Alternatives & comparisons

Device Frames alternative: 3D mockups and videos, free

A Device Frames alternative that runs in your browser: 3D device mockups and promo videos, free images, no signup, nothing uploaded, fair source.

Published September 4, 2026

Device Frames is one of the closer cousins to OpenMock: a browser-based 3D device editor with keyframe animation and a free-forever positioning. If you have used it, OpenMock will feel familiar in spirit. The differences are in the rendering pipeline, the privacy model and the licence — which is what this page is about.

What Device Frames does well

Device Frames is a web-based 3D device mockup generator that produces PNG images and animated videos (including transparent WebM) with keyframe controls.

• Browser-based with a low barrier to entry
• Keyframe animation and transparent video export
• Free tier without watermarks on stills

Where OpenMock is different

OpenMock is a browser-based studio for putting screenshots and screen recordings on 3D devices and turning them into promo videos. The differences that matter for someone comparing it with Device Frames:

• Everything stays local. OpenMock does its rendering and its video encoding in your browser; nothing is uploaded and there is no account to create.
• Fair source. OpenMock's renderer, effects and export pipeline are public under FSL-1.1-MIT.
• Cinematic effects stack. Adaptive motion blur with a shutter model, depth of field, screen glow that lights the device from its display, bloom, grain, vignette, glass edge lighting and three HDRI environments.
• A real timeline. Multiple shots with their own media and camera, fade transitions, text and logo shots, audio clips — a promo video, not just an animated mockup.
• Current Apple lineup as procedural models. iPhone 17 / 17 Pro / 17 Pro Max, iPad Pro, MacBook Pro 14/16, MacBook Neo, Apple Watch Ultra 3, Pro Display XDR.

Side by side

When to stay with Device Frames

If transparent-background video (WebM with alpha) is a hard requirement for compositing in another editor, check whether it matters more to you than the local-only pipeline — OpenMock exports transparent PNG stills and opaque MP4 video.

When OpenMock is the better fit

• Your recordings must never leave your machine
• You want the source code to be public
• You want motion blur, depth of field and screen glow rather than a plain render
• You want text, logo and audio in the same video project
• You want the current iPhone 17 and MacBook Neo generation

Try it in two minutes

Open OpenMock, pick a device, drop in a screenshot or screen recording, move the camera, export. If the result isn't what you wanted, you have lost two minutes and no personal data.

FAQ

Is OpenMock a free Device Frames alternative?

For images, completely: PNG, JPEG and WebP exports are free with no signup or watermark. Video exports are free at up to 720p/30 fps with a watermark; Pro ($5/month or $36/year) removes it and unlocks 4K and 60 fps.

Does OpenMock upload my screenshots or recordings?

No. Rendering, decoding and encoding all happen in your browser with WebGL and WebCodecs. Nothing is sent to a server and there is no account to create.

Does OpenMock export transparent video like Device Frames?

OpenMock exports transparent PNG images and opaque MP4 video. Transparent video is not currently supported; composite the MP4 over a matching background in your editor, or export a transparent still for layouts.

Is OpenMock free like Device Frames?

Images are free forever with no watermark and no signup. Video is free at 720p/30 fps with a watermark; Pro ($5/month or $36/year) removes it and unlocks 4K and 60 fps.

This comparison describes Device Frames from its public materials as of September 2026. Features and prices change — check the Device Frames site for current details.