1
8 tools
Research
Find what to make
Browse all 8 research toolsAI · Free · No signup · For YouTube creators
Composite Visibility Score across CTR, metadata, niche headroom, and growth trajectory. Whole-channel Audit with one-click AI fixes for every weak dimension. Outlier Finder for breakthrough videos. Weekly historical tracking — plus 16 single-purpose generators and utilities.
Flagship · Video Audit + AI Fix
Paste a URL — get a 0-100 score for title, description, tags, hashtags, and chapters. Then one click triggers an AI YouTube Coach that rewrites the weak dimensions into aligned replacements you can copy straight into YouTube Studio.
No signup. No email. 30 audits per day, free forever.
The creator workflow
We cover every step a YouTube creator runs through — pick a tool for the stage you're at.
8 tools
Find what to make
Browse all 8 research tools6 tools
Titles, tags & thumbnails
Browse all 6 optimize tools3 tools
Descriptions & format
Browse all 3 publish tools4 tools
Audit & earnings
Browse all 4 analyze toolsType your topic. Claude Haiku returns 10 SEO-optimized YouTube titles in different angles — curious, listicle, how-to, comparison, contrarian. Pick the one that fits, copy it, ship the video.
Try the title generatorYouTube hides tags from public view — but they're still in the page source. Paste any competitor's video URL and pull their full tag list in one click. The same intel TubeBuddy charges $19/month for, free.
Try the tag extractorNeed a competitor's thumbnail for your design reference board? Or your own thumbnail in print-quality 1280 × 720? Paste the URL — get every available resolution at once, no watermarks, no signup.
Try the thumbnail downloaderMax resolution
1280 × 720
168 KB
HD
480 × 360
44 KB
Medium
320 × 180
18 KB
Standard
120 × 90
5 KB
What you get that paid YouTube SEO suites either charge for or don't offer at all.
No subscription, no trial, no per-tool credits. Every tool — including Visibility Score, Channel Audit, and the AI Fix-with-AI orchestrator — is free for personal and commercial use.
Claude Haiku powers the AI YouTube Coach (one-click fixes after every audit), the Competitor and Outlier pattern analysis, and the Visibility Score one-sentence summary. Browser-side utilities stay browser-side — no LLM cost, no delay.
No accounts. No analytics that follow you. Your prompts and outputs are not stored. Channel IDs in our audit log are SHA-256-hashed before storage — IPs are held in memory only for fair-use limits.
Composite Visibility Score (0-100) summarizes a channel's standing in one shareable number. Channel Audit, Video Audit, and Outlier Finder turn diagnosis into action. The toolkit is a measurement instrument first, generators second.
Competitor Channel Analyzer pulls top 10 + latest 10 with AI pattern summary. Outlier Finder surfaces channel videos that broke through 3× the median — the data agencies pay Spotter $50K+/year for, free.
Track this channel on any Visibility Score result and a weekly cron re-scores it every Monday. After a few weeks, the timeline shows your trajectory — the trend competitors only show behind a paywall.
Anyone who works with YouTube content — solo or in a team.
Optimize titles, tags, and descriptions before publishing.
Generate B2B video metadata at scale across multiple brands.
Find tags, hashtags, and ideas without paying $30/month tools.
Research competitors, find low-competition keywords, ship faster.
Format chapters, generate descriptions, transcribe lectures.
Free toolbox for client work that doesn't burn the budget.
See how SEO Check Tools compares — what's the same, what's different, what's missing.
Newsletter
Occasional emails — typically when a new tool ships or a major guide drops. No spam, never sold, unsubscribe in one click.
Quick answers to common questions about seocheck.tools.
Composite 0-100 metric across four weighted sub-scores: CTR Potential (35% — title quality), Metadata Quality (25% — description/hashtags/chapters discipline), Niche Headroom (15% — reach beyond subscriber base), and Growth Trajectory (25% — outlier rate). Paste any channel handle or URL and get an A-F grade with an AI one-sentence summary in 5 seconds. Shareable as a single number, drillable into specific sub-scores for action.
After Video Audit identifies weak dimensions, a single Fix-with-AI button runs ONE Claude Haiku call that returns aligned replacements for ONLY the weak or fair fields (title, description, tags, hashtags). Strong dimensions return null — the AI doesn't waste effort rewriting what's already working. Copy the new package straight into YouTube Studio. Turns the audit from diagnosis into one-click solution.
Yes. On any Visibility Score result, click 'Track this channel'. A weekly Vercel cron re-scores the channel every Monday and accumulates a timeline. After 2-3 weeks the chart shows your Visibility Score trajectory — the trend competitors only show behind a paywall. Up to 200 channels tracked at any time across the site.
Video Audit scores ONE video across title, description, tags, hashtags, and chapters. Channel Audit runs the same engine against your channel's LAST 10 UPLOADS and aggregates the result — per-dimension averages, band distribution, the worst dimension flagged, plus an AI list of recurring channel-wide issues. The first is diagnosis for one video; the second is pattern detection across your output.
Yes — all 21 tools are free without an account. AI-powered tools have a daily per-IP fair-use limit (15/day for generators, 3-10/day for YouTube-API-heavy analyzers and audits like Visibility Score, Channel Audit, Competitor Analyzer, Outlier Finder). Browser-side tools (Thumbnail Preview, Title Score Checker) have no limit.
Prompts go to Anthropic's Claude API and are not retained on our side. Outputs return to your browser and are never written to a database. Channel IDs in the anonymous audit log are SHA-256-hashed before storage so reverse lookup is impossible — the log is bounded to the most recent 10,000 entries per tool for our internal YouTube Studies pages. IPs are held in memory only to enforce daily fair-use limits, never written to disk.
Most paid YouTube SEO suites are built on the same YouTube Data API and open data we use. Operating cost for our toolkit is low because we run heuristics where we can (Title Score Checker, Channel Audit aggregation) and only call AI for genuinely creative work (Fix-with-AI, pattern summaries). The toolkit is supported by lightweight contextual ads and partner links to deeper tools (Ahrefs, Canva) when relevant.
Claude Haiku 4.5 from Anthropic. Used for: the Fix-with-AI orchestrator, Competitor Analyzer pattern + direction summaries, Outlier Finder differential analysis, Channel Audit recurring-issue extraction, and Visibility Score one-sentence positioning. Fast, lightweight, and constrained by system prompts to reject platitudes ('be authentic', 'post consistently') and reference actual data.
Yes. The current 21 tools cover the YouTube creator workflow across Research, Optimize, Publish, and Analyze stages. Most recent additions: Niche Check verdict tool, YouTube Visibility Score, AI Fix-with-AI button, Channel Audit, Outlier Finder, Thumbnail Preview, Historical Tracking. Multi-platform expansion (TikTok, Instagram, Pinterest) is on the roadmap.