Question 1

How do I compress a MOV file online?

Accepted Answer

Select your MOV file, choose a preset, and start compression. The tool runs FFmpeg in your browser and returns a smaller file to download.

Question 2

Can I compress MOV without uploading it?

Accepted Answer

Yes. This is an in-browser MOV compressor. Your file stays on your device while compression runs in browser memory.

Question 3

Is this a local browser compressor or a cloud upload tool?

Accepted Answer

It is a local browser compressor. We do not send your video to CursorClip servers for processing.

Question 4

Does this upload my video to the cloud?

Accepted Answer

No. Compression runs locally in your browser. Your file is not uploaded to CursorClip servers and is not stored by us.

Question 5

Is this a privacy-friendly video compressor?

Accepted Answer

Yes. This tool is designed for local processing only, which is useful when your recording contains sensitive product, customer, or internal workflow data.

Question 6

What is the maximum file size supported?

Accepted Answer

The tool uses capability-based limits to keep browser compression stable. Typical limits are 80 MB on low-end devices, 200 MB on most devices, and up to 300 MB on high-end desktops.

Question 7

Can I keep text crisp in screen recordings?

Accepted Answer

Yes. Enable the Keep text crisp option to use higher quality settings tuned for UI-heavy recordings and product demos.

Question 8

Is this .mov compressor free?

Accepted Answer

Yes. This .mov compressor free tool runs in your browser at no cost.

Question 9

Will compression reduce quality?

Accepted Answer

Compression can reduce quality if bitrate is set too low, but this tool uses screen recording presets to keep text and UI details readable while reducing file size.

Question 10

What is the best MOV size for Slack or email?

Accepted Answer

Use the Slack, X, Notion, or Gmail presets as a starting point. They are tuned to reduce MOV file size for common upload limits while keeping clarity for demos.

Question 11

Does this work on Mac and Windows?

Accepted Answer

Yes. It works in modern browsers on macOS, Windows, and Linux when WebAssembly and Web Worker support are available.

Question 12

Which output formats are supported?

Accepted Answer

You can export compressed files as MP4 or MOV.

Question 13

Should I export QuickTime MOV or MP4?

Accepted Answer

For broad compatibility, MP4 is usually the best default. Keep MOV when your workflow specifically requires QuickTime format.

Question 14

How do I compress a video online for free?

Accepted Answer

Choose your video file, pick a preset, and run compression in your browser. When it finishes, download the smaller file directly to your device.

Question 15

Can I compress a video without uploading it?

Accepted Answer

Yes. This tool processes video locally in your browser memory, so your file is not uploaded to CursorClip servers for compression.

Question 16

What video formats are supported?

Accepted Answer

You can import common video files including MP4, MOV, M4V, WebM, MKV, and AVI. Output is available as MP4 or MOV.

Question 17

Is this video compressor really free?

Accepted Answer

Yes. The browser tool is free to use for local video compression.

Question 18

What file size limits should I expect?

Accepted Answer

The browser tool uses device-based limits for stability. Typical limits are 80 MB on low-end devices, 200 MB on most devices, and up to 300 MB on higher-capability desktops.

Question 19

Will compression reduce quality?

Accepted Answer

Compression can reduce quality if settings are too aggressive, but this tool is tuned to keep demos and screen recordings clear with balanced presets and a Keep text crisp option.

Question 20

How do I keep text sharp in screen recordings?

Accepted Answer

Turn on Keep text crisp and start with a balanced preset. For UI-heavy videos, bitrate matters more than aggressive downscaling.

Question 21

Should I export as MP4 or MOV?

Accepted Answer

MP4 is usually the best default for compatibility and smaller share-friendly outputs. Use MOV when your workflow specifically requires QuickTime format.

Question 22

Does this work on Mac and Windows?

Accepted Answer

Yes. It works in modern browsers on macOS, Windows, and Linux when WebAssembly and Web Worker support are available.

Question 23

When should I use the offline Mac compressor instead?

Accepted Answer

Use the Mac compressor when you regularly work with larger files, want native performance, or prefer an offline desktop workflow for repeated compression jobs.

Question 24

How to compress a video on Mac?

Accepted Answer

Install CursorClip, select your video, choose compression quality, and export locally. No upload is required because compression runs directly on your Mac.

Question 25

How do I reduce MOV file size?

Accepted Answer

Choose a smaller-file preset, then export to MP4 or MOV. CursorClip helps reduce MOV file size while keeping visual quality practical for email and sharing.

Question 26

Can I compress a video without uploading it?

Accepted Answer

Yes. CursorClip is an offline video compressor for Mac, so files stay on your device during compression.

Question 27

What output formats are supported?

Accepted Answer

CursorClip supports common output formats including MP4, MOV, MKV, WebM, and AVI, with presets for smaller file size and balanced quality.

Question 28

How do I calculate video file size?

Accepted Answer

Multiply your total bitrate (video + audio, in Mbps) by the duration in seconds, then divide by 8. For example: 8 Mbps video + 0.128 Mbps audio × 150 seconds ÷ 8 = approximately 153 MB. This calculator does that automatically and adds a small overhead correction for real-world containers.

Question 29

What bitrate should I use for a 1080p screen recording?

Accepted Answer

For screen recordings with text and UI, 6-10 Mbps at 1080p is the sweet spot. Text stays sharp, file sizes remain manageable. If you are recording fast motion or a game at 60 fps, push to 12-15 Mbps. Going above 20 Mbps rarely improves perceptual quality for screen content.

Question 30

Does frame rate affect file size?

Accepted Answer

Not directly. File size is determined by bitrate × duration, and bitrate is independent of fps. However, to maintain the same visual quality at 60 fps vs 30 fps, you typically need roughly 1.3-1.5× more bitrate to encode the extra frames cleanly. The calculator assumes a fixed bitrate regardless of fps.

Question 31

What's the difference between bitrate and file size?

Accepted Answer

Bitrate is a rate: how fast data flows (bits per second). File size is the total accumulation of that data over time. A 10 Mbps video that runs for 60 seconds produces a 75 MB file. Think of bitrate as the water pressure and file size as how full the bucket gets.

Question 32

Why does my file end up larger than the calculator says?

Accepted Answer

Container overhead, metadata, subtitles, and variable bitrate (VBR) encoding can all push the actual file above the calculated estimate. Screen recorders also often default to CRF (constant quality) mode which increases bitrate during fast motion. The formula gives a reliable baseline for CBR exports.

Question 33

How can I make my screen recording smaller without losing quality?

Accepted Answer

A few practical options: use H.265/HEVC instead of H.264 for roughly 40% smaller files at the same quality; drop to 30 fps if your content doesn't need 60; crop to the actual area of interest rather than recording a full 4K screen; and run through a browser compressor like our Video Compressor for Mac tool before sharing.

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