Creator toolkit
Free video calculators with visible formulas
Plan an export before you render it. Every calculator explains its assumptions so you can adjust the result for your codec, footage, platform, and quality target.
AI Thumbnail Generator
Build exact-size YouTube, Shorts, Instagram and Facebook thumbnails from a local image or video frame, with optional private in-browser AI copy ideas.
Open tool →Video Aspect Ratio Calculator
Reduce any width and height to a ratio, identify common formats, and scale dimensions without stretching the image.
Open tool →Video Frame Rate Calculator
Compare source and target frame counts, conform duration, and playback-speed changes before conversion.
Open tool →Video Bitrate Calculator
Estimate a practical target bitrate from resolution, frame rate, motion, and codec efficiency.
Open tool →Video File Size Calculator
Estimate storage requirements from duration, video bitrate, and audio bitrate using a visible formula.
Open tool →A practical planning workflow
- Choose dimensions that match the delivery platform and avoid accidental cropping.
- Estimate a bitrate that fits the resolution, frame rate, codec, and amount of motion.
- Convert that bitrate and the programme duration into an estimated file size.
- Export a short representative section and inspect fine detail, gradients, and fast motion before rendering the full project.