Help & FAQ
Quick answers to the questions we get most.
Which Facebook URLs are supported?▾
Reels (
facebook.com/reel/<id>), Watch (facebook.com/watch?v=<id>), share/v shortlinks (facebook.com/share/v/<hash>), fb.watch shortlinks, and m.facebook.com mobile URLs. Stories require Facebook login and aren't supported.What's the difference between HD, SD, Best, and Audio?▾
HD and SD hand you Facebook's own progressive MP4 URLs — fast, ~720p. Best asks the backend to merge the highest-resolution video stream with the audio track and re-encode to H.264 — full original resolution (often 1080p), ~10–30 s. Audio grabs only the audio as M4A — perfect for ringtones and listening on the move.
Where do downloaded videos go?▾
Videos save to your iOS Photos library by default. The app also keeps a copy in its sandbox so the in-app player works offline. From the Saved tab you can long-press an item to share, copy URL, or export to Files / iCloud Drive. The Documents folder is also visible in the Files app under "On My iPhone → Grabify".
Audio downloads don't appear in Photos. Why?▾
Photos only accepts video files. Audio (.m4a) lives in the app's Saved tab — tap to play in the in-app player, or use "Save to Files" from the context menu to export.
I see ‘not a valid Facebook video link’.▾
Facebook's iOS Copy Link sometimes prefixes the URL with the title (e.g.
"Facebook https://..."). Grabify handles that automatically; if you still see the error, paste only the URL portion starting at https://.Can I download multiple videos at once?▾
Yes. Each download lives in the Downloads tab and runs in the background. You can paste a new link while a previous one is still processing — they queue automatically.
Best quality takes a while. Is that normal?▾
Yes — for Best mode, the server downloads the separate video + audio streams from Facebook, merges them with ffmpeg, re-encodes to H.264 (so iOS Photos accepts it), and uploads to a CDN. Typical first run is 10–30 s. Subsequent requests for the same URL hit cache and return in milliseconds.
Does it work on Android / web?▾
Currently iOS only. The backend is platform-agnostic so an Android or web client could be built — no concrete timeline yet.
Is it free? Are there ads?▾
Free. No subscription. No ads. No tracking SDKs.
Still stuck?
Email us with the URL you tried and a screenshot — we usually reply within a day.
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