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Bulk Video Size Reducer

Hit exact file-size targets (10/25/50/100 MB, default 50) across video batches for email and messaging caps. Teams fit 15 clips under Gmail's 25 MB wall — local FFmpeg WASM, 2 free batches a day.

Runs on FFmpeg

100% Local Browser Native

How to Use the Bulk Video Size Reducer

1. Upload videos

Clips bound for email or messaging apps with hard MB walls.

2. Set the MB target

10 MB safe everywhere, 20 MB Outlook, 25 MB Gmail, 50 default, 100 high quality. Preview one file — crushed faces mean split, not squeeze.

3. Download files

Each reduced file saves individually or as ZIP. Saves count against Pro downloads.

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Frequently Asked Questions

Compressor vs Size Reducer — which tool?

Compressor holds quality constant (CRF) and lets size fall where it may; Size Reducer holds your MB target constant and adjusts quality and resolution to hit it. Emailing under 25 MB demands the Reducer; archiving demands the Compressor.

What target fits email providers?

10 MB is safe everywhere, 20 MB clears Outlook, 25 MB clears Gmail. A 15-clip batch at 25 MB each ships as separate emails — messaging apps like WhatsApp need 16–64 MB depending on platform.

How much quality will I lose?

The tool derives video bitrate from your target (target MB × 8192 ÷ seconds, clamped 100–10000k, plus 64k AAC audio): a 50 MB target on a 60-second clip encodes near 6800k and stays clean, while a 500→10 MB squeeze visibly softens. Preview one file first — if faces blur, split the batch across two emails instead of crushing further.

Are my videos uploaded when reducing?

No — reduction runs locally in your browser with FFmpeg WASM; footage never leaves your device. Only final saves count against Pro downloads.

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Last updated October 2026