AppVid

Preview videos that never leave your machine

App store footage of unreleased apps is sensitive. AppVid edits and transcodes it entirely in your browser.

Open AppVid

Why local

Store listings need portrait preview videos cut to exact durations and device sizes. The usual path means uploading unreleased app footage to a video service. AppVid does the whole job client-side with FFmpeg compiled to WebAssembly, so your files stay on your machine.

Device-accurate from the start

Start from presets for current store-accepted device sizes, then place your screen recordings on the timeline. A readiness panel flags duration and resolution issues against store rules as you edit.

A real timeline, with sound

Lay voiceover and music on the timeline with snapping, keep or separate the original recording audio, and preview before the transcode.

One video, every language

Text overlays come from per-locale catalogs. Translate them offline if you like, then batch-export every locale in one run.

What it does

No uploads

Import, edit, and export entirely in the browser.

Store presets

Portrait sizes for current iPhone and Android store requirements.

Readiness checks

Warns on store duration and resolution rules before you export.

Audio timeline

Voiceover and music segments with snapping and preview.

Multilingual overlays

Per-locale text catalogs with batch export across languages.

Works offline

Installable PWA; no account needed.

Frequently asked questions

Where do my recordings go?

Nowhere. Editing and transcoding run locally via WebAssembly. Draft metadata is saved in the browser; the media files are yours to keep on disk.

Can it produce every locale variant for App Store Connect?

Yes. Export each locale individually or batch-export all of them in one pass after translating the overlay catalogs.