Thumbfa.st is an AI YouTube thumbnail generator with face consistency and style copying. Free plan, paid plans from $19/month. Read our review.
Researched and fact-checked by Bartu Cavusoglu · Updated October 26, 2026
Thumbfa.st is a web-based AI thumbnail generator built specifically for YouTube creators. It describes itself as "the Midjourney of YouTube Thumbnails" and produces up to four thumbnail variations at once while keeping the creator's face consistent across every image. The product is made by Melvyn Malherbe and operated by Codelynx, LLC.
Unlike a general image generator, the tool is organized around the repeating needs of a channel: a saved face, a library of reference styles, templates, and exports at YouTube's 1280x720 size. According to the site, the goal is to cut the time creators spend designing thumbnails in tools such as Canva.
The workflow has three steps. First, the creator uploads face photos to create a Person profile and saves thumbnail styles by pasting YouTube URLs into an Inspiration library. Second, the creator writes a short prompt, selects a Person and an Inspiration, and chooses how many variations to generate, from one to four.
Third, the creator clicks generate, previews the results and downloads the best one as a PNG. The site states the whole process takes under 60 seconds. The editor includes a model selector, with Gemini 3 Pro shown in the demo, and every generation is saved automatically in a version history.
Face consistency is the central feature. A saved Person profile is reused in each prompt so the likeness stays recognizable. Inspiration pulls style, colors, text placement and mood from any YouTube thumbnail URL. Template Mode starts from an existing thumbnail and generates variations, with more than 100 templates offered.
Other capabilities include a drawing mode where rough sketches and annotations become finished thumbnails, a Podcast Mode that swaps guests into a single template, and a pixelate tool for faces or sensitive areas that helps when an AI policy block stops a generation. The footer also lists a thumbnail downloader, video card generator and thumbnail anonymizer as separate tools.
Thumbfa.st is a web-based AI thumbnail generator for YouTube creators. It creates up to four thumbnail variations at once and keeps the creator's face consistent using saved Person profiles. It can also copy the style of existing thumbnails from a YouTube URL.
The Free plan costs $0 and includes 5 thumbnails. Pro costs $19 per month for 150 thumbnails, and Ultra costs $49 per month for 500 thumbnails. A lifetime option costs $199 as a one-time payment, with users supplying their own API keys.
Yes. The Free plan includes 5 thumbnails, up to 2 generated at once, 10 inspirations, 2 persons and the Gemini model. Exports carry a thumbfa.st watermark, and the site says no credit card is required.
You create a Person profile by uploading photos and a description. That profile is selected in each prompt, so the likeness is reused across thumbnails. The Free plan allows 2 persons, and Pro and Ultra allow unlimited persons.
Yes. You paste a YouTube URL and the tool extracts the style, colors, text placement and mood, then saves it to an Inspiration library. You can reference it in later prompts. The Free plan allows 10 inspirations.
Thumbnails are generated at 1280x720, which is YouTube's thumbnail resolution. They download as PNG files that can be uploaded directly in YouTube Studio.
It suits YouTubers, content creators and podcasters who publish regularly and want fast, face-consistent thumbnails. The site also has solution pages for thumbnail designers and enterprise, but gives no details on them.
The sources list no business software integrations. The tool imports style references from YouTube URLs and offers Gemini models on all plans, with OpenAI models added on Pro and Ultra.