AI UGC Video Generator: turn a page URL into a ready-to-post video

The iReplay.tv UGC Video Generator turns any product, service or article page into a short vertical video you can post straight to TikTok, Instagram Reels or YouTube Shorts. Paste the URL, pick one of the hooks it writes, and it generates the footage, burns on word-synced captions, records a voice-over and hands you the file with a caption and up to five hashtags. There is nothing to film, no footage to upload and no timeline to edit.

The footage is made for your hook

Most tools drop your words over a stock clip. This one writes an image prompt for the hook you chose, generates the opening frame, writes a motion prompt from that frame, and generates the video from it. A hook about distributing property listings gets an agent at a cluttered desk, not someone folding a shirt in a kitchen. Stock clips are offered as a faster alternative when a genuinely relevant one exists, but generating is the normal path.

Bring your own key and pay at cost

One OpenRouter key covers the hook writing, the image, the video and the voice-over. It is stored in your browser only: sent with a generation request, used for that request, then discarded. We never save it on our servers, never write it to a log and never share it, and you can delete it at any time. With your own key a video is one credit, because you pay OpenRouter directly at cost. Your first video is free. One credit is $1, EUR 1, GBP 1 or CHF 1, billed in your own currency, with no subscription.

Made for TikTok, Instagram Reels, YouTube Shorts and LinkedIn

• TikTok — 9:16 vertical at 5, 10 or 15 seconds, with the hook burned on as word-synced captions and up to five hashtags written for you. TikTok also reads the C2PA Content Credentials we sign into every file and labels the video as AI-generated automatically.
• Instagram Reels — the same 9:16 vertical cut, with the caption band kept clear of the bottom chrome so nothing important sits under the interface.
• YouTube Shorts — 9:16 vertical again, with a voice-over so the video works with the sound on.
• LinkedIn — 1:1 square, the shape that holds the most feed height on desktop and mobile, or 16:9 landscape if you would rather post a wide cut.

Formats, languages and labelling

Output is 9:16 vertical for TikTok, Instagram Reels and YouTube Shorts, 1:1 square for the LinkedIn and Instagram feed, or 16:9 landscape for YouTube and the web, at 5, 10 or 15 seconds. Hooks are written in the language of the page by default, so a French shop page gets French hooks, and eleven languages can be forced instead. Every video carries an on-screen AI-generated label and a signed C2PA Content Credentials manifest declaring trained algorithmic media, which TikTok reads to label AI content automatically.

Need a video ad rather than a creator-style post? The AI Ad Generator builds a designed ad from a product page in 16:9, 9:16 and 1:1. The tool was built by Sylvain Corvaisier, a streaming and video engineer with 20 years in the industry. iReplay.tv is run by a collective of streaming and broadcast engineers; you can also hire streaming and broadcast specialists.