Local reference board

Organize competitor thumbnails without a backend

Paste public YouTube links, tag visible thumbnail patterns, pin your own draft at the top, and export a local research board before publishing.

Board signals

Local MVP
LocalStorage draft onlyManual pattern tagsMarkdown and JSON export

Reference setup

Collect the public references you want to compare against

This MVP stores the draft in localStorage only. It does not call the YouTube Data API, save to a backend, require login, or send raw URLs to analytics.

Pin own thumbnail

Pin my draft at the top

Add a local image so the board starts with your own thumbnail before public references. The image stays in this browser draft.

Use JPG, PNG, GIF, or WebP under 8 MB. This is local-only and is not uploaded.

Pinned draft will appear here

Choose a local image to keep your own thumbnail above the reference board.

Add references

Paste YouTube URLs in bulk

Add one URL per line. The board stores only video IDs, notes, and tags in the local draft.

Use up to 30 public YouTube or Shorts URLs. Duplicate IDs are ignored.

Pattern board

Tag visible patterns instead of copying the thumbnails

Use the board to notice packaging patterns, not to reuse someone else’s creative. Manual notes and tags stay in localStorage.

Add references to start the board

Paste a few public YouTube links, then tag the patterns that repeat across the thumbnails.

Export

Export the local research board

Download Markdown for a human review note or JSON for a structured local archive. The JSON contains video IDs, tags, and manual notes.

Drafts stay in this browser localStorage. Clearing site data or using another device removes the draft.

Exports are ready after you add at least one reference.

Related next tools

Use the board before comparison and packaging checks

After grouping reference patterns, continue into frame selection, thumbnail comparison, test logging, title, text, description, Shorts caption, and the full tools hub workflow.

Related guides

Read the strategy behind reference research

These guides help you judge audience fit, brand consistency, reference boundaries, and CTR repair after the board reveals patterns.

FAQ

Questions about reference boards

Does this save my board to GrabThumbs?

No. The MVP stores drafts in browser localStorage only. Nothing is saved to a backend account or database.

Does this use the YouTube Data API?

No. The board parses public YouTube video IDs from URLs and builds public thumbnail image URLs. It does not run keyword search or metadata lookup.

Can I copy competitor thumbnails from this board?

No. The board is for pattern research and comparison only. Do not reuse another creator’s thumbnail without permission.

Why are tags manual?

Manual tags keep the MVP free, explainable, and local. AI scoring or automatic classification should wait until usage justifies the cost and privacy review.

Site navigation

Need broader site context?

Use these pages to review how GrabThumbs works, how public references should be handled, and where the site standards live.