Nutter Tools
Nutter Tools

A free toolbox that runs in your browser. A tool for every job.

Your files never leave your device

Images

  • Convert images
  • Compress images
  • Resize images
  • Crop
  • Watermark

PDF & files

  • Merge PDFs
  • Split a PDF
  • Images to PDF
  • PDF to images
  • Remove photo location

Video & audio

  • Compress video
  • Convert video
  • Video to GIF
  • Convert audio
  • Trim audio

Everyday

  • QR codes
  • Passwords
  • Time zones
  • Unit converter
  • Word count
  • Webcam test

Developer

  • JSON formatter
  • Base64
  • Regex tester
  • Hashes
  • JWT decoder

Site

  • About
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  • Site map
  • llms.txt

Everyday

  • Images
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  • Audio
  • PDF & files
  • Text
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  • Units & math
  • Time & dates
  • Color
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  • Device tests
  • Sun & moon

For developers

  • JSON
  • Encoding
  • Regex & cron
  • Web & auth
  • Hashing & encryption
  • Config files
  • Network
  • Browser
  • AI
  • Fake data
© Nutter Toolsnutter.tools
  1. Home
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  3. Video thumbnail downloader
Your files stay on your device

Video thumbnail downloader

Paste one link from YouTube, Vimeo, Dailymotion, TikTok, Loom, Rumble, Bilibili, SoundCloud, Spotify, or Pinterest and get every thumbnail the browser can verify, with format and size read from the bytes and the largest flagged.

This tool is in beta

Still being tested. If a result looks wrong, tell us.

Report a problem

Paste one link and every thumbnail it can prove comes back

The platform is detected from the link itself. Each candidate image is verified from its own bytes: format, width, height, and size are read from the headers, dead sizes are dropped, and the largest real image is flagged. Nothing is submitted to a server of ours.

This all runs in your browser, so some platforms are harder than others. YouTube, Vimeo, Dailymotion, SoundCloud, and Spotify answer with clean image URLs. TikTok and Bilibili sit behind bot walls and often refuse a browser request; Loom and Rumble depend on their pages exposing an og:image tag. Twitch and Reddit need API keys and are not supported, and Facebook, Instagram, and X have no reliable public way to fetch thumbnails, so they are left out on purpose. A lookalike domain (say, a site named after YouTube that is not YouTube) is refused outright. Only save images you own, have permission to use, or are using as permitted reference.

Link

http or https
More settings▾
oembed and og:image requests to the platform itself. TikTok, Bilibili, Rumble, Loom, and short links have no direct thumbnail URL, so they need this.

Each fetch is capped at 15 MB and 10 seconds, with at most 16 images per run.

What leaves your browser

The browser fetches the platforms named in your link: their thumbnail servers, oembed endpoints, and pages. Every request is built from the link you pasted. This page leaves your browser only when you press the button; never on load, never in the background. Nothing is sent anywhere else. Google Analytics still measures the visit to this page, and it never receives what you run through this tool.

Runs on this device. Nothing is uploaded.

More image tools

  • Screenshot size checker
  • Bulk image resizer
  • LQIP placeholder
All image tools

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