Everything you need to grow on YouTube
Lumence gives creators a complete toolkit — from generating and analyzing thumbnails to researching niches, tracking competitors, and planning content. Every feature is purpose-built to improve your click-through rate and channel growth.
AI Generator
Create thumbnails from a text prompt in seconds.
Analyzer
Score any thumbnail across 12+ quality signals.
Niche Finder
Discover high-opportunity niches with live data.
Trending
See what topics are gaining momentum right now.
Competitors
Track any channel and benchmark against them.
Compare
Side-by-side analysis of two thumbnails.
Content Calendar
Plan and track every video from idea to publish.
A/B Testing
Test thumbnail variants against niche benchmarks.
Thumbnail Analyzer
Upload any thumbnail and get an instant, detailed breakdown of every factor that affects whether viewers click. No guesswork — just clear scores and specific recommendations you can act on immediately.
- Overall quality score from 0–100 with grade rating
- Face and emotion detection — identifies dominant expressions that drive clicks
- Text legibility scoring at multiple sizes including mobile
- Color contrast analysis against accessibility and platform standards
- Aesthetic and visual composition evaluation
- Mobile preview mode — see exactly how your thumbnail looks on a phone
- Niche benchmarking — compare your scores against top creators in your category
- Detailed recommendation breakdown per signal
Face & Emotion
Detects faces, emotion type, and emotional intensity — the strongest click driver in thumbnails.
Text Legibility
Scores your text at thumbnail size. Flags text that becomes unreadable on mobile.
Color & Contrast
Measures contrast ratios and color harmony to ensure your thumbnail pops in the feed.
Aesthetic Score
Evaluates visual appeal, composition balance, and production quality.
Niche Benchmark
Compares your scores to the top-performing creators in your selected category.
Instant Results
Full analysis in under 10 seconds. No waiting, no queue.
How it works
Describe your video
Enter a prompt describing your video topic, style, and any text you want on the thumbnail.
Choose a style
Select from a range of visual styles — bold, cinematic, minimal, expressive, and more.
Generate & refine
Get multiple thumbnail options instantly. Iterate with follow-up prompts until it's perfect.
Analyze before publishing
Run the generated thumbnail through the Analyzer to confirm scores before you upload.
AI Thumbnail Generator
Go from idea to publish-ready thumbnail without touching design software. Describe your video, pick a style, and get professional thumbnails in seconds — then run them through the analyzer before uploading.
- Text-to-thumbnail generation from natural language prompts
- Multiple style presets — bold, cinematic, minimal, expressive
- Integrated with the Analyzer — score your generated thumbnails instantly
- Iterate with follow-up prompts to refine composition and style
- Download in YouTube-optimized dimensions
Niche Finder
Stop guessing which niches have room for new creators. Lumence scans YouTube in real time and surfaces sub-niches ranked by genuine audience demand — not vanity metrics.
Opportunity Scoring
Every niche gets a 0–100 opportunity score calculated from viewer demand, engagement, trend momentum, and competition. Higher score = more room for a new creator to break through.
Live & Pre-loaded Data
The index is refreshed nightly so results are ready the moment you open the page. Trigger a fresh live scan on any niche to get data from the last 24 hours.
Dynamic Discovery
Don't limit yourself to predefined niches. Hit "Discover More" on any category and Lumence surfaces emerging sub-niches from actual YouTube data — ones you wouldn't have thought to search for.
Trend Direction
Rising, stable, or declining — powered by live search trend data.
YPP Ready Badge
Flags niches where channels are hitting monetization thresholds.
Save Niches
Bookmark niches you're monitoring and revisit them any time.
Score Alerts
Get notified when a saved niche's opportunity score shifts significantly.
Freshness Indicators
Color-coded badges show how recently each niche was scanned.
16 Categories
132+ sub-niches across Gaming, Finance, Fitness, Education, and more.
Consistency Scoring
Filters out one-hit-wonder videos — only consistently high-performing niches score well.
Deep Scan
Drill into any discovered niche for full VSR, engagement, and competition metrics.
Trending
Know what's gaining momentum before it peaks. The Trending page surfaces topics and formats that are growing on YouTube right now — so you can create content while there's still first-mover advantage.
- Real-time trending topics across categories
- Rising content formats and video styles
- Filter by niche to see what's trending in your space
- View representative thumbnails from trending topics
- Spot patterns before they become oversaturated
Why it matters
Most creators react to trends after they peak. By the time you see a format everywhere, the algorithm is already moving on. Lumence surfaces trends early so you can be the creator setting the pattern, not following it.
What you can track
Performance metrics
Views, engagement rate, and upload frequency for any channel.
Thumbnail style analysis
See the visual patterns that define their best-performing thumbnails.
Growth trajectory
Identify whether a competitor is growing, plateauing, or declining.
Content strategy signals
Understand what topics and formats are working for them right now.
Competitor Tracker
Understand exactly what's working for the channels competing for your audience. Track any YouTube channel, analyze their thumbnail strategy, and find the gaps your content can fill.
- Add any YouTube channel to your competitor list
- Analyze their thumbnail visual patterns and styles
- Compare their performance metrics against your own
- Identify content gaps and underserved topics in their catalog
- Monitor multiple competitors simultaneously
Side-by-Side Compare
Put two thumbnails head-to-head and get a clear, signal-by-signal comparison. Whether you're choosing between two of your own designs or benchmarking against a competitor, Compare makes the decision objective.
- Compare any two thumbnails side by side
- Signal-by-signal score breakdown for both thumbnails
- Visual diff highlighting key differences in composition and style
- Clear winner indication per signal and overall
- Works with your own thumbnails or any public YouTube video
Signals compared
Content Calendar
Track every video from first idea to published. The Content Calendar gives your production pipeline structure — so nothing falls through the cracks and publish dates are always met.
Month View
A traditional calendar grid showing all planned and published videos. Drag entries to reschedule. Click any day to add a new video idea instantly.
Pipeline View
A Kanban board showing every video organized by production stage. Move videos through stages with a single click. Overdue videos are flagged automatically.
iCal Export
Export your content calendar as a .ics file and import it into Apple Calendar, Google Calendar, or any calendar app. Keep your schedule in sync.
9 production stages
Each video moves through these stages. Attach thumbnail analyses, add notes, set publish dates, and link to your YouTube video once it's live.
How A/B Testing works
Upload variants
Upload 2 or 3 thumbnail variants for the same video idea.
Select your niche
Choose the category your video targets for contextual benchmarking.
Analyze each variant
Every thumbnail is scored across all quality signals simultaneously.
Get a clear winner
See which variant is strongest per signal and overall — with a data-backed recommendation.
A/B Testing
Stop publishing thumbnails and hoping. Upload multiple design variants and get a clear, data-backed answer on which one will perform best in your niche — before you commit.
- Test 2 or 3 thumbnail variants simultaneously
- Benchmarked against niche-specific performance data
- Per-signal winner comparison — emotion, text, contrast, and more
- Overall winner recommendation with confidence indicators
- Save test results to your history for future reference
- Attach winning thumbnail to your Content Calendar entry
Analysis History
Every thumbnail analysis you run is saved to your personal history. Track how your thumbnail quality improves over time and reference past analyses whenever you need them.
- Full history of every analysis you've run
- Re-open any past analysis to review scores and recommendations
- Track quality score progression over time
- Quickly reanalyze a thumbnail after making changes
- Export individual analyses for external reference
Full history
Every analysis saved automatically. Never lose a score.
Score tracking
See how your quality scores improve as you iterate.
Reanalyze
Re-run an analysis after editing your thumbnail to measure improvement.
Private by default
All your analysis history is private to your account.