X's native in-app video editor and recorder — record, trim, green-screen, and caption clips, with Grok-powered caption correction and translation, before posting to X.
Last verified · 2026-10-06 · by Moe Ameen
The X Video Editor is the native video editor and recorder built into the X app. It lets you record or import a clip, make basic edits, add styled overlay captions, and post without leaving X. X launched it in July 2026 as part of a push to get creators posting original video in-app instead of reposting clips scraped from elsewhere, and it has been shown running in the iOS app.
In early October 2026 X refreshed the editor and added its most-requested feature: editable captions. Inside the composer you can now edit X's auto-generated captions by hand, ask Grok to correct them, or tell Grok how to change them — including translating the caption track into another language. The refresh also made the layout cleaner and easier to use. The update was announced by Allegra Jacchia, who leads X's Creators Product team.
Earlier capabilities carry over: multilingual overlay captions you can style, and green-screen recording that swaps your background for a post or a photo from your camera roll. Taken together it is a competent, in-flow editor for short clips you plan to post to X.
The honest framing for a creator: the X Video Editor is a destination-locked polishing tool. It edits video you already filmed and generates nothing net-new — no avatar, no B-roll, no clip detection from a long talk. Everything it produces is tied to X's posting flow, so the captions and crops do not travel to TikTok, Reels, or Shorts. It does the in-app X job well and stops there. Confirm current availability, platform, and the exact caption and Grok options on X before relying on them.
Think of the X Video Editor as the last 10% of a clip's life — the in-app polish right before it posts to X. It is good at that, and genuinely nothing more: it only touches footage you already shot, it only outputs to X, and it generates no video of its own. The question a serious creator should ask is not "how do I caption this one X post" but "how do I get a full week of content out of the raw material I filmed." That is [Kompozy](/)'s job, and it sits a layer above a single-destination editor.
Where X polishes one clip for one feed, Kompozy turns one source into 18 formats. From a long recording it cuts [Clipped Shorts](/), writes a [Blog Article](/) and an [Email Newsletter](/), builds a brand-exact [Carousel via HyperFrames](/glossary/hyperframes) and Quote Graphics, and — the thing X cannot do at all — generates net-new video you never filmed, like a [Persona Short](/glossary/persona-shorts) that delivers the point on camera with a face-locked HeyGen avatar. Every piece is held to one voice by the [Persona Brief](/glossary/persona-brief). Then [Autopilot](/glossary/autopilot) reframes each asset to 9:16, 1:1, and 16:9, burns captions into the file so they survive any re-upload, and publishes across eight social platforms plus blog and email behind a per-post review. Record once; let Kompozy produce and ship the whole week — X post included.
It is X's native in-app video editor and recorder. You can record or import a clip, trim it, add styled overlay captions, and use green-screen backgrounds, then post to X without a separate app. An October 2026 update added editable captions you can fix by hand or hand to Grok to correct and translate.
Inside the composer, Grok can correct X's auto-generated captions or change them to your spec — including translating the caption track into another language. It is a caption-editing assist in the posting flow, not a video generator.
It only edits video you already recorded — trimming, captioning, translating captions, and green-screen backgrounds. It generates no net-new footage, avatar, or B-roll, and it does not detect clips from a long talk. For net-new video like a face-locked avatar short, you need a generation tool such as Kompozy.
Not cleanly. The captions, crop, and styling you apply in X are tied to X's posting flow, so re-uploading the file elsewhere means re-captioning and re-cropping by hand. To get one clip captioned and correctly framed on every platform, use an engine like Kompozy that burns captions into the file and reframes per platform.
The editor and its October 2026 caption update have been shown in the iOS app. Availability on other platforms can change, so confirm current support in the X app and on X's own channels before relying on it.