Stop guessing which thumbnail wins. See it before you upload.
ThumbLab generates thumbnail variants, previews them next to your real competitors in a simulated feed, and auto-crops your Shorts with captions — all before you ever hit publish.
How it works
From raw upload to a tested thumbnail in three steps
No Photoshop, no hiring a designer and waiting two days. Upload your video, get variants built for your channel, and see which one actually stands out.
Upload your video
Drop in your raw video or an existing thumbnail idea. ThumbLab pulls the best frames and generates 3–5 title + thumbnail variants.
Preview against real competitors
See every variant sitting inside a simulated YouTube homepage and search feed, right next to the videos it'll actually compete with.
Auto-crop for Shorts & Reels
Pick your winner, and ThumbLab auto-crops vertical clips with burned-in captions — ready for Shorts, Reels, and TikTok in one export.
The problem
Every upload, you're paying twice: once for a thumbnail, once for the edit.
Thumbnails and Shorts packaging are two separate recurring costs for almost every active creator — and neither one tells you if it'll actually work until the video's already live.
$10–$60 per thumbnail, every single upload
Fiverr thumbnail gigs are fast, but they're a recurring line item that scales with how often you post — and turnaround is measured in hours, not seconds.
No way to know if a thumbnail will work until it's live
You pick your favorite, publish, and find out from the CTR graph two days later — by then the algorithm has already decided how far the video goes.
A second freelancer, a second invoice, for Shorts
Repackaging your long-form video into vertical clips with captions is usually a separate $30–$150 gig — on top of the thumbnail, every time.
What we'd build
One tool, before you publish: thumbnails, benchmarking, and Shorts — done
ThumbLab isn't a full editing suite. It's the pre-flight check every video needs before it goes live, and the Shorts export you need right after.
AI thumbnail + title variants
3–5 thumbnail and title pairings generated straight from your video, built around what actually gets clicked in your niche.
Simulated feed preview
See every variant sitting inside a real YouTube homepage and search results layout, next to the exact competitor videos you're up against.
Predicted CTR scoring
Each variant gets scored against your channel's own upload history, so you're picking based on signal, not a gut feeling.
Auto-cropped vertical clips
Turn your long-form upload into 3–5 vertical Shorts/Reels clips, automatically framed around the moments that matter.
Burned-in captions, no extra step
Every auto-cropped clip ships with readable, on-brand captions already in place — no separate captioning tool required.
Brand-consistent templates
Lock in your fonts, colors, and face-cutout style once, and every future variant stays on-brand automatically.
How it compares
ThumbLab vs. hiring separately for thumbnails and Shorts
Most creators run two parallel freelance relationships — a thumbnail designer and a Shorts editor — paying per video, with no way to test before publishing.
Channel-analytics tools like TubeBuddy and VidIQ offer thumbnail A/B testing as one feature inside a much broader toolkit — ThumbLab is built around getting a tested thumbnail and packaged Shorts out the door in one pass, not as an add-on.
Planned pricing
Simple, honest pricing
Free to test on your next upload, no credit card. Not final: tell us below if this pricing works for you.
Free
$0/mo
Test it on your next video
- 3 thumbnail variants
- Feed preview
- 1 Shorts export
Creator
Early-bird $14/mo forever$19/mo
For channels posting weekly
- Unlimited variants
- CTR scoring
- Unlimited Shorts exports
Studio
$39/mo
For teams & multi-channel creators
- Everything in Creator
- Multiple channels
- Brand template library
No per-video fees. No watermarks. Cancel anytime.
Raise your hand
Want ThumbLab to exist?
Takes 10 seconds, no commitment. No product yet, no spam — one email when it ships, and your answers shape what we build.
Count me in
We'll email you the moment it's ready — nothing else.
Your email is used for exactly one thing: telling you when ThumbLab exists.