What is WhatsApp's video file size sharing limit?

WhatsApp officially limits direct video media sharing to 16 MB on mobile phones. Videos larger than 16 MB must either be compressed or sent as raw uncompressed documents.

How does this tool shrink video files without uploading?

The tool uses HTML5 Canvas and browser-native MediaRecorder encoding to stream frames at an optimized bitrate and resolution, creating a compressed video locally in your browser memory.

Can I burn captions or subtitles directly into the video?

Yes. You can type any caption or explanation in the subtitle box, which is cleanly rendered onto a semi-transparent black lower banner across your video frames.

Are my personal family videos uploaded to any cloud server?

No. Video processing and compression run strictly on your device using client-side Web APIs. No video data is ever transmitted across the internet.

DESK // TOOL WORKSPACE · LOCAL ENGINE

CLIENT-SIDE BUFFER (0% CLOUD STORAGE)

Video Compressor for WhatsApp: Shrink Under 16MB in Browser

This video compressor for WhatsApp shrinks video files down under the official 16MB media sharing limit directly inside your web browser. You can select target quality, add optional burned-in subtitle captions, and export a lightweight WebM or MP4 video with zero server uploads.

STEP 01

INTAKE / UPLOAD

STEP 02

ADJUST / PREVIEW

STEP 03

EXPORT / DOWNLOAD

INTAKE // DROP FILE ON DESK