ThumbTest automatically rotates your thumbnails, tracks click‑through rate, and tells you which image hooks more viewers—so you can focus on making videos, not spreadsheets.
We obsess over click‑through rate so you don’t have to.
We swap thumbnails every 24 hours so each version gets equal exposure.
We pull analytics every hour and visualize significance automatically.
Connect your channel and upload thumbnails—our bot handles the rest.
We run identical chi‑square tests used by Fortune‑500 growth teams.
See every thumbnail you’ve tested, what won, and by how much.
OAuth only; we never store your YouTube password or post without consent.
Start free, upgrade when you’re ready to scale.
For growing audiences.
Serious scale? We’ve got you.
Typical creators get a +6‑12% CTR lift after their first experiment.
“ThumbTest boosted my CTR from 4.9% to 6.3% in 5 days. The dashboard is so intuitive it almost feels unfair.”
“I used to change thumbnails manually in spreadsheets. Now I just upload two versions and let ThumbTest work.”
“The significance calculation tells me when to stop the test—no more guesswork.”