# Free video tools

Quick utilities for thumbnails, captions, embeds, and planning. Create a free Videco account when you download results.

- [**YouTube thumbnail generator** \
1280×720 layouts with title text\
Open tool](/content/resources/tools/youtube-thumbnail-generator/index.html)
- [**Video file size calculator** \
Estimate size from duration and bitrate\
Open tool](/content/resources/tools/video-file-size-calculator/index.html)
- [**Social video spec guide** \
Aspect ratios and sizes by platform\
Open tool](/content/resources/tools/social-video-specs/index.html)
- [**Caption timestamp formatter** \
Turn rough notes into SRT blocks\
Open tool](/content/resources/tools/caption-timestamp-formatter/index.html)
- [**Video embed code generator** \
Responsive iframe snippets\
Open tool](/content/resources/tools/video-embed-generator/index.html)