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YouTube Superpowers

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Download any video in 4K. Extract audio. Grab subtitles. AI-powered course finder. 30+ tools — completely free.

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Paste any YouTube URL — see it work live · Download requires free account

4.9/5
·100K+ users·No credit card
4K+8K
Max Quality
30+
Built-in Tools
100%
Free Core
50+
Languages

30 Tools. One Platform.

Everything you wish YouTube had — download, analyze, learn, create.

Core download & extraction tools

4K/8K Video Download

Download any YouTube video in 720p, 1080p, 4K, or 8K. No quality limits, no watermarks, no speed throttle.

MP3 Audio Extract

Pull audio as MP3 (320kbps) or lossless FLAC. One click on any video. Perfect for podcasts and lectures.

Thumbnail Grabber

Download video thumbnails in all resolutions — including the max-res version YouTube hides from you.

Subtitle Download (SRT/VTT)

Download captions in SRT, VTT, or plain text. Supports auto-generated captions in 100+ languages.

AI Video Finder

Describe what you want to learn and AI finds the best courses, tutorials, and playlists ranked by quality.

Video Clipper & Trimmer

Clip any section before downloading. No need to download 2 hours for a 30-second moment.

Full Transcript Viewer

Read the entire video as searchable text with clickable timestamps. Find anything instantly.

Subtitle Translator

Auto-translate subtitles to 50+ languages. Watch any video in your native language.

Playlist Batch Download

Download entire playlists in one click. Auto-sync — new videos added to playlist download automatically.

Video to GIF Maker

Convert any video moment into a high-quality GIF. Custom size, framerate, and duration.

How It Works

Step 01

Paste a YouTube URL

Drop any YouTube link into CandleTube. We detect the video instantly.

Step 02

Pick Your Tool

Download, extract audio, grab subtitles, get AI summary — choose from 30+ tools.

Step 03

Done

Results in seconds. No signup required for free tools. No watermarks.

See It In Action

Real components. Real data. This is what your learning experience looks like.

AI Course BuilderPaste any YouTube URL
Course preview
21:34 / 32:0065% watched

Learn Python — Full Course for Beginners

variables, data types, functions, loops

Download
Course Sections
Python Basics & Setup
variables, data types, setup · 32 min
Completed
Functions & Control Flow
functions, if/else, loops · 28 min
1d 23h left
Data Structures
lists, dictionaries, tuples · 35 min
Locked
OOP & Classes
classes, inheritance, methods · 40 min
Locked
File I/O & Projects
files, exceptions, final project · 25 min
Locked
AI-Generated QuizzesGenerated from video subtitles
Section QuizPass 70% to unlock next section
2/5

In Python, what is the correct way to define a function that accepts any number of keyword arguments?

Adef func(*args)
Bdef func(**kwargs)
Cdef func(args[])
Ddef func(key=value)
Flashcards

Front

What is the difference between a list and a tuple in Python?

24
Total Cards
18
Mastered
75%
Success Rate
AI Tutor
AI Tutor
4/5correct
I've analyzed the video. Here are the key topics:

1. Variables & Types (0:00 - 8:30)
2. Functions (8:30 - 18:00)
3. Control Flow (18:00 - 32:00)

Say "quiz me" to start, or ask about any topic!
Quiz me on functions

Question 1/5 — Based on the video:

What keyword is used to define a function in Python?

A.function
B.def
C.fn
D.func
Correct! def is Python's keyword. At timestamp 9:15 the instructor shows: "def greet(name): ..."
Ask a question or say "quiz me"...

Simple Pricing

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Free

Core download tools

$0forever
  • 1 download per video
  • 720p max quality
  • MP3 audio extract
  • Subtitle download
  • Transcript viewer
  • Video to GIF
Get Started
Best Value

Pro

Unlimited everything

$10/month
  • Unlimited downloads
  • 4K/8K quality
  • AI Course Builder
  • AI Video Finder
  • Playlist batch download
  • Video clipper & trimmer
  • Subtitle translator
  • All 30+ tools
  • Creator AI assistant
  • Coming soon: Analytics, SEO, Shorts
Start Free Trial

Frequently Asked

Yes. Core features — HD/4K download, MP3 extraction, thumbnails, subtitles, transcript viewer, GIF maker, sponsor skipper, loop, speed control, bookmarks — are 100% free forever. No limits, no watermarks. Pro features (AI tools, batch ops) are $5/month.

Describe what you want to learn in plain English like 'teach me React from scratch' or 'advanced photography composition'. Our AI searches YouTube, analyzes video quality, reviews, and content depth, then ranks the best courses and tutorials for you.

Chrome, Edge, Brave, and all Chromium-based browsers. Firefox support is coming soon. Uses Manifest V3 for maximum security and performance.

Most downloaders only download. CandleTube has 30+ tools: AI course finder, transcript search, video comparison, channel analytics, subtitle translation, auto-clipper, and more. It's a full YouTube intelligence platform.

Yes. Free tier supports playlist download. Pro tier adds auto-sync — new videos added to the playlist are automatically downloaded.

Absolutely. All features work on regular videos, Shorts, and live streams. Download, clip, extract audio — everything works everywhere.

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