Video Reference Library
Formats, codecs, resolutions, aspect ratios, and terminology — fully explained in 14 languages.
Formats
Covering all major video formats with specs, compatibility, and use cases.
Codecs
Detailed comparison of video codecs with compression ratios and quality benchmarks.
Resolutions
Complete resolution guide from 144p to 8K with bitrate recommendations.
Aspect Ratios
Aspect ratio reference for widescreen, vertical, square, and cinematic formats.
Terminology
50+ video terms explained in plain language — bitrate, codec, HDR, and more.
Platform Specs
Platform-specific specs for YouTube, TikTok, Instagram, Bilibili, and more.
Free Video Tools
Browser-based tools — no uploads, no servers, just your browser.
Video Info
Extract metadata from any video file in your browser. No uploads, no servers.
✂File Size Calculator
Estimate video file size from bitrate, duration, and resolution.
🔄Aspect Ratio Calculator
Convert between different aspect ratios and calculate dimensions.
📝Title Generator
Generate catchy video titles for YouTube, TikTok, and Shorts.
🏷Hashtag Generator
Generate relevant hashtags for your video content in multiple languages.
⏱Timecode Calculator
Convert between frames, timecode, and seconds for video editing.
📊Engagement Calculator
Calculate video engagement rate: likes, comments, shares vs views.
📄Description Generator
Generate professional video descriptions with templates in 14 languages.
14 Languages
Every format, codec, and term fully translated.
100% Browser
All tools run client-side. No data leaves your device.
Structured Reference
Every spec has a dedicated page with comparisons and platform notes.