According to AlphaMoat, as of 2026-09, the Chrome extension LittleJohnny has 31 users (+72.2% MoM), rated 5 (2 reviews) — ranked #6,426 of 9,324 AI browser extensions, and #480 of 676 in Education & Research.
What is LittleJohnny
YouTube without the brainrot. LittleJohnny keeps educational videos and blocks distracting content during focused study sessions. Stop relying on sheer willpower to beat algorithms designed to distract you.
Every time you sit down to study or do deep work, you are fighting against multi-billion dollar platforms engineered by some of the smartest people on earth to hijack your attention.
You go to YouTube to find a quick tutorial for your assignment. The homepage hits you with a wildly entertaining thumbnail. You tell yourself, "Just one video." Two hours later, your assignment is still blank, and you're watching a 40-minute video essay about deep-sea crabs.
Traditional website blockers don't work because you need YouTube for studying. If you block the whole site, you can't get your work done. If you leave it unblocked, you inevitably get sucked into the algorithm.
That is exactly why we built LittleJohnny.
LittleJohnny isn't just a generic website blocker. It is a ruthless bouncer for your attention. Here is how it actually solves the problem:
Show the rest of the store description▾
1. The YouTube Harvester You don't have to block YouTube entirely. Instead, LittleJohnny lets you choose your level of discipline. Set it to 'Low' to simply weed out the absolute worst brain-rot, or dial it all the way up to 'Strict' and tell the AI exactly what you are trying to study (for example: "React programming"). You can still search for and watch your React tutorials, but the second you try to click a distracting gaming video or vlog, LittleJohnny evaluates the context and instantly redirects you away.
2. No Negotiations Other blockers give you a little prompt that asks, "Are you sure you want to visit this site?" or give you a button to temporarily bypass the block. LittleJohnny doesn't negotiate. If you are in an active Focus Session, there are no bypass buttons. If you try to open a distracting website, you are instantly yanked back to your work tab.
3. Set an Intent and Go Just open the extension, type in what you need to accomplish, set your strictness level and timer, and start. LittleJohnny's engine will sit securely in the background and silently evaluate the links you click to make sure you stay on track.
You don't need more discipline. You just need an unfair advantage against the algorithm. Install LittleJohnny, eliminate the doomscrolling, and finally get your work done.
Extension profile
User Growth Trend
Popular in Education & Research
AI for teachers, right inside Google Docs, Classroom, YouTube, and more. Tell Brisk what you need and save 10+ hours a week.
+ Compare
Your ultimate knowledge and English learning tool to discover the world and upskill yourself. Translate video, websites and PDF.
+ Compare
Bring AI detection, citation checks, live essay feedback, and writing replays directly into Google Docs and your workflow.
+ Compare
Trancy provides bilingual subtitle for platforms like YouTube, Disney+, as well as AI translator for websites.
+ Compare
Automatically import flashcards and notes from any video, PDF, article, or flashcard site. Knowt is the fastest way to study.
+ Compare
Your AI research assistant for understanding scientific literature.
+ CompareData month: 2026-09 · User counts and ratings come from public Chrome Web Store data, aggregated monthly. See methodology.