Comprehensible input · English

Comprehensible input in English

5,230 videos from 45 channels, each scored from its own subtitle track — vocabulary load and speaking pace. Filter to your level, then watch it on YouTube.

5,230
videos scored
45
channels
3,271 h
of material
988
made for learners

Find something to watch

The number on each thumbnail is its difficulty score out of 100: mostly speaking pace, partly vocabulary load. How it is measured →

91/10040:05A tale of two problem solvers | Average cube shadow areaB2-C2 · ~8,000 words · very fast3Blue1Brown91/1007:33How Worried Do You Need To Be About Brain Eating AmoebasB2-C2 · ~10,000 words · very fastSciShow91/10020:00I Tried Every Level of Mexican Street FoodB2-C2 · ~9,000 words · very fastJoshua Weissman91/10012:35Samsung Galaxy S26 Ultra Review: There's a CatchB2-C2 · ~8,000 words · very fastMarques Brownlee91/1006:29AUTOSpring vegetable pot pieB2-C2 · ~8,000 words · very fastAdam Ragusea91/10020:10AUTOI Tested The World's Worst FoodsB2-C2 · ~8,000 words · very fastJoshua Weissman91/10029:42Solving problems by adding a dimensionB2-C2 · ~9,000 words · very fast3Blue1Brown91/1001:43:40AUTOThe Browser (with Brendan Eich, Chief Architect of Netscape + Mozilla and CEO of Brave)C1-C2 · ~14,000 words · very fastAcquired91/10015:37AUTOAsphalt vs Metal Shingles?B2-C2 · ~7,000 words · very fastMatt Risinger91/1007:24Has Proof of Dark Matter Been Hiding on Ganymede?B2-C2 · ~8,000 words · very fastSciShow91/1006:47No-string beef braciole and sauceB2-C2 · ~7,000 words · very fastAdam Ragusea91/10010:29What's going on with Windows Laptops?B2-C2 · ~9,000 words · very fastMarques Brownlee91/1006:00Creamy pea pasta with lemon and garlicB2-C2 · ~7,000 words · very fastAdam Ragusea91/10018:20AUTOBFS Custom Mill Shop Tour - The impossible projects made possibleB2-C2 · ~7,000 words · very fastMatt Risinger91/10027:14Transformers, the tech behind LLMs | Deep Learning Chapter 5B2-C2 · ~9,000 words · very fast3Blue1Brown91/10053:47AUTOBrian Keating on Losing the Nobel Prize & Origins of the UniverseB2-C2 · ~8,000 words · very fastStarTalk91/10032:26Entomologist Answers Insect Questions | Tech Support | WIREDB2-C2 · ~9,000 words · very fastWIRED91/1006:01Chicken chasseur (Frenchy chicken stew with tomatoes and butter)B2-C2 · ~7,000 words · very fastAdam Ragusea91/10025:04I Tried Every Viral Restaurant in AmericaB2-C2 · ~7,000 words · very fastJoshua Weissman91/10029:45I Tried The #1 Restaurant in AmericaB2-C2 · ~8,000 words · very fastJoshua Weissman91/1006:26One-pan orange chicken, no deep-fryingB2-C2 · ~9,000 words · very fastAdam Ragusea92/1005:24AUTOExtra crunchy croque madameB2-C2 · ~9,000 words · very fastAdam Ragusea92/10013:30The AI that solved IMO Geometry Problems | Guest video by @Aleph0B2-C2 · ~9,000 words · very fast3Blue1Brown92/1008:40Belgian waffles cross-bred with Waffle HouseB2-C2 · ~7,000 words · very fastAdam Ragusea

English channels, ranked

Ranked by median difficulty, easiest first. The bar is a range, not a label — a channel typically spans a wide stretch of the scale, so one level would be false for its own hardest videos.

#ChannelLevel range (0–100)MedianVocabulary rangePaceVideosHours
1TED-Ed279150B2-C2medium19219 h
2National Geographic278957B2-C2medium6581 h
3TED228758B1-C2fast6916 h
4Essential Craftsman338763B1-C2fast13739 h
5Real Engineering478664C1-C2fast7630 h
6Technology Connections569067B2-C2fast8947 h
7Kurzgesagt – In a Nutshell138868B2-C2fast6013 h
8Veritasium489269B2-C2fast11856 h
9Lex Fridman278970B1-C1fast127377 h
10StarTalk409170B2-C2fast10998 h
11Acquired339171B2-C2fast86221 h
12Yes Theory288772B1-B2fast9048 h
13ColdFusion558672B2-C2fast11838 h
14Vox439072B2-C2fast9351 h
15First We Feast399772B1-C1fast12241 h
16Andrew Huberman459574B2-C2fast145238 h
17Practical Engineering598975B2-C2fast14241 h
18Johnny Harris499075B2-C2fast11762 h
19Wendover Productions529176B2-C2fast12947 h
20SciShow559676B2-C2fast19748 h
21Jimmy Kimmel Live368776B1-C1fast19742 h
22WIRED269177B1-C2fast7328 h
23Vanity Fair389178B1-C1fast9628 h
24The Diary Of A CEO389279B1-C2fast152316 h
25All-In Podcast459081B2-C2fast132143 h
26PowerfulJRE409081B1-C1very fast99269 h
27Matt Risinger559283B2-C2very fast14054 h
28Doug DeMuro659083B1-C2very fast141100 h
29The Tonight Show Starring Jimmy Fallon408984B1-C1very fast326 h
30Drew Binsky409785B1-C1very fast13272 h
31SmarterEveryDay599186B1-C2very fast5432 h
32Adam Ragusea249687B2-C2very fast18654 h
33Marques Brownlee539287B2-C2very fast12728 h
34MrBeast759487B1-B2very fast9234 h
35This Old House589488B1-C2very fast9046 h
36Mark Rober729589B2-C2very fast4315 h
37Joshua Weissman649690B2-C2very fast11745 h
383Blue1Brown809491B2-C2very fast5824 h

The vocabulary range is each channel’s own spread, not a single verdict: in three of every four of its videos the vocabulary starts at the lower level or above and stays at the upper one or below. Its top end tracks how far the rare words reach, so a channel devoted to one subject sits high on it without being hard to follow — the median score is the column that answers that.

Watching is the other halfYouTube gives you one subtitle line, in one language. Linglass puts English and your own language on screen together, and turns any word you tap into a flashcard.Add to Chrome — free