How to A/B test YouTube titles for free
YouTube Studio's Test & Compare lets you test thumbnails and, since YouTube added it, titles on the same video, and picks the winner by watch time. Write two or three variants that differ in one idea (outcome vs curiosity vs a number), not just word order. For old videos, change the title and compare the four weeks before and after.
By Nicolae Maties · Updated
1 free optimization per day · Unlimited for a one-time $25 · Works inside YouTube Studio
Most title tests compare variants that are basically the same
If the variants only swap two words, any difference is noise. Test different promises: what the viewer gets, a question, a specific number, a comparison.
Keep the thumbnail the same while testing titles, so the result is about the title.
Run a title test
- 1
Open the video in YouTube Studio
Find Test & Compare in the video's details. Availability can vary by channel.
- 2
Add 2–3 title variants
Make each one a different angle on the same video. Keep every variant honest to the content.
- 3
Let it run
YouTube decides the winner by watch time and applies it. Small channels may need longer to get a result.
- 4
Reuse what won
If outcome-style titles win repeatedly, use that formula on the next uploads and old videos.
Get title variants worth testing
Connect your channel and iutu.be writes 10 titles per video, two for each formula, so you can test angles that are actually different.
Frequently asked questions
Is YouTube title testing free?
Yes, Test & Compare is built into YouTube Studio at no cost, where it is available for your channel.
Can I test titles on old videos?
You can change an old video's title and compare the same number of days before and after. iutu.be keeps the old title so you can roll back.
Where do I get good variants?
Use the free title generator for options grouped by formula, then pick the two most different ones to test.