One of the challenges that some would-be TikTok rivals have faced is that they often lack the same robust set of content creation tools, like filters, effects and tools for repurposing others’ content — like TikTok’s Stitch and Duet, for example. It now appears that Snapchat is working to correct that latter problem, however, as it’s been spotted working on a TikTok Duets-like feature called “Remix,” designed for replying to Snaps. This feature will allow users to create new content using their friends’ Snaps — a “remix,” that is.

Initially, the feature will allow users to reply to a friend’s story with a remixed Snap. To do so, you can record your own Snap alongside the original as it plays — much like a TikTok Duet.

The feature, which Snap confirms has launched into external testing, follows Instagram’s public test of a similarly named “Remix” feature focused on Reels content. (It had also tested a version for Stories as a first step.)

In Instagram’s case, the company explains that Remix lets anyone create an Instagram Reel where your video and theirs play side by side. This is, essentially, Instagram’s own version of TikTok Duets, a tool that’s often used to interact with other TikTok users’ content. In Duets, TikTok users can sing, dance, joke or act alongside another user’s video; cook someone else’s recipe; record reaction videos; boost videos from lesser-known creators; and more. It’s a core part of what makes TikTok feel like a social network, rather than just a platform for more passive video viewing.

Last fall, TikTok announced it was introducing several new layout options for Duets in addition to the left-right layout, including a new top-bottom layout, a special “react” layout and a three-screen layout.

Some of those same Duet formats and others now appear to be under consideration by Snap, as well.

In its Remix feature, Snapchat users are presented with a screen where they can choose from a variety of options for combining Snaps — including the side-by-side and top-and-bottom formats, as well as others like where content is overlaid or where you could react to a Snap.

According to reverse engineer Alessandro Paluzzi, who first spotted the addition, Remix also offers a way for users to tag friends or other people they want to have permission to either remix or share their Snap via a new toggle switch.

It appears that users will be able to access the “Remix” feature from the same menu where you can today either report a Snap or send it to others.

This menu, of course, is also available from within Snapchat’s new TikTok competitor, known as Spotlight, launched last year.

Though initially Remix is being tested among friends, we understand that it’s expected to make its way to other parts of the Snapchat app in time. And likely this would include Spotlight. Much like TikTok, Spotlight offers a video feed filled with short-form, entertaining videos that you can scroll through with up and down swipes, often set to popular music — thanks to Snap’s music industry deals. This would be a natural fit for Remixes, as it’s a common way for users to interact with each others’ content to create a dialog.

Snap confirmed with TechCrunch it’s beginning to test Remix on its app.

“I can confirm that externally we are testing the ability to reply to a friend’s story with a remixed Snap,” a spokesperson said. “It lets you build on your friend’s Snap while recording your own alongside the original as it plays for contextual conversations on Snapchat,” they noted.

The company didn’t offer an ETA for a broader rollout at this time.