could get for free. Every tool below is open-source, does the core job of a popular paid app, and can be self-hosted at no cost. Here is the full swap list, what each one replaces, and roughly what you save.

01

Cal.com replaces Calendly

Open Cal.comsave ~$16 / user / mo

The same shareable booking links and calendar sync you already use — round-robin, buffers, reminders — but open-source with no per-seat pricing. Use the generous free cloud plan, or self-host and pay nothing at all.

02

n8n replaces Zapier / Make

Open n8nsave ~$30–100 / mo

Connect every app you use and automate the busywork between them. Zapier charges per task and gets expensive fast; n8n is open-source, self-hostable for free, and gives you unlimited workflows plus real logic and code steps when you need them.

03

Twenty replaces HubSpot / Salesforce

Open Twentysave ~$45+ / user / mo

A clean, modern CRM for contacts, companies and deals without the four-figure annual bill or the bloat. Open-source and self-hostable, so your pipeline data stays yours and your seat count never inflates the price.

04

Chatwoot replaces Intercom / Zendesk

Open Chatwootsave ~$74+ / mo

Live chat on your site plus a shared team inbox across email, WhatsApp and social — the core of what you pay Intercom for. Open-source, self-hostable, and free to run for your whole support team.

05

Documenso replaces DocuSign

Open Documensosave ~$25 / mo

Send legally binding e-signature requests with a proper audit trail. DocuSign meters your envelopes; Documenso is open-source and self-hostable, so you can send as many documents as you like at no cost.

06

Listmonk replaces Mailchimp

Open Listmonksave ~$30–100 / mo

Blast newsletters and campaigns to large lists without the price creep that kicks in the moment your audience grows. Self-hosted and open-source; pair it with a cheap SMTP provider and your email cost stays flat as you scale.

07

Plausible / Umami replaces Google Analytics 360 / Mixpanel

Open Plausible / Umamisave ~$20–100 / mo

Lightweight, privacy-friendly website analytics that load fast and don't need a cookie banner. Open-source and self-hostable — the numbers you actually check, without the paid-tier upsell or the compliance headache.

08

NocoDB / Baserow replaces Airtable

Open NocoDB / Baserowsave ~$20+ / user / mo

A spreadsheet-database with views, forms and API access — the Airtable workflow your team already knows, minus the per-seat pricing and the row limits. Open-source and self-hostable, so big bases stay free.

One honest note

Free isn’t always zero effort

Open-source usually means you either use a generous free cloud tier or self-host. Self-hosting saves the most but you own updates, backups and uptime — a cheap $5–10/month server and a weekend of setup. If your team is non-technical, start with the free cloud plans, then move heavier tools to your own server once the savings clearly justify it.

Want your whole stack audited?

Klevere maps your current tools, finds what you’re overpaying for, and sets up the free or AI-powered replacements — so your stack does more and costs less.

Tools, features and pricing change quickly; check each tool’s own site for current plans and self-hosting requirements before committing. Savings are rough estimates versus common paid tiers. Tool names are trademarks of their respective owners.