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Video Creator Tools
YouTube thumbnail grabber, playlist duration calculator, and file size estimator in one.
About Video Tools
Thumbnail: Extract YouTube thumbnails in all available sizes from Default (120x90) to Max Resolution (1280x720). Copy the URL or open directly.
Duration Calc: Enter multiple video durations and see the total time. Supports smart text paste extraction and playback speed calculations (1.25x to 2x).
File Size: Estimate video file sizes from resolution, bitrate, and duration. Compare file sizes across H.264, H.265, VP9, and AV1 codecs.
📖How to Use
- 1Select a mode: YouTube thumbnail download, video duration calculator, or file size estimator
- 2For thumbnails, paste a YouTube URL to instantly fetch high-quality thumbnail images
- 3Enter resolution, frame rate, and bitrate to estimate video file size
💡Tips & Knowledge
- •YouTube thumbnail sizes: maxresdefault is 1280×720px — useful for A/B testing thumbnail designs
- •File size estimate: bitrate (Mbps) × duration (s) ÷ 8. A 1-hour Full HD video is typically 5–10 GB
- •Duration calculator adds up multiple clip lengths — handy for checking total footage before editing
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All calculations run in your browser. No data is sent to any server.