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
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  • Unit converter
  • Word count
  • Webcam test

Developer

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

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Everyday

  • Images
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For developers

  • JSON
  • Encoding
  • Regex & cron
  • Web & auth
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© Nutter Toolsnutter.tools
  1. Home
  2. Video
  3. Video thumbnail generator
Your files stay on your device

Video thumbnail generator

Load a video from your device, pick frames by scrubbing, exact time, stepping, or interval, crop them, and export JPG, PNG, or WebP, all local.

This tool is in beta

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

Report a problem

Drop videos to open

MP4, WebM, or MOV your browser can decode · up to 2048.0 MB, nothing uploads · stays on your device

or paste

The video stays on your device: decode runs in the browser's own video element, frames are drawn to a canvas here, and the exported files come straight back to you. What this tool is not: it does not convert codecs, so files the browser cannot play (some HEVC and ProRes masters among them) will not open, and converting to H.264 MP4 is the usual fix. Frame stepping lands on the seek positions the decoder reports, which can sit a fraction of a frame off the exact grid on variable-frame-rate files. Only grab footage you recorded or have the rights to edit.

Frame picking

CropLoad a video first
Frame rateFor single-frame stepping
Seconds
0.1-60 s
Format
0.1 to 1

Batches stop at 200 frames, 8192 px per edge, 2048.0 MB per file, 12 hours. Bigger jobs need a desktop editor.

More video tools

  • Video to GIF
  • GIF to frames
  • Convert videos
All video tools

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