Keysearch alternatives: 5 open-source picks

Keysearch costs $24/mo — $288 a year. These 5 alternatives replace it for $0, led by OpenSEO, SerpBear and Plausible. All 5 are open source. License, stars and last commit checked by hand on 2026-08-29. No trials, no crippled tiers.

keysearch $24/mo→these $0YEScan I open-source it? the honest breakdown →📈 seo & marketing
O

OpenSEO

open sourcewebself-hosteddocker to self-host

Keyword discovery, clustering and repeat rank checks in one container; DataForSEO sends the usage bill.

S

SerpBear

open sourcemobilewebself-hosteddocker to self-host

Rank history plus Google Ads keyword ideas; less research suite, more honest spreadsheet with alarms.

P

Plausible

open sourcewebself-hostedone-click install

Lightweight, privacy-friendly, cookieless web analytics in a single Docker deployment

licenseAGPL-3.0

runsyour server

setupnot verified by us yet — check the repo README

facts verified 2026-08-29

M

Matomo

open sourcewebself-hosteddocker to self-host

The veteran GA alternative: full-fat web analytics, heatmaps, no data sampling, and the data stays on your server.

licenseGPL-3.0

runsyour server

setupnot verified by us yet — check the repo README

facts verified 2026-08-29

M

Mautic

open sourcewebself-hostedself-host, real ops

Full marketing automation: segments, drip campaigns, lead scoring, landing pages. Heavy PHP stack, but it replaces a very expensive tool.

licenseGPL-3.0

runsyour server

setupnot verified by us yet — check the repo README

facts verified 2026-08-29

What each one is, in full: OpenSEO · SerpBear · Plausible · Matomo · Mautic

last updated 2026-08-29 · no votes, no pay-to-list · just what's real

the usual suspects · recommended everywhere, rejected here

SEO PowerSuite FreePlenty of keyword machinery, but the free edition cannot save projects; tomorrow's research starts from zero.

how to choose a Keysearch alternative

Easiest to get running

Plausible — a one-click install, no server to maintain.

Most proven

Plausible, with 23,000 GitHub stars — the largest community of the 5, which usually means more answers when something breaks.

Works on your phone

SerpBear has a mobile app on iOS and Android.

Needs real ops to self-host

Mautic is capable but expects someone to run a server, updates and backups. Budget for that before choosing it.

what you give up by leaving Keysearch

None of the picks above covers all of it. The full verdict says which gaps matter.

Keysearch alternatives at a glance

toollicenserunning itplatformsstarsactive
OpenSEOopen sourcedocker to self-hostweb, self-hosted10,6142026-07
SerpBearopen sourcedocker to self-hostweb, ios, android, self-hosted2,0162026-05
PlausibleAGPL-3.0one-click installself-hosted, web23,0002026-08
MatomoGPL-3.0docker to self-hostself-hosted, web20,0002026-08
MauticGPL-3.0self-host, real opsself-hosted, web8,0002026-08
Want the honest verdict and what you give up by switching?read the verdict →

why people still pay for Keysearch

People still pay for Keysearch because customers pay for a continuously refreshed web-scale dataset whose collection cost dwarfs the dashboard around it. The recurring cost buys proxy and API costs, crawl freshness, geolocation, anti-bot rules, keyword normalization, storage, and data QA, not just the visible interface. If none of that applies to you, any pick above saves $288 a year.

questions about switching from Keysearch

Is there an open-source alternative to Keysearch?

Yes: OpenSEO, SerpBear, Plausible and 2 more. Every tool on this page is open source: no trials, no crippled tiers.

Can open source really replace Keysearch?

Our verdict is YES. Plausible (23k stars), Matomo (20k stars), OpenSEO (11k stars) are mature open-source replacements for Keysearch — self-host in one command and stop paying $24/mo. The full verdict, and what you give up by switching, is at caniopensourceit.online/keysearch.

What is the easiest open-source Keysearch alternative to set up?

Plausible — a one-click install, no server to maintain.

What is the most popular open-source Keysearch alternative?

By GitHub stars, Plausible (23,000). Matomo is next with 20,000.