Compress Video for Email
Shrink videos to fit Gmail and Outlook 25MB email attachment limits. Fast local compression without losing essential audio or visuals.
or drag & drop here
Paste from clipboard with Cmd+V · Multiple files supported
Supported: MP4 · MOV · WebM
- Never uploaded
- No watermark
- No sign-up
- No server upload limits
How It Works
Simple 3-step compression powered entirely by your local browser
Choose a Video
Select a supported MP4, MOV, WebM file from your device.
Set the Compression Goal
Choose a balanced preset or a target file size based on the destination.
Review the Result
Supported videos are processed locally with browser codecs; preview the output before sharing.
Why Choose LessMB
The private, modern alternative to legacy cloud compressor websites
100% In-Browser Privacy
Zero bytes uploaded. Your personal photos, sensitive documents, and private videos never touch external servers or cloud storage.
Zero Queue & Instant Start
No waiting in cloud conversion queues or watching slow upload bars. Processing starts the millisecond you drop your file.
Hardware Acceleration
Harnesses WebAssembly SIMD and WebCodecs GPU encoding for high-fidelity compression directly on modern consumer hardware.
No Credit Consumption
Free tier compression uses your own device compute, meaning zero server credit drain for everyday single and batch tasks.
Current Platform Size Limits
Verified figures — platform limits change over time, so each row carries its check date.
| Platform | Limit | Verified |
|---|---|---|
Gmail & Email Personal Gmail | 25MB | 2026-09-29 |
Outlook / Exchange Provider dependent | 20MB | 2026-09-29 |
Tips for Best Results
- Use the recipient or provider’s published attachment limit instead of assuming every mailbox accepts the same size.
- Leave margin below the documented limit because some systems count the whole message, not only the video file.
- If the provider replaces large attachments with cloud links, choose a smaller target only when you specifically need a conventional attachment.
Frequently Asked Questions
Straight answers about this tool and how it works
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Tutorials & Guides
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