Resize video for vertical paid ads without re-uploading client masters

Paid social demands vertical — your deliverable is still 16:9

Agencies ship landscape hero edits, then performance teams ask for Stories and Reels placements the same week. Resizing should not mean uploading masters to a random ad-tech vendor with a vague DPA.

Cloud transcoders treat client footage like stock inventory

Resize portals built for marketers still leak:

• Brand guidelines and unreleased offers cross unknown regions
• Bitrate ladders you cannot preview before spend goes live
• Watermark exports until enterprise sales calls you back
• Separate tools for crop, convert, and compress — triple upload

Scale to 9:16 and export ad-ready MP4 locally

SnapKit resizes and converts in one browser session so media teams ship vertical variants without a transcode ticket.

Reframe for 1080×1920

Use resize video with safe margins for UI overlays.

Match platform codec expectations

Finish in convert video for MP4 delivery specs.

**Your files never leave the browser.** SnapKit runs WebAssembly, FFmpeg, and Canvas directly in your RAM — instant speed, zero cloud uploads, and privacy you can actually trust.